Possible, I think yes. Probable, I’d lean towards no. I think it would be more of the Axis player making a mistake in troop allocation early in the game and not sending enough to the Eastern Front that would lose them the war as opposed to Russia winning the war.
The Soviet Patriotic War was more what WW2 was called from the Soviet standpoint, while Lend-Lease was how the other Allies, particularly the US helped aide it’s allies with war materials and money. If you look at the Soviet Patriotic War rules as Lend-Lease, which is what it should have been called in the manual, then sending planes, or war materials, was historically accurate.
The US gave the Soviets over 11 Billion in material during the war, and over 31 Billion to the Brits (US gave over 50 billion total during war, today equal to over 700 billion) The British actually sent 14% of their total tank production to USSR during the war, so some of the money and goods the US gave the UK was in turn given to the USSR. But as for planes, over 18,000 of them went to the Soviets historically from US/UK.
This function in the game is both historical and necessary for the Allies to win the game as it was historically.
Lend-lease aircraft amounted to 18% of all aircraft in the Soviet air forces, 20% of all bombers, and 16-23% of all fighters (numbers vary depending on calculation methods), and 29% of all naval aircraft. In some AF commands and fronts the proportion of Lend-Lease aircraft was even higher: of the 9.888 fighters delivered to the air defense (PVO) fighter units in 1941-45 6.953 (or over 70%!) were British or American. In the AF of the Karelian front lend-lease aircraft amounted to about two-thirds of all combat aircraft in 1942-43, practically all torpedo bombers of the naval air forces were A-20G Bostons in 1944-45 etc.
from http://lend-lease.airforce.ru/english/articles/geust/aircraft_deliveries.htm
also…
_The aircraft delivered as part of the lend lease programme were especially welcome following the Red airforces catastrophic losses during the opening months of the campaign. Lend-lease aircraft amounted to 18% of all aircraft in the Soviet air forces, 20% of all bombers and 16% of all fighters and 29% of all naval aircraft. Some American aircraft types, such as the P-39 Airacobra fighters, A-20 Boston and B-25 Mitchell bombers and C-47 transport aircraft, were highly revered by their Russian crews. Several Russian aces scored more than 40 victories with Airacobras. The list below details the numbers and types of individual aircraft sent to Russia:
P-39 Airacobra single-engine fighters - 4719
P-40 single-engine fighters - 2397
P-47 - 195
Hurricane single-engine fighters - 2952
Spitfire single-engine fighters - 1331
A-20 twin-engine light attack bombers - 2908
B-25 twin-engine medium bombers - 862_
from- http://www.theeasternfront.co.uk/lendlease.htm