Turret bustle with ammo rack hidden behind cover (tank is only showing the first half of its hull/turret. If there’s ammo, it’s low and behind tracks that lead to shell shatter on APDS but not on APHE).
Also again, yak-9.
You come in from a 70 degree angle and click on the turret with APHE: it penetrates and kills turret crew and maybe even the driver if the layout is tight enough.
You come in from a 70 degree angle and click on the turret with HVAP: it penetrates and maybe kills 1 crewman unless you hit the ammo.
Duck also has APHE.
Duck also falls out of the sky with or without instructor.
Yak-9K remains competitive against most aircraft (bf109s, mustangs, corsairs, hellcats), especially if the person using it knows to transition from instructor to instructor-less modes or is able to force one-circle/scissor fights due to yak roll rates being pretty good.
Spoiler
120 deg/s without rudder, 180 deg/s using proverse roll from rudder (easy to stall into a snap-roll and depart flight, but an experienced pilot can manage that) Using full-real controls, starting from knife-edge to knife-edge as well as I can. 2km altitude, 350 km/h start
Now comparing against F6F-5 (one of the best one circle fighters at its BR range, both 30min fuel, 350 km/h IAS at start (not-ideal, this thing wants to be 450-550 km/h to do its magic):
Spoiler
80 deg/s without, 120 deg/s with rudder. Now, the hellcat does also have amazing instanteous turn that contributes to its one-circle prowess, but we’ll compare that later.
Now comparing against F4U-4 (5.3 in instructorless gamemodes, 4.3 in GRB. also 450 km/h because this thing hit 450 without trying and slowing it down to 350 was annoying and it just went back to 450 while rolling):
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I didn’t see a difference of rudder kick vs no-rudder roll rate beyond a ~10-20 deg/s. ~110 to 120.
Now clipped wing spit (Mk XVI, back to 350 km/h):
Spoiler
I didn’t manage to test rudderkicks as the plane departs flight with my rudder controls if I do that. 120 deg/s without rudder. I imagine rudderkicks would match yak-9k
Now Bf109F4:
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Rudderless: 80 deg/s, rudder: 120 deg/s (but very violent and requires experience).
Now on instantenous turn and turn radius are not something I know how to test and record in a way that’s actually consistent and rigorous - meaning, I’ve no idea how to use WTRTI to make an E_M diagram. Just recording instantenous turn against time would provide false info. As an added complication, I suck at coordinating turns in the spitfire so I’d be way underselling its performance (a non-issue with roll rate given even departed flight provides good data). I thought to check catwerfer’s data, even if it’s hindered by instructor limits, but he didn’t test yak-9k in particular. I concede that roll rate alone does not make an excellent one-circle fighter, turn radius also matters just as much. On flipside, roll rate benefits all aspects of dogfighting because even in a rate fight, you can use superior roll rate to manage your curves to force better positions even if you rate worse.
But for hilarity, here’s the duck’s roll rate:
Spoiler
60 deg without rudder, 80 deg with rudder
