Can bf109 break sound barrier?

[il2crashesnfails]

I did a speed test with the bf109 and was abit surprised. Has anyone gone any faster?

What is the max speed a bf109 has gone in real life? is it normal for the 109's engine to cut out?

 

 

 

 

Edited November 24, 2018 by il2crashesnfails

[grant1983]

problem with these planes is "mach tuck" close to sound barrier causes the nose to point down!

[Legioneod]

Fastest I've dove in a K4 was 580-590 Mph (933-949 kmh) I didnt take any structural damage until around 580mph.

[il2crashesnfails]

4 hours ago, Legioneod said:

Fastest I've dove in a K4 was 580-590 Mph (933-949 kmh) I didnt take any structural damage until around 580mph.

 

 

did you get damage before of during pulling out of dive?

[Legioneod]

34 minutes ago, il2crashesnfails said:

 

 

did you get damage before of during pulling out of dive?

right before the pullout I lost an aileron at around 580-585 mph. But nothing too serious that I couldn't make it back to base if I wanted.

[Guest deleted@83466]

It would be very problematic for any propeller driven aircraft to break the sound barrier, because the drag from the prop is simply too much, and when your prop is going supersonic it isn't effectively producing any thrust.

[ZachariasX]

39 minutes ago, SeaSerpent said:

It would be very problematic for any propeller driven aircraft to break the sound barrier, because the drag from the prop is simply too much, and when your prop is going supersonic it isn't effectively producing any thrust.

Supersonic props:

[=362nd_FS=RoflSeal]

2 hours ago, ZachariasX said:

Supersonic props:

The props turn at supersonic speeds at the tips, the aircraft themselves don't go supersonic

[il2crashesnfails]

11 minutes ago, RoflSeal said:

The props turn at supersonic speeds at the tips, the aircraft themselves don't go supersonic

 

 

I think the sea fury had a prop that created supersonic vortex

[ZachariasX]

2 hours ago, RoflSeal said:

The props turn at supersonic speeds at the tips, the aircraft themselves don't go supersonic

The prop F-84 was supposed to go supersonic and it entire propeller did go supersonic. In case of the Tu-95, for sure the blades go only partially supersonic, but a significant part of whatever you call „tip“ goes supersonic by working as intended.

 

Of course a propeller works when going supersonic, it just loses efficiency same as a wing (that is what the prop blades are) loses specific lift when going supersonic.

 

[=362nd_FS=RoflSeal]

31 minutes ago, ZachariasX said:

The prop F-84 was supposed to go supersonic

 

And it was never close with a top speed of M0.7, a record that was exceeded decades later by a souped up F8F

Edited November 25, 2018 by RoflSeal

[ZachariasX]

5 minutes ago, RoflSeal said:

And it was never close with a top speed of M0.7, a record that was exceeded decades later by a souped up F8F

At 3000 rpm, outside ~0.9 meter radius will go supersonic. At Mach 0.8, a much larger part. That‘s plenty supersonic.

 

While it is a silly thing to do (for many other reasons as well), you *can* do it.

[-=PHX=-SuperEtendard]

900 km/h at 1500 meters given it's Autumn season (15ºC at sea level) would be 968 km/h TAS, which would be around  0.8 Mach iirc

[il2crashesnfails]

7 hours ago, -=PHX=-SuperEtendard said:

900 km/h at 1500 meters given it's Autumn season (15ºC at sea level) would be 968 km/h TAS, which would be around  0.8 Mach iirc

 

mach 0.8 is way faster then I thought the 109 would go, I thought a wing would come off in the pull up.

[Legioneod]

On 11/25/2018 at 8:04 PM, il2crashesnfails said:

 

mach 0.8 is way faster then I thought the 109 would go, I thought a wing would come off in the pull up.

Aircraft can dive past there critical mach, they'll just suffer problems though not always structural. P-47 for instance could dive around 0.8 mach as well but it's critical mach was quite a bit lower at around 0.7 iirc. At and above it's critical mach it suffered from control reversals but I've never read of any structural failure from going above it's critical mach.

[il2crashesnfails]

9 hours ago, Legioneod said:

Aircraft can dive past there critical mach, they'll just suffer problems though not always structural. P-47 for instance could dive around 0.8 mach as well but it's critical mach was quite a bit lower at around 0.7 iirc. At and above it's critical mach it suffered from control reversals but I've never read of any structural failure from going above it's critical mach.

 

interesting, it can dive at that speed but what happens when you pull back on the elevator? does it come off?

[Legioneod]

1 hour ago, il2crashesnfails said:

 

interesting, it can dive at that speed but what happens when you pull back on the elevator? does it come off?

Not that I'm aware. In reality it shouldn't come off anyways, the structural limits of the P-47 (and many aircraft) is higher than what it could actually dive.