Korolev's SK-3 glider, Russia,1930, 1/72

You can download this model here:

Cardmodel



SK-3 Krasnaya Zvezda (Red Star) – aerobatic glider, the first Soviet and maybe even the world’s first (correct me if I’m wrong). Designed specially for aerobatic maneuvers (safety factor of 10); first time diving flight calculations were made for a glider. It was projected since autumn 1929 and built in 1930 in Moscow during 47 days only. SK-3 participated in 7th (October 1930) and 8th (October 10 – November 10, 1932) All-Union gliding contests in Koktebel. On October 28, 1930 Vasily Stepanchonok (later renowned test pilot) during one flight made 3 normal loops with it. This was world’s first successful attempt to perform such maneuvers on a glider which climbed on thermics (shortly before American pilot made 4 loops on a glider, but he used assistance of towing airplane for climbing).

Technical data:

Wing span – 12.2 m

Length – 6.79 m

Wing area – 12 m2

Wing aspect ratio – 12.4

Empty weight – 189 kg

Flight weight – 270 kg

Gliding ratio – 20:1

Rate of sink – 0.9 m/s



One of the first machjne of Korolev:

Sergueï Korolev ? Wikipédia