Portuguese military aircraft serials
Encyclopedia
In Portugal
to identify individual aircraft, all military aircraft are allocated and display a serial number
. A common serial number system is used for aircraft operated by the three military branches, the Portuguese Air Force
, Portuguese Naval Aviation
and Portuguese Army
. Individual agencies have each their own system.
Some aircraft that were acquired and offered to Portugal, even before the organization of the military aviation as an entity, never received serials, being only identified by their own names.
and Breguet 16Bn-2
.
However, this system was not well understood by some air bases which thought that a certain group of serials had been assigned to the airfield and not to the aircraft. For example, on November 12, 1935 when the Moranes 151, 152, 192 and 194 were transferred to the Tancos airfield, they were given at that location the serials respectively 185,186 183 and 184. On the same date the Moranes 183 and 184, which had been based at Tancos were transferred to Sintra where they maintained these same serial numbers. This lead that during 1936 and 1937 four aircraft used simultaneously two serials.
Also there were cases where two different types of aircraft were assigned the same block of serial numbers. This was the case of the Tiger Moth and Junkers Ju 52, both using the 100 to 110 block, and the range 125 to 137 being used simultaneously by the Avro 626 and Tiger Moth.
However, even with this mistakes this system wasn't immediately applied everywhere, as in October 1935, there were still aircraft flying with the previous sequence system.
Also it was stated that the changes should be implemented as soon as possible, and that aircraft should maintain their serial numbers even when transferred to other bases.
|+ Serial number blocks
|-
! style="text-align: center; background: #aacccc;"|Aircraft type
! style="text-align: center; background: #aacccc;"|Serial
|-
| de Havilland Tiger Moth DH-82
|| 101—150
|-
| Avro
and Morane-Saulnier
|| 151—199
|-
| Junkers Ju 52
|| 201—250
|-
| Junkers Ju 86
|| 251—299
|-
| Potez
|| 301—340
|-
| Vickers
|| 351—380
|-
| Hawker Fury
and Hind
|| 401—420
|-
| Gloster Gladiator
|| 451—499
|-
| Various (de Havilland DH-84 Dragon
, Caproni
, etc.) || 501—549
|-
During World War II
a large number of aircraft was interned and incorporated in the Aeronáutica Militar, forcing the use of serial numbers that had been assigned to aircraft meanwhile retired. This resulted in assignment of blocks starting to 510 and 600 to the Hawker Hurricane
s. The 300 block series used before by the Potez 25
(retired) was reassigned to the new Supermarine Spitfire I
, P-38 Lightning
and P-39 Airacobra. However, the Supermarine Spitfire V
received still during the war and afterwards, was given as an oddity the serial number block 1 to 95.
The 700 block series was assigned to the AT-6
and Harvard
s that were received from 1947. The Airspeed Oxford
was assigned the 500 block series which was also used by the de Havilland DH-84 Dragon
(504 to 506).
(D-1).
by the aircraft assigned to the Quartel General de Lourenço Marques (Army Headquarters at Lourenço Marques), in 1940s.
Serial numbers with one or two digits were given to these aircraft. For example, Tiger Moth 1 to 9, Hornet Moth 10, General Aircraft Monospar 15, Avro Anson 20 and 21, and Beechcraft Bonanza 25.
In 1946 these aircraft were transferred and assigned to the Unidade de Instrução Aeronáutica (Aeronautical Training Unit).
With the implementation of Regulation 13602 of July 11, 1951, these aircraft also received numbers in the new system, and in May 1952 some of them were transferred to the Portuguese Air Force.
The Administrative Note 969 of June 8, 1951, of the 2nd Repartition stated that this new system was to be applied only to the following aircraft in the inventory: de Havilland Canada DHC-1 Chipmunk
, AT-6
, Harvard
, Junkers Ju 52
, Douglas C-47
, SB-17, Douglas C-54 Skymaster
. Although, later other aircraft already in service in 1951 received serials from the new system. It was the case of the Miles Magister
(12**), Airspeed Oxford
(21**), Avro Anson
(22**), and de Havilland DH-84 Dragon
(23**).
was a general sequential system. This system began being implemented in 1917 with the F.B.A hydroplanes, which consisted in the assignment of the natural numbering sequence (1,2,3, ...) to each aircraft type.
In some cases, a second number was assigned to each aircraft to represent its position within the naval fleet, thus allowing an easier identification.
A serial consisting of two parts, being the first part a letter designating either the manufacturer or the primary mission of the aircraft, and the second part a number separated from the letter by a hyphen, and designating the aircraft order within the fleet.
|+ Serial number blocks
|-
! style="text-align: center; background: #aacccc;"|Aircraft type
! style="text-align: center; background: #aacccc;"|Serial
|-
| Beechcraft AT-11 Kansan
,
Beechcraft D-18S
|| BC-1 to BC-12
|-
| North American SNJ-4
|| I-1 to I-8
|-
| Curtiss SB2C-5 Helldiver
|| AS-1 to AS-24
|-
| Bristol Beaufighter
|| BF-1 to BF-17
|-
This system was used until 1952, when the Naval Aviation aircraft was integrated into the Portuguese Air Force, and the Air Force serial system was adopted.
helicopter
s were assigned the serial numbers 9201 to 9205, in accordance to the regulations in use with the Air Force. However, when the Air Force integrated system was introduced in 1993 they also received the digit 1 before the assigned serials (becoming 19201 to 19205), and had the color of the serial number changed from black to white.
. Seven basic functions for the aircraft in service were defined, which corresponded to the first digit in a four digit serial number. The second digit corresponded to a specific aircraft model, and the two remaining were assigned in sequence.
|+ First digit and function correspondence
|-
! style="text-align: center; background: #aacccc;"|First digit
! style="text-align: center; background: #aacccc;"|Function
|-
| 1 || Single engine training
|-
| 2 || Multi-engine training
|-
| 3 || Reconnaissance and/or observation
|-
| 4 || Fighter or anti-submarine aircraft (Piston engine)
|-
| 5 || Fighter (Jet engine)
|-
| 6 || Transport
|-
| 7 || Search and rescue or bomber (Piston engine)
|-
| 8 || Reserved
|-
| 9 || Miscellaneous
|-
The complete revision of the serial numbers applied to the whole inventory was only completed by 1958. Even then, some aircraft coming from the Naval Aviation, never received correct serial numbers within this system.
On August 5, 1969, the Direcção de Serviço de Material (Directorate of Material Service) new rules introduced some slight changes in the system. Basically the meaning of the first digit, the type, represented from then on a mix between the function/mission and type/class of aircraft. This was intended to solve the shortage of available serial numbers and the introduction of new types of aircraft.
|+ First digit and type correspondence
|-
! style="text-align: center; background: #aacccc;"|First digit
! style="text-align: center; background: #aacccc;"|Type
|-
| 1 || Single engine training
|-
| 2 || Multi-engine training
|-
| 3 || Reconnaissance and/or observation
|-
| 4 || Fighter or anti-submarine aircraft (Piston engine)
|-
| 5 || Fighter (Jet engine)
|-
| 6 || Transport (Piston engine)
|-
| 7 || Search and rescue or bomber (Piston engine)
|-
| 8 || Multi-engined jet (except fighters)
|-
| 9 || Miscellaneous
|-
The B-26 Invader
s were the first type to receive serials (7101 to 7107).
On December 22, 1988, a study by the Air Force Headquarters 3rd Division was created with the intent of updating the serial system concept, thus correcting some deviations that had happened since the implementation of the 1951/1969 system.
The most important of these deviations had been:
This new system would be a compromise between the existing system and the needs arising from the automatic treatment of information. However, the defined criteria would force the change of all serial numbers in the Air Force aircraft inventory, and the changes were not approved.
|+ First digit and type correspondence
|-
! style="text-align: center; background: #aacccc;"|First digit
! style="text-align: center; background: #aacccc;"|Type/class
|-
| 1 || Sailplanes (gliders) with or without engine
|-
| 2 || Conventional aircraft, single engine
|-
| 3 || Conventional aircraft, multi-engine
|-
| 4 || Turboprop aircraft, single engine
|-
| 5 || Turboprop aircraft, multi-engine
|-
| 6 || Jet aircraft, single engine
|-
| 7 || Jet aircraft, multi-engine
|-
| 8 || Helicopters, single engine
|-
| 9 || Helicopters, multi-engine
|-
Nevertheless, some serial numbers using this system were applied to aircraft bought in the meantime. It was the case of the Dassault Falcon 50
(74**), Westland Lynx
(92**), and the Lockheed F-16 Fighting Falcon
(66**).
On January 1, 1994, the Sistema de Atribuição de Números de Matrícula (Serial Number Assignment System) was established, adding a fifth digit to the serial.
|+ Second digit and function association
|-
! style="text-align: center; background: #aacccc;"|Second digit
! style="text-align: center; background: #aacccc;"|Function/mission
|-
| 0 || Aircraft without engine
|-
| 1 || Training single engine and sailplanes/gliders with engine
|-
| 2 || Training multi-engine
|-
| 3 || Liaison and/or reconnaissance
|-
| 4 || Maritime patrol and bombers
|-
| 5 || Fighters and fighter-bombers
|-
| 6 || Transport
|-
| 7 || Support and specials
|-
| 8 || Reserved
|-
| 9 || Helicopters and miscellaneous
|-
The implementation of this system forced the following changes:
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...
to identify individual aircraft, all military aircraft are allocated and display a serial number
Serial number
A serial number is a unique number assigned for identification which varies from its successor or predecessor by a fixed discrete integer value...
. A common serial number system is used for aircraft operated by the three military branches, the Portuguese Air Force
Portuguese Air Force
The Portuguese Air Force is the air force of Portugal. Formed on July 1, 1952, with the Aeronáutica Militar and Aviação Naval united in a single independent Air Force, it is one of the three branches of the Portuguese Armed Forces and its origins dates back to 1912, when the military aviation...
, Portuguese Naval Aviation
Portuguese Naval Aviation
The Portuguese Naval Aviation , was the air branch of the Portuguese Navy until 1952, and is today the command of the Navy responsible for the operation of the aircraft on board their ships...
and Portuguese Army
Portuguese Army
The Portuguese Army is the ground branch of the Portuguese Armed Forces which, in co-operation with other branches of the Portuguese military, is charged with the defence of Portugal...
. Individual agencies have each their own system.
Some aircraft that were acquired and offered to Portugal, even before the organization of the military aviation as an entity, never received serials, being only identified by their own names.
Sequential system by aircraft type
In 1914, with the foundation of the Escola de Aeronáutica Militar (School of Military Aeronautic) a serial sequential system by aircraft type was implemented. This system consisted in the assignment of a serial number to each aircraft of a certain type. For example the Caudron G.III received serials from 1, 2, 3 and so on, as well the Farman MF-11 received the designation of MF11-1, MF11-2, and MF11-3. Aircraft that were the single existing example didn't receive serials, i.e. Morane-Saulnier Type HMorane-Saulnier
Aéroplanes Morane-Saulnier is a French aircraft manufacturing company formed in October 1911 by Raymond Saulnier and the Morane brothers, Leon and Robert...
and Breguet 16Bn-2
Breguet 16
|-See also:...
.
Block numbering system
In 1935, with the Administrative Regulation 172 of March 16, 1935 of the 3rd Division of the Direcção da Arma de Aeronáutica (Directorate of the Army Aviation), serials began to be assigned in blocks of numbers with three digits each. The blocks were non-contiguous and were related with the airfield where the aircraft were stationed.However, this system was not well understood by some air bases which thought that a certain group of serials had been assigned to the airfield and not to the aircraft. For example, on November 12, 1935 when the Moranes 151, 152, 192 and 194 were transferred to the Tancos airfield, they were given at that location the serials respectively 185,186 183 and 184. On the same date the Moranes 183 and 184, which had been based at Tancos were transferred to Sintra where they maintained these same serial numbers. This lead that during 1936 and 1937 four aircraft used simultaneously two serials.
Also there were cases where two different types of aircraft were assigned the same block of serial numbers. This was the case of the Tiger Moth and Junkers Ju 52, both using the 100 to 110 block, and the range 125 to 137 being used simultaneously by the Avro 626 and Tiger Moth.
However, even with this mistakes this system wasn't immediately applied everywhere, as in October 1935, there were still aircraft flying with the previous sequence system.
2nd block numbering system version
After the military aeronautic restructuring of 1937, a new block numbering system was implemented with the Administrative Regulation 642 of June 3, 1938. This new system implemented the same block numbering system as the previous one, but more clearly defined, in which blocks of 50 serial numbers were assigned to each of the eight aircraft types in service. The blocks ranged from 101 to 450, being a last block of 501 to 549 assigned to special aircraft, either because they were bought for test or were single example of a certain type.Also it was stated that the changes should be implemented as soon as possible, and that aircraft should maintain their serial numbers even when transferred to other bases.
|+ Serial number blocks
|-
! style="text-align: center; background: #aacccc;"|Aircraft type
! style="text-align: center; background: #aacccc;"|Serial
|-
| de Havilland Tiger Moth DH-82
De Havilland Tiger Moth
The de Havilland DH 82 Tiger Moth is a 1930s biplane designed by Geoffrey de Havilland and was operated by the Royal Air Force and others as a primary trainer. The Tiger Moth remained in service with the RAF until replaced by the de Havilland Chipmunk in 1952, when many of the surplus aircraft...
|| 101—150
|-
| Avro
Avro
Avro was a British aircraft manufacturer, with numerous landmark designs such as the Avro 504 trainer in the First World War, the Avro Lancaster, one of the pre-eminent bombers of the Second World War, and the delta wing Avro Vulcan, a stalwart of the Cold War.-Early history:One of the world's...
and Morane-Saulnier
Morane-Saulnier
Aéroplanes Morane-Saulnier is a French aircraft manufacturing company formed in October 1911 by Raymond Saulnier and the Morane brothers, Leon and Robert...
|| 151—199
|-
| Junkers Ju 52
Junkers Ju 52
The Junkers Ju 52 was a German transport aircraft manufactured from 1932 to 1945. It saw both civilian and military service during the 1930s and 1940s. In a civilian role, it flew with over 12 air carriers including Swissair and Deutsche Luft Hansa as an airliner and freight hauler...
|| 201—250
|-
| Junkers Ju 86
Junkers Ju 86
The Junkers Ju 86 was a German monoplane bomber and civilian airliner designed in the early 1930s, and employed by both sides during World War II. The civilian model Ju 86B could carry 10 passengers. Two were delivered to Swissair and five to Luft Hansa...
|| 251—299
|-
| Potez
Potez
Potez was a French aircraft manufacturer founded as Aéroplanes Henry Potez by Henry Potez at Aubervilliers in 1919. The firm began by refurbishing war-surplus SEA IV aircraft, but was soon building new examples of an improved version, the Potez VII...
|| 301—340
|-
| Vickers
Vickers
Vickers was a famous name in British engineering that existed through many companies from 1828 until 1999.-Early history:Vickers was formed in Sheffield as a steel foundry by the miller Edward Vickers and his father-in-law George Naylor in 1828. Naylor was a partner in the foundry Naylor &...
|| 351—380
|-
| Hawker Fury
Hawker Fury
The Hawker Fury was a British biplane fighter aircraft used by the Royal Air Force in the 1930s. It was originally named the Hornet and was the counterpart to the Hawker Hart light bomber.-Design and development:...
and Hind
Hawker Hind
-See also:-Bibliography:* Crawford, Alex. Hawker Hart Family. Redbourn, Hertfordshire, UK: Mushroom Model Publications Ltd., 2008. ISBN 83-89450-62-3....
|| 401—420
|-
| Gloster Gladiator
Gloster Gladiator
The Gloster Gladiator was a British-built biplane fighter. It was used by the Royal Air Force and the Royal Navy and was exported to a number of other air forces during the late 1930s. It was the RAF's last biplane fighter aircraft and was rendered obsolete by newer monoplane designs even as it...
|| 451—499
|-
| Various (de Havilland DH-84 Dragon
De Havilland Dragon
|-See also:-References:Bibliography ISBN 0-85177-813-5...
, Caproni
Caproni
thumb|right|300px|[[Caproni Ca.316]] seaplane at its moorings.Caproni was an Italian aircraft manufacturer founded in 1908 by Giovanni Battista "Gianni" Caproni....
, etc.) || 501—549
|-
During World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
a large number of aircraft was interned and incorporated in the Aeronáutica Militar, forcing the use of serial numbers that had been assigned to aircraft meanwhile retired. This resulted in assignment of blocks starting to 510 and 600 to the Hawker Hurricane
Hawker Hurricane
The Hawker Hurricane is a British single-seat fighter aircraft that was designed and predominantly built by Hawker Aircraft Ltd for the Royal Air Force...
s. The 300 block series used before by the Potez 25
Potez 25
|-See also:*Aerial operations in the Chaco War-References:Heinonen, Timo Heinonen: Thulinista Hornetiin, Keski-Suomen ilmailumuseon julkaisuja 3, 1992. ISBN 951-95688-2-4.-External links:* *...
(retired) was reassigned to the new Supermarine Spitfire I
Supermarine Spitfire
The Supermarine Spitfire is a British single-seat fighter aircraft that was used by the Royal Air Force and many other Allied countries throughout the Second World War. The Spitfire continued to be used as a front line fighter and in secondary roles into the 1950s...
, P-38 Lightning
P-38 Lightning
The Lockheed P-38 Lightning was a World War II American fighter aircraft built by Lockheed. Developed to a United States Army Air Corps requirement, the P-38 had distinctive twin booms and a single, central nacelle containing the cockpit and armament...
and P-39 Airacobra. However, the Supermarine Spitfire V
Supermarine Spitfire
The Supermarine Spitfire is a British single-seat fighter aircraft that was used by the Royal Air Force and many other Allied countries throughout the Second World War. The Spitfire continued to be used as a front line fighter and in secondary roles into the 1950s...
received still during the war and afterwards, was given as an oddity the serial number block 1 to 95.
The 700 block series was assigned to the AT-6
T-6 Texan
The North American Aviation T-6 Texan was a single-engine advanced trainer aircraft used to train pilots of the United States Army Air Forces, United States Navy, Royal Air Force and other air forces of the British Commonwealth during World War II and into the 1950s...
and Harvard
T-6 Texan
The North American Aviation T-6 Texan was a single-engine advanced trainer aircraft used to train pilots of the United States Army Air Forces, United States Navy, Royal Air Force and other air forces of the British Commonwealth during World War II and into the 1950s...
s that were received from 1947. The Airspeed Oxford
Airspeed Oxford
The Airspeed AS.10 Oxford was a twin-engine aircraft used for training British Commonwealth aircrews in navigation, radio-operating, bombing and gunnery during the Second World War.-Design and development:...
was assigned the 500 block series which was also used by the de Havilland DH-84 Dragon
De Havilland Dragon
|-See also:-References:Bibliography ISBN 0-85177-813-5...
(504 to 506).
Alpha-numeric system
A special alpha-number serial system was assigned during World War II to some aircraft that were forced to land in Portugal and were ultimately interned and later incorporated in the Aeronáutica Militar. This system was used to six Consolidated Liberators, which were given the serials L-1 to L-6; the Lockheed Hudson, H-1 to H-3; and the Douglas C-47 DakotaC-47 Skytrain
The Douglas C-47 Skytrain or Dakota is a military transport aircraft that was developed from the Douglas DC-3 airliner. It was used extensively by the Allies during World War II and remained in front line operations through the 1950s with a few remaining in operation to this day.-Design and...
(D-1).
Independent numbering system
A independent numbering system was used in MozambiqueMozambique
Mozambique, officially the Republic of Mozambique , is a country in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west and Swaziland and South Africa to the southwest...
by the aircraft assigned to the Quartel General de Lourenço Marques (Army Headquarters at Lourenço Marques), in 1940s.
Serial numbers with one or two digits were given to these aircraft. For example, Tiger Moth 1 to 9, Hornet Moth 10, General Aircraft Monospar 15, Avro Anson 20 and 21, and Beechcraft Bonanza 25.
In 1946 these aircraft were transferred and assigned to the Unidade de Instrução Aeronáutica (Aeronautical Training Unit).
With the implementation of Regulation 13602 of July 11, 1951, these aircraft also received numbers in the new system, and in May 1952 some of them were transferred to the Portuguese Air Force.
Four digits system
With the Regulation 13602, of July 11, 1951, a new four digit system was introduced. This was a totally different system compared to the previous one and took time to be completely adopted.The Administrative Note 969 of June 8, 1951, of the 2nd Repartition stated that this new system was to be applied only to the following aircraft in the inventory: de Havilland Canada DHC-1 Chipmunk
De Havilland Canada DHC-1 Chipmunk
The de Havilland Canada DHC-1 Chipmunk is a tandem, two-seat, single-engined primary trainer aircraft which was the standard primary trainer for the Royal Canadian Air Force, Royal Air Force and several other air forces through much of the post-Second World War years...
, AT-6
T-6 Texan
The North American Aviation T-6 Texan was a single-engine advanced trainer aircraft used to train pilots of the United States Army Air Forces, United States Navy, Royal Air Force and other air forces of the British Commonwealth during World War II and into the 1950s...
, Harvard
T-6 Texan
The North American Aviation T-6 Texan was a single-engine advanced trainer aircraft used to train pilots of the United States Army Air Forces, United States Navy, Royal Air Force and other air forces of the British Commonwealth during World War II and into the 1950s...
, Junkers Ju 52
Junkers Ju 52
The Junkers Ju 52 was a German transport aircraft manufactured from 1932 to 1945. It saw both civilian and military service during the 1930s and 1940s. In a civilian role, it flew with over 12 air carriers including Swissair and Deutsche Luft Hansa as an airliner and freight hauler...
, Douglas C-47
C-47 Skytrain
The Douglas C-47 Skytrain or Dakota is a military transport aircraft that was developed from the Douglas DC-3 airliner. It was used extensively by the Allies during World War II and remained in front line operations through the 1950s with a few remaining in operation to this day.-Design and...
, SB-17, Douglas C-54 Skymaster
C-54 Skymaster
The Douglas C-54 Skymaster was a four-engined transport aircraft used by the United States Army Air Forces and British forces in World War II and the Korean War. Besides transport of cargo, it also carried presidents, British heads of government, and military staff...
. Although, later other aircraft already in service in 1951 received serials from the new system. It was the case of the Miles Magister
Miles Magister
-See also:-References:NotesBibliography* Amos, Peter. Miles Aircraft = The early years. Tonbridge: Air-Britain, 2009. ISBN 978 0 85130 410 6...
(12**), Airspeed Oxford
Airspeed Oxford
The Airspeed AS.10 Oxford was a twin-engine aircraft used for training British Commonwealth aircrews in navigation, radio-operating, bombing and gunnery during the Second World War.-Design and development:...
(21**), Avro Anson
Avro Anson
The Avro Anson is a British twin-engine, multi-role aircraft that served with the Royal Air Force, Fleet Air Arm and numerous other air forces prior to, during, and after the Second World War. Named for British Admiral George Anson, it was originally designed for maritime reconnaissance, but was...
(22**), and de Havilland DH-84 Dragon
De Havilland Dragon
|-See also:-References:Bibliography ISBN 0-85177-813-5...
(23**).
Naval Aviation
The first system used by the Portuguese Naval AviationPortuguese Naval Aviation
The Portuguese Naval Aviation , was the air branch of the Portuguese Navy until 1952, and is today the command of the Navy responsible for the operation of the aircraft on board their ships...
was a general sequential system. This system began being implemented in 1917 with the F.B.A hydroplanes, which consisted in the assignment of the natural numbering sequence (1,2,3, ...) to each aircraft type.
Unique sequential system
This new unique sequential system consisted in the assignment of serial numbers beginning at 1, but only in one series and to all aircraft in service, in way to prevent two different aircraft types of having the same serial number.In some cases, a second number was assigned to each aircraft to represent its position within the naval fleet, thus allowing an easier identification.
Alpha-numeric system
From 1943, during World War II, the Naval Aviation received aircraft from the United Kingdom, and after the last example of the sequential system (136) a new system was implemented.A serial consisting of two parts, being the first part a letter designating either the manufacturer or the primary mission of the aircraft, and the second part a number separated from the letter by a hyphen, and designating the aircraft order within the fleet.
|+ Serial number blocks
|-
! style="text-align: center; background: #aacccc;"|Aircraft type
! style="text-align: center; background: #aacccc;"|Serial
|-
| Beechcraft AT-11 Kansan
Beechcraft Model 18
The Beechcraft Model 18, or "Twin Beech", as it is better known, is a 6-11 seat, twin-engine, low-wing, conventional-gear aircraft that was manufactured by the Beech Aircraft Corporation of Wichita, Kansas...
,
Beechcraft D-18S
Beechcraft Model 18
The Beechcraft Model 18, or "Twin Beech", as it is better known, is a 6-11 seat, twin-engine, low-wing, conventional-gear aircraft that was manufactured by the Beech Aircraft Corporation of Wichita, Kansas...
|| BC-1 to BC-12
|-
| North American SNJ-4
T-6 Texan
The North American Aviation T-6 Texan was a single-engine advanced trainer aircraft used to train pilots of the United States Army Air Forces, United States Navy, Royal Air Force and other air forces of the British Commonwealth during World War II and into the 1950s...
|| I-1 to I-8
|-
| Curtiss SB2C-5 Helldiver
SB2C Helldiver
The Curtiss SB2C Helldiver was a carrier-based dive bomber aircraft produced for the United States Navy during World War II. It replaced the Douglas SBD Dauntless in US Navy service. Despite its size, the SB2C was much faster than the SBD it replaced...
|| AS-1 to AS-24
|-
| Bristol Beaufighter
Bristol Beaufighter
The Bristol Type 156 Beaufighter, often referred to as simply the Beau, was a British long-range heavy fighter modification of the Bristol Aeroplane Company's earlier Beaufort torpedo bomber design...
|| BF-1 to BF-17
|-
This system was used until 1952, when the Naval Aviation aircraft was integrated into the Portuguese Air Force, and the Air Force serial system was adopted.
Integrated system
In 1993, with the creation of the newly Esquadrilha de Helicópteros da Marinha (Navy's Helicopter Squadron), the AgustaWestland Super Lynx Mk.95Westland Lynx
The Westland Lynx is a British multi-purpose military helicopter designed and built by Westland Helicopters at its factory in Yeovil. Originally intended as a utility craft for both civil and naval usage, military interest led to the development of both battlefield and naval variants...
helicopter
Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...
s were assigned the serial numbers 9201 to 9205, in accordance to the regulations in use with the Air Force. However, when the Air Force integrated system was introduced in 1993 they also received the digit 1 before the assigned serials (becoming 19201 to 19205), and had the color of the serial number changed from black to white.
Air Force
The four digit system developed by the Army Military Aviation was inherited by the Air ForcePortuguese Air Force
The Portuguese Air Force is the air force of Portugal. Formed on July 1, 1952, with the Aeronáutica Militar and Aviação Naval united in a single independent Air Force, it is one of the three branches of the Portuguese Armed Forces and its origins dates back to 1912, when the military aviation...
. Seven basic functions for the aircraft in service were defined, which corresponded to the first digit in a four digit serial number. The second digit corresponded to a specific aircraft model, and the two remaining were assigned in sequence.
|+ First digit and function correspondence
|-
! style="text-align: center; background: #aacccc;"|First digit
! style="text-align: center; background: #aacccc;"|Function
|-
| 1 || Single engine training
|-
| 2 || Multi-engine training
|-
| 3 || Reconnaissance and/or observation
|-
| 4 || Fighter or anti-submarine aircraft (Piston engine)
|-
| 5 || Fighter (Jet engine)
|-
| 6 || Transport
|-
| 7 || Search and rescue or bomber (Piston engine)
|-
| 8 || Reserved
|-
| 9 || Miscellaneous
|-
The complete revision of the serial numbers applied to the whole inventory was only completed by 1958. Even then, some aircraft coming from the Naval Aviation, never received correct serial numbers within this system.
On August 5, 1969, the Direcção de Serviço de Material (Directorate of Material Service) new rules introduced some slight changes in the system. Basically the meaning of the first digit, the type, represented from then on a mix between the function/mission and type/class of aircraft. This was intended to solve the shortage of available serial numbers and the introduction of new types of aircraft.
|+ First digit and type correspondence
|-
! style="text-align: center; background: #aacccc;"|First digit
! style="text-align: center; background: #aacccc;"|Type
|-
| 1 || Single engine training
|-
| 2 || Multi-engine training
|-
| 3 || Reconnaissance and/or observation
|-
| 4 || Fighter or anti-submarine aircraft (Piston engine)
|-
| 5 || Fighter (Jet engine)
|-
| 6 || Transport (Piston engine)
|-
| 7 || Search and rescue or bomber (Piston engine)
|-
| 8 || Multi-engined jet (except fighters)
|-
| 9 || Miscellaneous
|-
The B-26 Invader
A-26 Invader
The Douglas A-26 Invader was a United States twin-engined light attack bomber built by the Douglas Aircraft Co. during World War II that also saw service during several of the Cold War's major conflicts...
s were the first type to receive serials (7101 to 7107).
On December 22, 1988, a study by the Air Force Headquarters 3rd Division was created with the intent of updating the serial system concept, thus correcting some deviations that had happened since the implementation of the 1951/1969 system.
The most important of these deviations had been:
- Vought A-7P Corsair II: Received serial numbers in the range 5501 to 5550, not being fighters.
- Lockheed P-3P OrionP-3 OrionThe Lockheed P-3 Orion is a four-engine turboprop anti-submarine and maritime surveillance aircraft developed for the United States Navy and introduced in the 1960s. Lockheed based it on the L-188 Electra commercial airliner. The aircraft is easily recognizable by its distinctive tail stinger or...
: Received serial numbers in the range 4801 to 4806, which corresponded to fighters with piston engines. - Alexander Schleicher ASK 21: Received the serial numbers 1001 to 1004, being a sailplane/glider.
This new system would be a compromise between the existing system and the needs arising from the automatic treatment of information. However, the defined criteria would force the change of all serial numbers in the Air Force aircraft inventory, and the changes were not approved.
|+ First digit and type correspondence
|-
! style="text-align: center; background: #aacccc;"|First digit
! style="text-align: center; background: #aacccc;"|Type/class
|-
| 1 || Sailplanes (gliders) with or without engine
|-
| 2 || Conventional aircraft, single engine
|-
| 3 || Conventional aircraft, multi-engine
|-
| 4 || Turboprop aircraft, single engine
|-
| 5 || Turboprop aircraft, multi-engine
|-
| 6 || Jet aircraft, single engine
|-
| 7 || Jet aircraft, multi-engine
|-
| 8 || Helicopters, single engine
|-
| 9 || Helicopters, multi-engine
|-
Nevertheless, some serial numbers using this system were applied to aircraft bought in the meantime. It was the case of the Dassault Falcon 50
Dassault Falcon 50
|-See also:-References:* Taylor, John W R. . Jane's All The World's Aircraft 1988-89. Coulsdon, Surrey, UK:Jane's Information Group. ISBN 0-7106-0867-5.-External links:* *...
(74**), Westland Lynx
Westland Lynx
The Westland Lynx is a British multi-purpose military helicopter designed and built by Westland Helicopters at its factory in Yeovil. Originally intended as a utility craft for both civil and naval usage, military interest led to the development of both battlefield and naval variants...
(92**), and the Lockheed F-16 Fighting Falcon
F-16 Fighting Falcon
The General Dynamics F-16 Fighting Falcon is a multirole jet fighter aircraft originally developed by General Dynamics for the United States Air Force . Designed as an air superiority day fighter, it evolved into a successful all-weather multirole aircraft. Over 4,400 aircraft have been built since...
(66**).
On January 1, 1994, the Sistema de Atribuição de Números de Matrícula (Serial Number Assignment System) was established, adding a fifth digit to the serial.
- 1st digit — Series: It was decided that aircraft not in service at the implementation date would remain in the series 0, thus maintaining in consequence the four digit serial number as before. Thus using the first digit 0 only for data systems handling, and never being displayed in the aircraft. Aircraft in service would received the digit 1.
- 2nd digit — Type: The second digit is associated to the basic function of the aircraft.
- 3rd digit — Manufacturer/model: Aircraft fleets of the same model.
- 4th and 5th digits — Sequential number of the same aircraft model.
|+ Second digit and function association
|-
! style="text-align: center; background: #aacccc;"|Second digit
! style="text-align: center; background: #aacccc;"|Function/mission
|-
| 0 || Aircraft without engine
|-
| 1 || Training single engine and sailplanes/gliders with engine
|-
| 2 || Training multi-engine
|-
| 3 || Liaison and/or reconnaissance
|-
| 4 || Maritime patrol and bombers
|-
| 5 || Fighters and fighter-bombers
|-
| 6 || Transport
|-
| 7 || Support and specials
|-
| 8 || Reserved
|-
| 9 || Helicopters and miscellaneous
|-
The implementation of this system forced the following changes:
- Alexander Schleicher ASK 21 from 1001—1004 to 10101—10104
- Dassault Falcon 20Dassault Falcon 20The Dassault Falcon 20 is a French business jet and was the first of a family of business jets built by Dassault Aviation.-Design and development:...
from 8101—8103 to 17101—17103 - Lockheed F-16A Fighting FalconF-16 Fighting FalconThe General Dynamics F-16 Fighting Falcon is a multirole jet fighter aircraft originally developed by General Dynamics for the United States Air Force . Designed as an air superiority day fighter, it evolved into a successful all-weather multirole aircraft. Over 4,400 aircraft have been built since...
from 6601—6617 to 15101—15117 (this change occurred before delivery) - Lockheed F-16B Fighting FalconF-16 Fighting FalconThe General Dynamics F-16 Fighting Falcon is a multirole jet fighter aircraft originally developed by General Dynamics for the United States Air Force . Designed as an air superiority day fighter, it evolved into a successful all-weather multirole aircraft. Over 4,400 aircraft have been built since...
from 6618—6620 to 15118—15120
See also
- Portuguese Naval AviationPortuguese Naval AviationThe Portuguese Naval Aviation , was the air branch of the Portuguese Navy until 1952, and is today the command of the Navy responsible for the operation of the aircraft on board their ships...
- Portuguese Air ForcePortuguese Air ForceThe Portuguese Air Force is the air force of Portugal. Formed on July 1, 1952, with the Aeronáutica Militar and Aviação Naval united in a single independent Air Force, it is one of the three branches of the Portuguese Armed Forces and its origins dates back to 1912, when the military aviation...
- UALEUALEThe Army Light Aviation Unit , initially known as Army Light Aviation Group , is the Portuguese Army's unit dedicated to missions of light aviation, being integrated in the Army Forces System, under the operational command of the Ground Forces Operational Command .- Mission :* Organize, train and...
- List of aircraft of the Portuguese Air Force
- United States military aircraft serialsUnited States military aircraft serialsIn the United States, all military aircraft display a serial number to identify individual aircraft. Because these numbers are located on the aircraft tail, they are sometimes referred to unofficially as "tail numbers"...
- United Kingdom military aircraft serialsUnited Kingdom military aircraft serialsIn the United Kingdom to identify individual aircraft, all military aircraft are allocated and display a unique serial number. A unified serial number system, maintained by the Air Ministry , and its successor the Ministry of Defence , is used for aircraft operated by the Royal Air Force , Fleet...
- Japanese military aircraft designation systemsJapanese military aircraft designation systemsThe Japanese military aircraft designation systems for the Imperial period are rather difficult to keep track of, primarily because multiple designation systems were in use by each armed service...
- Portuguese aircraft serials