HVAR recoil

If you want to make a reality argument, you cannot say, one rocket-firing weapon system doesn't have recoil, therefore no rocket-firing weapon system has recoil. Correlation does not prove causation.

You are right that generalizing from the particular to the universal is an invalid deduction, but that is not a correlation/causation fallacy.

As for physics, the rocket accelerates because the rocket engine pushes on the exploding rocket fuel, which pushes back on the rocket (3rd law). The rocket is not pushing on the wing. Rockets accelerate in the vacuum of space; they do need outside matter to push on to accelerate.

Finally! In case this is still being discussed....

Watch the attack at 0:50. No recoil. Case closed.

Finally! In case this is still being discussed....

 

WOW, nice find!! I don't think there can be two opinions about that video.

Finally! In case this is still being discussed....

Nice video.

Thanks. :)

You are right that generalizing from the particular to the universal is an invalid deduction, but that is not a correlation/causation fallacy.

 

As for physics, the rocket accelerates because the rocket engine pushes on the exploding rocket fuel, which pushes back on the rocket (3rd law). The rocket is not pushing on the wing. Rockets accelerate in the vacuum of space; they do need outside matter to push on to accelerate.

Unfortunately some people have been arguing for recoil in this very thread using videos of rockets firing from light trucks. They show an obvious reaction of the weapons platform (truck) to the firing of the rockets.

Personally I don't think the reaction of the truck is actually recoil, but rather caused by the friction of the rocket leaving the tube and the weight of the rocket being removed from the truck, and possibly some affect of the engine jet blowing on the launching tubes and mounting. But that is still just speculation and conjecture.

The Korean War video is nice --thumbs up for the find-- but I'm sure if someone is in a bad mood they'll argue that the 'recoil' is only a degree or two; invisible in such a film.

The gun camara videos are more illustrative IMHO. Coupled with the noted documentations and statement from Chuck Yaeger, and that nobody has been able to present any direct evidence of recoil while firing a rocket from the P-51D, I'm going to assume that the case has been made.

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Unfortunately some people have been arguing for recoil in this very thread using videos of rockets firing from light trucks. They show an obvious reaction of the weapons platform (truck) to the firing of the rockets.

 

Personally I don't think the reaction of the truck is actually recoil, but rather caused by the friction of the rocket leaving the tube and the weight of the rocket being removed from the truck, and possibly some affect of the engine jet blowing on the launching tubes and mounting. But that is still just speculation and conjecture.

 

The Korean War video is nice --thumbs up for the find-- but I'm sure if someone is in a bad mood they'll argue that the 'recoil' is only a degree or two; invisible in such a film.

 

The gun camara videos are more illustrative IMHO. Coupled with the noted documentations and statement from Chuck Yaeger, and that nobody has been able to present any direct evidence of recoil while firing a rocket from the P-51D, I'm going to assume that the case has been made.

 

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+1 My sentiments exactly.

Another thing that baffles me about the trucks/jeeps firing rockets compared to aircraft: none of them, at least the ones in the videos shown, have 150-250mph of slipstream holding them stable at rocket launch.

Hellfires don't yaw a helicopter significantly when they're fired, and they are a lot larger than rockets, even the 5" ones on a P-51.

Edit: Sorry to bring back old stuff. Just was thinking about this.

Any updates on this?

Update: It's fixed!!... in 2.1 Alpha :doh:

So patience, and when 1.5 and 2.1 are merged (maybe this year) we will have a universal fix, I hope :D

Yay, I guess!

It did take a while :D.

Good things come to those who don't die while waiting :P

Awesome!

Good things come to those who don't die while waiting :P

Haha indeed.

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I would think the rocket exhaust below the wing would lead to a momentary (and probably unnoticeable) decrease in lift. Pretty much the inverse of ekranoplan designs which featured the engine exhaust traveling above the wing in order to increase lift.

The reduction in drag and weight from the fired rocket probably have much more of an effect.