Roger Adam Aircraft Projects ?

[hesham]

Hi,

we know Roger Adam,he was a French designer,and after WWII,he built
RA-14,RA-15 and RA-17,and I discovered this RA-20 Randonneur,but
remained RA-16,RA-18 & RA-19 a mysteries ?.

From Ailes 6/1954

https://www.aviafrance.com/constructeur.php?ID_CONSTRUCTEUR=1497

 

[Apophenia]

Good find hesham! I've added your RA 20 Randonneur to my list of Établissements aéronautiques Roger Adam designations (attached). One designation oddity that pops up is the supposed one-off glider design 'RA 105'. Wikipedia lists the civil registration F-BBGF for this 'RA 105' which conflicts with a Bristol 170 Mk 31 Freighter. My best guess is that this 'RA 105' is simply a misreading/garbling of thedesignation RA 10 S.

In a 1999 list of gliders, Répertoire des Planeurs, André Lambert also listed RA 1-RA 3, RA 7-RA 9, and RA 12-RA 13 but without giving much in the way of details.
-- https://web.archive.org/web/20110203020554/http://am44.ifrance.com/planeurs/PLANEUR9.HTM

Établissements aéronautiques Roger Adam Aircraft Designations

RA 1 -- 1933 training glider, 1 x built, no other details

RA 2 -- 1934 training glider, 1 x built, no other details

RA 3 -- 1935 school/elementary training glider, 1 x built
- RA 3: AVIA 11A type but w/ 3-part, bolted fuselage beam
-- Intended as a French rival for the DFS Zögling

RA 4-RA 5 -- (??)

RA 6 -- 1936 2-seat tandem low-winged tourer, 1 x built
- RA 6: 1 x (??) hp (3-cyl radial?), rectangular wing plan
-- Listed a Roger Adam's first powered aircraft design

RA 7 -- (Project) 1936* 2-seat cabin touring glider
-- * Other source lists 1945, poss. design vs build dates?

RA 8 -- (Project) 1937 glider, no details

RA 9 -- (Project) 1938 glider, no details

RA 10 - 1938 'Radis' shoulder-winged, single-seat training glider, x 2
- RA 10: 1938 school glider prototype, untapered wings, span 8.15/8.45 m*
-- * Sources vary, either measurement could be a misreading of the other
-- http://claudel.dopp.free.fr/Les_planeurs/Descriptions_planeurs/Adam_RA-10/Adam_RA-10.htm
-- https://www.j2mcl-planeurs.net/dbj2mcl/planeurs-machines/planeur-fiche_0int.php?code=14
- RA 10 S: 1942/1943** development with sailplane wings, span 11.65 m
-- ** André Lambert dated RA 10 S (listed as 'RA-10s') to 1945
-- https://www.j2mcl-planeurs.net/dbj2mcl/planeurs-machines/planeur-fiche_0int.php?code=2180
- RA 10(?): 1972 amateur motor-glider, 1 x Solo engine w/ pusher prop
-- http://www.retroplane.net/forum/images/uploads/ClaudeL/RA-10_APPARAT_848.jpg

RA 11 - (??)

RA 12 - (Project) 1939* training glider, span 11.65 m
-- * [1]Trait d'Union[/i] 127 lists a date of 1944
-- https://www.secretprojects.co.uk/threads/adam-little-known-gliders-and-projects.23631/#post-349534

RA 13 - (Project) 1949 glider, no details

RA 14 - 1946 Loisirs (Leisure/Pastime) high-wing tandem tourer, x 31
- RA 14 : 2-seater sold in kit form to amateur builders
- RA 14 : 1946 prototype, 1 x 40 hp Train, 65-90 hp engines planned
- RA 14 : 1 x tractor 65 hp Continental A65 HO4, span 10.90/11.40 m, x 29
- RA 14 A: 1 x built, unknown modifications
- RA 14 S: Ply-covered fuselage + other RA 15 features, 1 x built
- RA 14 SL: 'Super Loisirs', mod. wing/tail w/ trim tabs
- RA14 : 1957 Canadian-licensed Bernie Maranda* Loisirs kits
-- * Maranda Aircraft Company Limited of Montreal bought rights
- RA14BM1: 1961 Maranda 'Super Loisirs', x ~30 kits built
-- Falconar AMF-S14 Super Maranda, 1961 deriv.,** 150 hp Lycoming
-- ** Maranda signed prod'n agreement with Falconar, c. 1959-60

RA 15 - 1947 Major improved constr. RA 14 devel./deriv., x 4
- RA 15 : Ply-covered fuselage, enlarged tail, improved systems, x 2
- RA 15 : 1 x 75 hp Régnier 4D.2* inv'd 4-cyl., span 10.90 m, x 2
-- * Many sources list powerplant as a 70 hp Régnier '4D3' (sic)
- RA-15/1: 1 x 75 hp Continental C75 HO4, aka 'RA-151', 2 x built**
-- ** RA 17 01 was a modification of RA 15/1 02 (F-PFKD)
-- ** 1000aircraftphotos.com lists 65 hp Continental A65 engine
-- https://1000aircraftphotos.com/Contributions/VanTilborg/11542.htm

RA 16 - (Project) 194? 3-seater (RA 14/RA 15 derivative?)

RA 17 - 1949 agricultural a/c conversion of RA 15 airframe, x 1
- RA 17: Crop spraying kit under wings + fuselage chemical hopper
- RA 17: RA 15/1 02, F-PFKD, mod. into single-seat Ag a/c RA 17 01

RA 18-RA 19 - (??)

RA 20 - (Project) 1954 Randonneur (Rambler) tourer/light a/c
- RA 20: Side-by-side 2-seater, cantilever wing, mixed constr'n
- RA 20: 1 x 65-to-90 hp Continental HO4 engine, span (??) m

RA 105: Probably just typo/confusion with RA 10 S designation

________________________

 

[hesham]

From Aviation Magazine 1963,

RA-16 was a three seat Project version of RA-14

and as in article,I suggest that;

RA-18 was a four seat Project version of RA-14

RA-19 was all metal Project version of RA-14

https://www.secretprojects.co.uk/threads/adam-little-known-gliders-and-projects.23631/

 

[Apophenia]

Many thanks hesham ... details added from both sources.

The 4-seater and metal construction projects are very intriguing indeed. No real evidence, of course, but they may well be our 'missing' RA 18 and RA 19 designations!

About the RA 16, was it being a projected RA 14 derivative also your supposition? Makes sense but I've fudged and listed it as "(RA 14/RA 15 derivative?)". However, if you have a source, that can be easily corrected.

 

[hesham]

Thank you dear Apophenia,

and I think this picture was for RA-6,and as TU magazine,they never
mentioned they were a gliders,maybe an airplanes ?.

 

[Apophenia]

...and I think this picture was for RA-6,and as TU magazine,they never
mentioned they were a gliders,maybe an airplanes ?.

Thanks hesham ... obviously a power light aircraft. Looks like it might have had an Anzani Y-3 fan engine?

Perhaps you could correct your original entry on the Adam Little Known Glider and Projects page?
-- https://www.secretprojects.co.uk/threads/adam-little-known-gliders-and-projects.23631/#post-240252

 

[fortrena]

If I may, one of the first, if not the first Canadian aircraft manufacturer specializing in the design and production of airplanes and of airplane kits for homebuilders was located in Montréal, Québec. Maranda Aircraft, a company founded in the 1950s by Bernard C. “Bernie” Maranda, acquired the (worldwide?) production rights for the Adam RA-14 Loisir and RA-17. The small company marketed them under new names, Loisir BM14 and BM3. A Super Loisir BM1 made its appearance in 1961. About thirty of these aircraft flew over the years. Maranda Aircraft subsequently acquired the production rights for a few additional aircraft. Around 1959-60, it signed an agreement with Falconar Aircraft Maintenance of Edmonton, Alberta, to allow the latter to manufacture the Loisir and Super Loisir in kits.

 

[burunduk]

In JAWA 1963-64 p.23 Maranda BM5 Falcon aircraft was mentioned: "cantilever two-place monoplane under development".

Doesn't somebody know its fate?

Thank you in advance.

 

[hesham]

In JAWA 1963-64 p.23 Maranda BM5 Falcon aircraft was mentioned: "cantilever two-place monoplane under development".

Doesn't somebody know its fate?

Thank you in advance.

From JAWA 1966.