M-82 / M-105 engines

[WTE_Galway]

Originally Posted by JG52Karaya

Hello everybody,

Here's a few questions for the experts at hand:

I keep reading that all M-105 engines had ordinary carburettors and thus suffered from neg. G cutouts and that the VK-107 was the only operational Klimov engine with fuel injection. Same for the early M-82 engines (M-82A and M-82F found on the La-5 and La-5F).

So, should all Yaks (excluding the Yak-3 VK107 and Yak-9U) and LaGGs as well as the La-5 & La-5F suffer from neg G cutouts as we see them on the early Spitfires now?

True for very early 1939/1940 aircraft such as the very first Yak 1's as these were equipped with the M-105P.

From the M-105PA (1940/1941) onwards a new carburetor (without a float chamber) was used avoiding the negative G problem.