Here is a list of all known Potez designations. If I missed something out or made a mistake, please let me know so I can update the list accordingly. Thanks to AM for providing a lot of the information therein.
Société d'études aéronautiques (SEA)
Created in 1916 by Henry Potez, Marcel Bloch and R. Lévy-Finger, with Louis Coroller as main designer.
SEA I observation two-seater
SEA II two-seat reconnaissance and fighter aircraft that did not fly
SEA III three-seat reconnaissance aircraft which did not fly
SEA IV biplane two-seat fighter SEA IV C2 observation two-seater (also Potez IV reconnaissance two-seater)
Aéroplanes Henry Potez
Founded by Henry Potez in Aubervilliers in 1919. The company moves to Levallois in 1921. Louis Coroller still designs most aircraft. A new factory opens in Meaulte in 1925. Another one eventually opens in Berre. The company is eventually absorbed by SNCAN (later Nord Aviation) in 1936 but the designs keep the name Potez.
VII passenger transport aircraft based on SEA IV
VIII tourism aircraft VIIIA tourism aircraft VIII tourism floatplane aircraft VIII two-seat tourism aircraft
IX light passenger plane
XA three-engined colonial passenger aircraft XB three-engined military transport aircraft
XI two-seat fighter
XII reconnaissance aircraft
XIV 3-engined postal biplane
XV reconnaissance-bomber XV HO2 observation seaplane variant
XVI single-seat fighter project
XVII experimental long-range postal/liaison aircraft derived from Potez XV
XVIII three-engined passenger plane
XIX three-engined night bomber (also found as Potez 19 Bn2)
XX four-engined three-seat bomber version of P.XVIII
XXI multi-engined transport aircraft
XXII passenger transport aircraft
24 A2 reconnaissance aircraft (also as XXIV A2)
25 short-range reconnaissance aircraft 25 GR "grand raid" aircraft 25.12 short-range reconnaissance aircraft 25.23 raid aircraft 25.44 short-range reconnaissance aircraft 25 TOE reconnaissance and bombardment two-seater aircraft
27 observation/reconnaissance aircraft
28/2 distance record aircraft 28M distance record aircraft
29-2 transport aircraft 29-4 passenger transport aircraft 29-6 passenger transport aircraft 29-8 passenger transport aircraft 29-11 record aircraft
31 night fighter based on Potez 25
32 passenger transport aircraft
33 general purpose (observation/transport) version of Potez 32
34 distance record aircraft (Farman and Hispano-powered)
39 observation two-seater aircraft 39H 390 short-range reconnaissance aircraft and light bomber, production version of Type 39 391 short-range reconnaissance aircraft, production version of Type 39 391bis observation floatplane variant 39-10 reconnaissance aircraft 392 short-range reconnaissance aircraft 393 short-range reconnaissance aircraft
40 colonial police aircraft 400 three-engined multipurpose colonial military transport
56 transport/recce/observation aircraft 56E carrier-borne reconnaissance aircraft 560T passenger plane 561 version of the Type 560 (3 built) 565 version of the Type 560 with a streamlined fuselage (one built and flown in Jan. 36) 566 observation aircraft 567 target tow aircraft 568 training aircraft
58 three-seat tourism/training aircraft 580 tourism aircraft 584 version of Type 580 (1935 - 4 built) 585 liaison aircraft 586 version of Type 580 (10 built)
60 tourism/training aircraft 600
62 civilian passenger transport 620 civilian passenger transport 621 civilian passenger transport
63-11 three-seat observation/recce aircraft 630 heavy fighter 631 heavy fighter 632 conversion of the 630 prototype as a night fighter 633 light bomber 636 version of the 630 produced under licence by Avia in Czechoslovakia 637 reconnaissance aircraft 639 reconnaissance version of the 630 (1 built)
65 military transport 650T16 military transport based on Potez 620
660 passenger transport aircraft 661 four-engined passenger transport aircraft 662 four-engined passenger transport aircraft
670 two-seat heavy fighter 671 two-seat heavy fighter
68 twin-engined low-mid-wing project
700 twin-engined two-seat heavy fighter 702 twin-engined heavy fighter 703 projected variant of 702 705 projected variant of 702
371: 4 built
390: production version of 39.
391: production version of 39.
502: version of the 50. One built.
561: Version of the 560. Three were built.
565: Version of the 560 with a streamlined fuselage. One was built and flew in January 1936
584: version of 580. Four were built in 1935..
586: version of 580. 10 built.
632: Conversion of the 630 prototype as a nightfighter.
636: Version of the 630 produced under licence by Avia in Czechoslovakia.
639: Reconnaissance version of the 630 of which one was built.
890: Twin engined civilian version of the 840 which was not built. Also known as model 89.
I also believe that the following CAMS designs were designated as Potrez with the same numbers.
68 twin-engined low-mid-wing project.
703 & 705 developed from 702
90 high speed light transport aircraft,based on 75
92 single seat twin engined jet strike and close-support project
and the engines was mounted above the rear of the fuselage
in a new shape,it was designed to compete Breguet Br.121.
A bit more detail on Potez 63 variant designations ...
The Potez 63 was designed to meet the Service technique aéronautique (STAé) Programme Technique C3 (Triplace de Chasse) requirement of Oct 1934. Work began (led by engineers Coroller and Delaruelle) in April 1935 with a prototype flying one year later. A contract was received in May 1937 for 10 examples in fighter, night fighter, conversion trainer, light bomber, army co-operation, and attack aircraft configurations.
Potez 63 series designations followed the French pattern of applying numbers to the end of the type designation to indicate major design changes. In some cases, those designation changes were the result of different engine types being employed. More often, designation changes indicated the application of different mission-specific equipment.
Armée de l'Air (AdA) designations built on the manufacturer's form. To that maker's designation was added letters signifying role and numbers for crew -- so a Potez 630 C3 was of the first 63 series variant and a Triplace de Chasse (or three-seat fighter). Ada role abbreviations applied to Potez 63 series variants were as follows:
A --- Armée (Army co-operation)
AB -- Assaut-Bombardement (Attack Bomber)
B --- Bombardement (Bomber)
Bp -- Bombardement en Piqué (Divebomber)
C --- Chasse (Fighter)
CN -- Chasse de Nuit (Night Fighter)
Ins - Instruction (Conversion trainer)
T --- Travail (General Purpose)
No 'P' for Postale designation seems to have been applied to two Potez 63s modified as air mail carriers and transfered to Société Anonyme Air Bleu in late 1938. These aircraft are usually listed as 630s (although Golden Years lists F-ARIR as Potez 637 c/n 21 - possibly a conversion of Potez 630 c/n 1).
Potez appended country names to export variants, eg: Potez 633 Grec, 633 Roumain, and 63 (or 633) Franco-Roumain (for airframes begun for the AdA but completed for FARR). But I've seen no reference to a 'Potez 631 Finnois'. This style was also applied to at least two demonstrator aircraft -- the Potez 630 Suisse. Yet no such labels seem to have been added to the Yugoslav 630 demonstrator (F-AREY).
The planned Czech-licensed Potez 631 received a distinct type designation - Potez 636. However, there seems to be no record of a separate designation for planned licensed Mitsubishi 631 (to Spec 13-shi for a 3-seat, twin-engine fighter-bomber). Possibly the 'missing' Potez 638 designation was applied to this proposed Japanese variant?
There is some confusion over prototype Potez 63 designations. Was the first prototype Potez 63.01 simply redesignated Potez 630.01 (after one of its many engine changes, perhaps)? Or, as some sources claim, was the Potez 630.01 a second prototype? Can anyone clear this up?
Further confusion surrounds the Potez 631 Ins and Potez 634 dual-control trainers. Did the ten Potez 631 Ins (taken from early Potez 631 production) obviate the need for the Potez 634? Or are, as some source claim, the Potez 631 Ins and Potez 634 one and the same?
Potez 63 Series
Potez 63 - Multi-seat fighter, first flown April 1936
- Potez 63: (As planned) 2 x 450 hp Potez 12D HO-12s*
-- * The air-cooled engined were to buried in the wings
- Potez 63.01: (As built) 1st prototype, 2 x HS 12Hbs**
-- ** 580 hp Hispano-Suiza 12Hbs 14-cyl 2-row radials
- Potez 63.01: (Re-engined) 2 x HS 12Ab 02/03 radials
- Potez 63.01: (Re-engined) 2 x HS 12Ab 10/11 radials
-- NB: Potez 63.01 later redesignated as Potez 630.01
Potez 630 - Series fighter with Hispano-Suiza 14 engines
- Potez 630.01: Redesignated 1st fighter prototype*
-- * Some sources list Potez 630.01 as 2nd prototype
- Potez 630 C2: AdA desig., [?? Project only ??]
- Potez 630 C3: AdA desig., 2 x 700 hp HS 12Ab 10/11
- Potez 630 CN2 No.01: Night-fighter prototype, x 1
Potez 631 - Series fighter with Gnome-Rhone 14M Mars
- Potez 631.01: 2nd prototype, 2 x 700 hp GR 14M
- Potez 631 C3: 2 x 700 hp GR 14M 04/05 radials
- Potez 631 Ins: Potez 630 trainer conv'n (GR 14Ms)
Potez 633 B2 - 1937 light bomber derivative, 2 x GR 14M
- Potez 633.01: 1st prototype, 1937
- Potez 633 B2: 125 ordered, canc. after prod. begun
- Potez 633 Roumain: x 20 for Romanian Air Force
- Potez 633 Grec : x 24 for Greek Air Force
- Potez 633 Franco-Roumain: x 20* for Romania**
-- * 19 retained by the Armee de l'Air, 1939
-- ** Completed from canc. Armee de l'Air order
-- Undelivered Potez 633: China, Finland
Potez 634 - [Project] Potez 630 dual-control trainer
-- Some sources say Potez 634 and 631 Ins were same
Potez 635 - [Project] Night fighter deriv. (cancelled)
- Potez 635 CN2: 2 x +20° 20mm HS-9 or HS-404 cannon
30 was a two-seat fighter Project (C.2),developed from Potez-25
44 was a four-seat tourist airplane Project,powered by one engine
46 was a four engined flying boat Project
47 was a single seat fighter Project
48 was an unknown Project
52 was a twin engined flying boat Project
55 was an unknown Project
57 was a flying boat or seaplane Project
59 was a two-seat fighter Project (C.2)
61 was a four-seat tourist airplane Project
64 was a four-seat airPlane Project,developed from Type-63,with retractable landing gear