For some time now I have been observing the speed. I have the effect that they do not correspond with what the hud indicates.
Sometimes I go over 500 and it seems that I am going at 100, I notice it because when going close to the ground the trees pass by more slowly and other times much faster.
On the other hand I see that some slower planes reach me when I am at 4000m or more and they come from 500 or so, I fly a P-63C-5 its maximum speed is 703 at an altitude of 4500m. How can a P40F-10 go up faster?
I use this episode as an example, I chase a B-25J-1 descending at a speed of 607km/h at an altitude of 1988m and I only reach 530 km/h descending to an altitude of 1826m.
Not only do I notice it here in turns or after a streak of 3 kills the plane becomes slower even though it is 100% undamaged.
Greetings, be happy.
HUD sometimes uses different speed measurements that you are for example, a lot of aircraft in the US TT use knots instead of mph or kph so if you use knots it would match up in that case
btw the p-40’s are actually just flat out better that the p-63’s in most aspects
Without considering the rest of your post:
Try to use (somewhere in the settings) both speed measurements in your HUD:
IAS = indicated airspeed like seen in your cockpit
TAS = True airspeed, the speed relative to the ground / surrounding air
The IAS in props is working based on air density; the higher you go, the larger the gap. In another thread a Javelin pilot flew with ~ 500 kmph TAS at 8.5 km - which was around 300 kmph IAS- just to show you the possible gap.
So if u use just IAS you will never see the “real” topspeed of your prop - and if you u just use TAS you can theoretically stall out at very high alt even as your TAS speed looks still fine - as your stall speed is determined by IAS values.
Wiki:
Summary
Uses of indicated airspeed
[edit]
Indicated airspeed is a better measure of power required and lift available than true airspeed. Therefore, IAS is used for controlling the aircraft during taxiing, takeoff, climb, descent, approach or landing. Target speeds for best rate of climb, best range, and best endurance are given in terms of indicated speed. The airspeed structural limit, beyond which the forces on panels may become too high or wing flutter may occur, is often given in terms of IAS.
Uses of true airspeed
[edit]
The true airspeed is important information for accurate navigation of an aircraft. To maintain a desired ground track whilst flying in a moving airmass, the pilot of an aircraft must use knowledge of wind speed, wind direction, and true air speed to determine the required heading. See wind triangle.
TAS is the appropriate speed to use when calculating the range of an airplane. It is the speed normally listed on the flight plan, also used in flight planning, before considering the effects of wind.
I don’t like points like " trust me bro" but this claim is rather strange. With around 20k battles in Air RB i never witnessed such a performance drop.
You might want to share a replay link when this happens next time.
Have a good one!
PS: P-40s are garbage - a 3.3 P-63 flies circles around it, superior climb and speed and excellent high speed handling and dive characteristics…
your thinking of the P-39 the plane the P-63 evolved from, that one is better than the P-40’s but the P-63’s are roughly the same turn wise to the P-40F but are slower than the F
Thanks for the comments, I will try what you tell me about the P63 and I will include the two measurements to see what you says.
H Nice D