|Power at 0m||1020hp|
|Power at 4000m||1050hp|
|Weights and loads|
|Wing Load (kg/m2)||165|
|Power load (kg/hp)||2.76|
|Gun Type (Position)||Ammo|
|1*20mm ShVAK (engine)||120...140|
|Bombs||see Yak-1 M-105PA with bombs|
|Rockets||see Yak-1 with RS-82|
Similar canopy modifications were performed on service Yak-1 in field conditions by pilots and technicians of 42th IAP (Maj.F.I.Shinkarenko). Simple aircraft construction did not require special tooling to modify, and quality of Shinkarenko Yak's were same as factory-built Yak-1b.
New armament saved 8.5kg of weight and resulted in 15% increase in aircraft salvo. Large caliber bullets of the UBS resulted in more serious damage than the rifle ShKAS ammo. Indeed, simple 'salvo' characteristic does not objectively reflects the aircraft firepower.
Flight tests of modified Yak-1 N°35-60 was test-flown in July 4 to 14, 1942. 16 flights (totalling 8h15min) were performed by test-pilots of NII VVS A.G.Proshakov, P.M.Stefanovskij, A.G.Kochetkov, L.M.Kuvshinov, V.I.Khomiakov and supervised by leading engineer A.Pronin and technician L.V.Nikolaev.
Official combat trials were carried out starting December 10 1942 until January 28 1943. 58 aircraft were assigned to the 32th Guards IAP of 210th IAD 3rd VA (Kalinin Front) and 176th IAP of 283rd IAD 16th VA (Stalingrad Front). 669 sorties were flown (617h), during which 38 air combats took place. 25 enemy aircraft were shot down: 5xBf-109F, 6xFw-190, 8xJu-87, 3xHe-111, 2xHs-126, 1xJu-88 while 6 Yak-1B were lost.
Improved armament, fire control ad armoring of the pilot's compartment were highly priced by pilots and accepted as a standard for all Soviet fighters.
Total production of Yak-1B was 4188 aircraft.
|Created June 14, 2000||Back to|