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Max Holste aircraft

c460

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Hi,
Here are the aircraft designed by Max Holste. The main sources are the book Les avions Max Holste by Delarue, and the articles by Claveau in Trait d'Union no.215 (and 218).

Before 1945
  • Two-seat tourer Name unknown, monoplane with 95 hp engine. Construction started in 1934, was unfinished by lack of funds.
  • Single-seat "racer" (perhaps MH.10) Name MH.10 is mentioned in Trait d'Union no.218, citing an older article by Bardou. Wooden monoplane with Régnier 95 hp engine. Construction perhaps started. (In Les Ailes 22 June 1939, Max Holste says that before the MH.20 he built two aircraft that did not fly.)
    http://www.secretprojects.co.uk/forum/index.php/topic,21382.0.html
  • MH.20 All metal racer. Initial project with Béarn 12 A engine. One example built with Régnier 12 Hoo, first flight on 25 July 1941. In Les Ailes 22 June 1939, Max Holste says that this was his twentiest design.
    http://www.secretprojects.co.uk/forum/index.php/topic,21382.0.html
  • Push-pull fighter Name unknown, project only.
    http://www.secretprojects.co.uk/forum/index.php/topic,18614.0.html
  • Trainer derivative of the MH.20 Name unknown, project only. Not sure if one or two seats.
    http://www.secretprojects.co.uk/forum/index.php/topic,18622.0.html
  • H.20 PE1 Glider for advanced training, project only, ca.1940.
    http://www.secretprojects.co.uk/forum/index.php/topic,18296.0.html
  • H.20 P1 High performance glider, one example built in 1943, never flew.
    http://www.secretprojects.co.uk/forum/index.php/topic,18296.0.html
  • Farman replica Replica of a Farman HF.3, made in 1942 for a movie.
  • S.25 Experimental sports aircraft, all magnesium construction, Train 6D engine, 76 hp. One example built in 1943, perhaps unfinished, never flew.
    http://www.secretprojects.co.uk/forum/index.php/topic,22119.0.html
  • MH.30 Single-seat light aircraft, AVA engine, ca. 30 hp. Project only.
    http://www.secretprojects.co.uk/forum/index.php/topic,22119.0.html

After 1945
  • MH.50 Two-seat tourer, Mathis G.4 R 95-100 hp engine. Project only, 1944.
  • MH.52 Two-seat training and tourism aircraft, first flight on 23 July 1945. 12 aircraft built in two versions:
    - MH.52 R with Renault 4 Pei 140 hp, five examples
    - MH.52 G with DH Gipsy Major 120 hp, seven examples
    - Aircraft no.02 was tested for some time with a Mathis G.7 R 175 hp radial engine.
    - A version with Lycoming 200 hp was studied.
  • MH.53 Three-seat derivative of the MH.52 with tail-wheel undercarriage. One example only, DH Gipsy Major engine (MH.53 G).
  • MH.60 Twin engine four-seater, two 165 hp engines. Project only. A cabin mock-up was started but not finished.
  • MH.100 Three-seat military trainer, derivative of the MH.53. Project only.
  • MH.150 Utility aircraft, high-wing monoplane. Project only.
  • MH.152 Military observation aircraft evolved from the MH.150. One example built, first flight on 12 June 1951.
  • MH.153 Modification of the MH.152 as a testbed for the Turbomeca Astazou turboprop engine.
  • MH.1521 Broussard Utility aircraft with PW R-985 engine, series produced. First flight on 17 December 1952. 378 examples built in two main versions:
    - military version MH.1521 M
    - civilian version MH.1521 C
    - various aircraft were tested with crop spraying devices for agricultural use (MH.1521 A)
    - an armed version with underwing rockets was planned too
  • MH.1522 ADAC Modification of MH.1521 no.10 with hypersustentation devices for improved STOL capacity.
  • Turbo Broussard Proposed derivative of the MH.1521, with Turbomeca Astazou turboprop. Project only.
  • MH.250 Super Broussard Light transport aircraft, high-wing monoplane with two PW R-1340 S3H1-G 600 hp radial engines. One prototype built, first flight on 20 May 1959. A version was briefly proposed with Wright R-1300 engines, 800 hp.
  • MH.260 Super Broussard Evolution of the MH.250, with two Turbomeca Bastan III, later Bastan IV, turboprop engines. One prototype and nine preseries aircraft built, first flight on 29 July 1960.
  • MH.261 Military derivative of the MH.260, with cargo loading ability. The first configuration had two half-doors. Other configurations were later studied, with pivoting rear fuselage or with an articulated cargo ramp, and a partial mock-up was built.
  • MH.261 B Variant of the MH.261 studied by Nord Aviation, with RR RB-162 auxiliary jet engines placed behind the main engines.
  • MH.262 Pressurized version of the MH.260. Development was taken over by Nord Aviation, and it became the N.262.
  • MH.270 Version of the MH.260 with Bristol Siddeley P.182 turboprop engines. Project only. (Source: Flight 27 March 1959.)
  • MH.280 Version of the MH.260 with Lycoming T-53 turboprop engines. Project only. (Source: Flight 27 March 1959.)
  • MH.300 Broussard Major STOL high-wing monoplane, smaller than the MH.250/260. Two Continental GTS.IO-520 390 hp engines. Project only.
  • MH.350 Broussard Major Evolution of the MH.300 with two Continental G.IO-470 A, 315 hp. A full scale mock-up was built.
  • MH.360 Evolution of the MH.350 briefly considered for Brazil.
  • MH.500 Phénix IV Autogyro, 4-5 seats, Lycoming O-540 A, 250 hp. Project only.

Max Holste later designed the Brazilian PAR-6504, started in 1965 at the Instituto de Promoção do Desenvolvimento, which became the Embraer EMB-100 Bandeirante (military YC-95).
His last project was a twin-engine aircraft for Brazil, in the 1970s (designation unknown).

Adrien
 

hesham

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Great work my dear C460,


and we should not forget the MH-270 and MH-280,and but may be they were a
projects only;


http://www.secretprojects.co.uk/forum/index.php/topic,778.msg18158.html#msg18158
 

c460

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hesham said:
and we should not forget the MH-270 and MH-280,and but may be they were a
projects only;

Hi Hesham,
I've added those, but I've asked about the source for the names on the other thread, because these names are not used in the book by Delarue.
Adrien
 

hesham

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My dear C460,


the two projects are mentioned in Flightglobal,and may be that's a drawing
to one of them;


http://www.flightglobal.com/pdfarchive/view/1959/1959%20-%200880.html?search=MH.270
 

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Jemiba

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That article actually mentions the MH.270/280 as MH.260 derivatives, hesham is right.
Those designations just are somewhat out of the line of standard practice, I think, as
minor modificatons were usually marked by a change on the last digit only, or for Max
Holste aircraft, with an additional suffix. And engine changes are explicitly mentioned
as being minor modifications in that design only.
But nobody said, of course, that aircra´ft designations always are following logical rules !
 

hesham

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That's right my dear Jemiba,


and during the next days,I will proof to you and all members,that the books which speak about
companies history are not the true measure for all firms designations,you will find many projects
never mention in those companies's books.
 

c460

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Thank you for the source, I've updated the information.
Adrien
 

c460

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Added mention of one last project, name unknown, and fixed mistake about the MH.50 engine.
 
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