F-51D

[[I.B.]-=ViRUS=-]

Please post any issues connected to F-51D here.

[Dash,Polder]

The fore and aft movement is incredibly tight when there's plenty of real estate all the way back to the seat back plate.  There's many times more side to side leeway.  Realize it may be due to the pilot body match up, but is it necessary when the pilot is off?   I personally can't stand pilots in the pit, so its really restrictive in that rather big pit, the VR boundary is chronically hitting the fore and aft just looking around in normal flight.  

Put some lean into that pilot or free it up when operating without one. 

[YoYo]

Any tips for taking off from an (unpaved) runway? It bounces a lot while gaining speed on an unpaved airfield.

[OreoBird_147]

7 hours ago, YoYo said:

It bounces a lot while gaining speed on an unpaved airfield.

I find that the F-51D is indeed a little on the bouncy side. I'm no real Mustang pilot and this is purely speculation on my end, but I find that no matter what I do, the Mustang just wants to bounce all the way back into the air when I land using real-life approaches, airspeeds and techniques. A two-point landing is basically impossible to perform. The only thing that works is doing a full-stall three-point landing, stalling it out mere inches above the runway. 

Again, this is just my ''feeling'', but compared to some Mustang videos online, the F-51 in IL-2 just seems way too bouncy and it'd be nice if this could be addressed by the devs as to whether or not this is realistic. 

Here's a (painful) video of a real-life Mustang landing, the pilot landed short and hard here, the airplane is launched back into the air because of a bump in the terrain, but right after the two touchdowns the Mustang is nowhere near as bouncy as the IL-2 one, despite the very harsh landing: https://youtu.be/Aj220G8Qucc?si=j1gqKkQvxEuId-KX&t=220 (watch at 03:40). 

 

[YoYo]

For testing, please use this K-49 airfield (near Seoul, runway start), to the east. The Mustang's shock absorbers seem too stiff. During the takeoff roll (even compared to the P-51D IL-2 Battles of...), the F-51D has poor ground grip, as if rolling over bumps. While takeoff and landing are fine on a smooth surface (concrete), on unpaved surfaces, the aircraft behaves as if rolling over rocks and jumps upwards. It's quite difficult to keep it in check, and it doesn't look like that in reality (by the way, the team has denied their IL-2 BoX model). Please fix this.

Edited Saturday at 08:30 PM by YoYo

[Chungmu]

In game states that UP 3000RPM and 61 MP is combat power. 

F-51 in game is treated at emergency power at these settings. 

In fact, its treated at emergency as low as 2700 rpm at 47MP

Edited Sunday at 07:01 AM by Chungmu

[B34k]

15 hours ago, Chungmu said:

In game states that UP 3000RPM and 61 MP is combat power. 

F-51 in game is treated at emergency power at these settings. 

In fact, its treated at emergency as low as 2700 rpm at 47MP

Actually it's worse than that.  

3000 RPM 61 MP is considered Emergency power

2700 RPM 61 MP is considered Combat power.

This makes no sense as 2700 RPM would be more stressful on the engine than 3000 RPM, not less. Something seems off between how they're defining the relationship between RPM, MP, and Engine Failure Probability...

[Civilprotection]

I just wanted to add that any rpm above 2700 for the F-51 is considered emergency power and reduces the engine life dramatically.

[Civilprotection]

I was also wondering if anyone has had any luck with 150-grade fuel to work. It doesn't seem to have any effect. I take it as a mod, and the most power I can get is 67". is anyone else experiencing this?

[86thFG_Red_Panda]

Just now, Civilprotection said:

I was also wondering if anyone has had any luck with 150-grade fuel to work. It doesn't seem to have any effect. I take it as a mod, and the most power I can get is 67". is anyone else experiencing this?

Yes it doesn't appear to be working, stays at 67" and there doesn't seem to be any speed gain

[iflyflightsims]

4 hours ago, Civilprotection said:

I was also wondering if anyone has had any luck with 150-grade fuel to work. It doesn't seem to have any effect. I take it as a mod, and the most power I can get is 67". is anyone else experiencing this?

Yes, I am having this issue as well. The manual says we should be able to get up to 75", but at sea level I cannot get above 67" with the 150-grade fuel mod.

On 6/28/2026 at 5:21 PM, Civilprotection said:

I just wanted to add that any rpm above 2700 for the F-51 is considered emergency power and reduces the engine life dramatically.

I noticed this as well. The manual says that combat power is at 61", 3000 RPM. 

[Mark_Krieger]

Flight model on the Mustang. I thing the dampers should be improved (they are clearly too stiff) and perhaps this happes in most planes, although it's true that the runways in Korea have bumps, I feel all planes that I've tried at the moment bump too much.

The other thing that it's important that should be improved is the behavior of the snap roll.

https://www.youtube.com/watch?v=MnW01_1v-eA