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TsAGI helicopters and autogyros

kampfflieger

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This is prototype of fighter autogyro built by TsAGI in 1936. Armament is 1 ShKAS 7,62 MG. Top speed is 245 km/h.
 

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kampfflieger

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Teoretically the top speed might be 300 km/h like biplane fighter. Polikarpov's plans were given to designers and the front part of fuselage really looks like Polikarpov's fighters. The back part of it was designed from the beginning.
 

Apophenia

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Jemiba said:
There seems to be plenty of information in this article, but sorry, I can't read russian.
Seems to be based on the I-16 Rata, but my main question is the reason behind it. A
top speed of 245 km/h would have been hardly enough for a fighter of that era and I
can't think, that agility alone would have secured survival. ???

If the I-16 Type 4 and A-12 are compared from roughly the same angle, the similarities seem pretty superficial. Most single radial-engined Soviet aircraft of that period seem to resemble the early Polikarpov fighters, as kampfflieger said.
 

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J

joncarrfarrelly

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The A-12 is covered in Peter Brooks 'Cierva Autogyros', page 266 - 268.
While it superficially resembles the I-16 in general appearance, structurally it has more in common with a Gee-Bee. ;D

The hoped for max speed was to be 333km/h (207mph) at 2,300 m (7,500 ft), with a minimum speed of 39km/h (24 mph) at 1000 m (3,300 ft) and a ceiling of 7,500 m (24,600 ft). The actual performance attained was 246 km/h (153 mph) at 2,200 m (7,200 ft) down to 51 km/h (32 mph at 900 m (3,000 ft). Maximum altitude attained was 5,600 m (18,200 ft). It was felt that a max speed of 300 km/h (186 mph) was attainable. The aircraft crashed on May 23, 1937 when a rotor blade detached due to a fatigue fracture of the blade spar. The pilot, I. Kozyrev, was killed. The aircraft was powered by a Wright Cyclone F-3.

Jon
 

Apophenia

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joncarrfarrelly said:
The A-12 is covered in Peter Brooks 'Cierva Autogyros', page 266 - 268.
While it superficially resembles the I-16 in general appearance, structurally it has more in common with a Gee-Bee. ;D

The hoped for max speed was to be 333km/h (207mph) at 2,300 m (7,500 ft), with a minimum speed of 39km/h (24 mph) at 1000 m (3,300 ft) and a ceiling of 7,500 m (24,600 ft). The actual performance attained was 246 km/h (153 mph) at 2,200 m (7,200 ft) down to 51 km/h (32 mph at 900 m (3,000 ft). Maximum altitude attained was 5,600 m (18,200 ft). It was felt that a max speed of 300 km/h (186 mph) was attainable. The aircraft crashed on May 23, 1937 when a rotor blade detached due to a fatigue fracture of the blade spar. The pilot, I. Kozyrev, was killed. The aircraft was powered by a Wright Cyclone F-3.

Jon

Thanks Jon. I was wondering what the engine type was.

Cheers
 

borovik

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Quoting from brought above article M.Maslov's :
"Under his designing is solved was use already available constructive decisions available in fighter N.POLIKARPOV. To this effect November 21 1934, temporarily acting job title of the chief ANTONOV has required the worker drawings plane I-5, I-15 and I-16. So built autogyro really reminded the known to fighters of Polikarpov."

Further development A-12 was A-15 (two seater, with more powerful engine M-25V, diameter of the rotor 18м /beside A-12 14м/ arms 2- SHKAS). Were expected velocity on 60-80 km/h more than beside A-12.
Though real combat (W.W.II) autogyro was A-7 of Kamov
 

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Maveric

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Hi all,

we all know the TsAGI/ZAGI series of helicopters and autogiros, from the 1-EA to the A.15. I search for the two projects and the only gaps in this list, the A.9/9-EA(?) and the A.10. If you have more infos please let me know... :p ::)
 

borovik

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Hi Karsten!

TsAGI A-9 project (1936) Designer N.K. Skrzhinsky
Wingless autogyro that can take off without a run (ie leaping )
from V.B. Shavrov with double-blades rotor (in L. Kashcheyev's with a three-blades)
diameter of 12,50 m
M-11 engine (100 horsepower)
I have no image.
TsAGI A-10 project (1933) Designer NK Skrzhinsky
Six-passenger autogiro, engine M-22 power 480 hp
This was the type of gyroplane winged (wing area 12 m2)
with a three-blades rotor, is brought before the take-off from the motor launch
diameter of 16m.
The maximum speed of 195km / h
Ceiling 4000m.
Weight empty 1345kg; loaded 2250kg

sources:V.Shavrov "Aircraft of the Soviet Union 1938-1950"
A.Isakson " Soviet helicopters"
L. Kashcheyev " Helicopters and autogiros WWII"

P.S. Maveric, Information on "Aeroprakt" and KhAI almost ready. ))
Regards.
Anatoliy.
 

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Maveric

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At first, THANKS to borovik - you are great!!!! :D

Stingray, the A.14 was a really bird, but only a prototyp. This autogyro was build under Kuznetsov, derived from A-6 and A-8. First flown 1935.
One M-11, rotor diam 11,0m / lenght 6,3m / empty 576kg / loaded 815kg / max speed 167km/h / min speed 45km/h endurance 2,5h ( Source: The Osprey Encyclopeda of Russian Aircraft)

Picture Source. FliegerRevue
 

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Stingray

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Maveric said:
At first, THANKS to borovik - you are great!!!! :D

Stingray, the A.14 was a really bird, but only a prototyp. This autogyro was build under Kuznetsov, derived from A-6 and A-8. First flown 1935.
One M-11, rotor diam 11,0m / lenght 6,3m / empty 576kg / loaded 815kg / max speed 167km/h / min speed 45km/h endurance 2,5h ( Source: The Osprey Encyclopeda of Russian Aircraft)

Picture Source. FliegerRevue

Yes! Thanks, Maveric. ;D
 

borovik

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Editing:
Second designation A-10 used in 1937-39 when designing a small two-seat multipurpose autogiro.
In total six options - the first version of the project developed the sketch Designer NK Skrzhinsky with V. Kuznetsov,
all subsequent versions, together with V. Lapisov

A. Isakson "Soviet helicopters"
M. Maslov "Lost Victory Soviet Aviation"
 

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Stargazer2006

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More on the TsAGI A-10 project from Cierva Autogiros, by Peter Brooks:

"This was a 1933 project for a six-passenger cabin gyroplane with a 16 m (52 ft 5 15/16 ins) three-blade rotor and a 480 hp M-22 engine, proposed by Skrzhinskii based on experience with the A-4. The type was not built because it was of pre-direct-control technology and became outdated soon after it was proposed. The A-10 designation was later used for another project studied in 1937-39, which was not built. This was for a small two-seat direct-control gyroplane with a 140-hp MV-4 engine (Renault license)."


Can his topic be merged with http://www.secretprojects.co.uk/forum/index.php/topic,2340.0 ?
 

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Here is an article about TsAGI A-4, by Nikolai Skrzhinsky and Mikhail Mil themselves.
Source: Tekhnika Vozdushnogo Flota No.10/1933.
 

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redstar72

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And more...
 

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redstar72

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"The ways & perspectives of Soviet autogyro building", by Alexander Izakson.
Source: Tekhnika Vozdushnogo Flota No.7/1933.
 

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A picture of the TsAGI A-7 with a team of proud engineers and crewmen:
 

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Stargazer2006

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More TsAGI A-7 (from the Russian magazine Modelist Konstruktor):
 

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borovik

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More TsAGI A-15 /source V.Miheev "Moscow Helicopter Plant named V.L.Mil"
 

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Jemiba

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Looking at those pictures of autogyros with a rear gun, its severely limited field
of fire just attracted my attention !
 

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From Mikhail Maslov's "Lost victories of Soviet aviation" (Moscow, Yauza-Eksmo, 2009; ISBN 978-5-699-32513-9):
 

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redstar72

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Also A-14 and A-15 from the same source:
 

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hesham

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From Aviation magazine 1956
 

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