I wasn't mentioning a Tempest, I was describing the Typhoon, which has a deck speed of 375, and is armed with x4 hispanos. Is it going to be perked? It should by your theory.
Have you ever looked at the climbrate of either the Typhoon (up to 10k) or the G10? Both can already climb as well, actually much better, than the La7.
FYI the turnrate of a La5FN and the La7 are both comparable to the sustained turn rate of a P-51D, about 20-21 seconds to complete a 360 degree turn, in the direction of their best turn. Also about the same as a Yak-9U. I don't know where you get the idea that any of them are great turners. Good E fighters in the vertical but they are not TnB aircraft in the least.
So what if the La7 is very fast on the deck. Basically what you are telling me is that the La7, the most widely produced late war fighter for the VVS (5,700+ produced), more than the P-47D (25&30 combined), P-38L, Fw190D9, Me109G10, N1K2-J, Ki-84, Ki-100, Spit XIV, and many many others. Has to be perked just because of its deck speed and low alt climbrate, even though we already have other unperked fighters that have comparable performance and were much less common in the real war.
Get the thing above 15k and just about ANYTHING will outperform it. Not to mention it has no droptanks, low ammo loadout, low-moderate velocity 20mm cannons, poor visibility, and no external ordinance. It is NOT a superplane.
I just don't get it. You keep saying "Look at XXX its too good", but we already have other planes that are just as good. Either its a standard or its not a standard. If it applies to one, it should apply to all. Show me any stat that you think is too good for the LA7, and I will show you several planes in the current planeset that can do it just as well.
What it really comes down to is that people couldn't handle the fact that a VVS fighter should be in the competition as one of the best freely available arena planes.
*GASP* you mean the Americans, Germans, and British actually had someone that could build a comparable combat aircraft in the war? NEVER!!

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Vermillion
**MOL**, Men of Leisure