Hello folks,
There are two Russian airplanes that have caught my attention to build models
of in the near future: The Il-2 Shturmovik and the Petlyakov PE-2.

IL-2 Shturmovik
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The Il-2 Shturmovik fighter seems to have been quite a remarkable WWII fighter,
tuned for low-altitude ground attack. It was difficult to shoot down and posed
a strong rival to the Luftwaffe. There is only one fying example nowadays,
but several are displayed in museums.
36,183 units were built making it one of the most produced fighters in history.
At a MTOW of 10300 lb, its armoured shell was 15% of this weight.

A two-seater prototype flew in 1939, and went through several improvements.
In 1940 a high-altitude version came out with original Mikulin AM-35 1,370 hp.
improved versions of the Hispano Suiza Y12.

However, it was decided to have a lighter, single-seat design, with the more
powerful 1,680 hp Mikulin AM-38 engine, optimised for low level operation.

It proved devastating for ground attack missions, against road convoys, railways
and tanks, but was vulnerable against air-attacks, so the two-seater version was
re-instated in 1943, with an aft-firing machinegun, and an upgraded Mikulin AM38F
engine that conferred a Max. speed of 257 mph.

This engine had a geared supercharger, working at 53.54 in. Hg for take-off,
giving 1720 Hp at 2350 RPM, whereas for normal maximum continuous operation it
operated at 47.24 in. Hg, giving 1500 Hp at 2050 RPM at 2500 ft.

Petlyakov PE-2
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The Petlyakov PE-2 was a twin-engined fighter/dive-bomber, remarkably fast,
manoueverable and durable. It started out as a high-altitude fighter-escort. The
prototype had a pressurized cabin, superchargers and many electrically actuated
systems. Because a tactical bomber was deemed more necessary, the design was then turned
into a heavy fighter/dive bomber, and production started in 1941.
11427 units were built.

The most-produced version was the PE-2FT, with 2Ũ1210 hp Klimov M- 105PF liquid-
cooled V-12 engines, which had a 2-stage supercharger:
(Data for the M-105R)
> 1,100 hp at 2,700 RPM for take-off, boost rated at 1.27 Atm (38.00 MP)
subsequent variants had 43.3 and 47.2 MP
> 1,050 hp at 2,700 RPM at 13,123 ft, boost rated at 1.21 Atm (36.22 MP)
subsequent variants had 43.3 MP
> 500 hp at 2,700 RPM at 31,168 ft (9,500 m)
>Emergency boost (maximum 2 minutes): 1,100 mm Hg (43.30 MP) at 2,800 RPM.
subsequent variants ??
>Critical altitude: 2,000 m (6,561 ft) at 1st speed, 4,000 m (13,123 ft) at 2nd speed.

(I still have to see which variant is the M-105PF, which had 100 Hp more, but it seems
to have been a maximum of 43.3 MP for the engine in question.

As CFS1 only allows single-speed superchargers, for the moment I have decided to
put take-off and emergency power into WEP, totalling 43.3 MP, leaving altitude boost
power within normal operation at max. throttle - 36.22 MP.

In my opinion, these would be two very interesting models to make for CFS1!
Cheers,
Aleatorylamp