Best Jet of WW2?

• May 9, 2004

• #101

R

R Pope

Senior Airman

318

11

Mar 10, 2004

Where did you get the idea that you can't break the sound barrier if you're not making any sound? That's just silly. Bullets don't make any sound (of their own)and they don't seem to have much trouble going 3 or 4 times Mach.And where did the bit about the Spitfire airframe being able to stand supersonic speed come from? You guys need to research your facts a little better.

 

• May 9, 2004

• #102

plan_D

Lieutenant Colonel

11,639

23

Apr 1, 2004

No, he said that you don't hear the Sonic Boom. He said nothing about it not being able to break the sound barrier, you need to read better. And bullets don't go Mach 3-4 they go about Mach 1.1 just over the speed of sound, maybe you should research better.

I said the Spitfire couldn't because of the props, I never said anything about the Spitfire airframe being able to do so. But since they tested the Spitfire to try and break the sound barrier, I imagine they also thought it to be possible.

 

• May 9, 2004

• #103

plan_D

Lieutenant Colonel

11,639

23

Apr 1, 2004

But with that, I've been informed that you still do hear a sonic boom. A gathering of sources is required...

 

• May 10, 2004

• #104

B

brad

Airman 1st Class

249

0

Apr 10, 2004

fly to aout 15000ft and go down till you get over the speed of sound oh and a bullet travlles at mach2.2 so you are both rong

 

• May 10, 2004

• #105

cheddar cheese

Major General

20,259

21

Jan 9, 2004

WSM, England

doesnt the speed of the bullet count on the type of gun?

 

• May 10, 2004

• #106

B

brad

Airman 1st Class

249

0

Apr 10, 2004

no way ho say

 

• May 10, 2004

• #107

cheddar cheese

Major General

20,259

21

Jan 9, 2004

WSM, England

hmmm, fine 8)

 

• May 10, 2004

• #108

plan_D

Lieutenant Colonel

11,639

23

Apr 1, 2004

The speed of a bullet does depend on the gun, but there is little change in statistic terms, but it makes a lot of difference when it hits something. Also the size of round affects the speed, a 5.56mm round goes faster than a 7.62mm round for example.
Even with that most bullets go around, and above Mach 1, but only just. Depending on your altitude it changes what speed (mph or km/h) Mach 1 is, but it is still refered to as Mach 1 even if at sea level it is 760 mph but at 20,000 ft it is 730 mph (not the real figure).

 

• May 11, 2004

• #109

the lancaster kicks ass

Major General

19,931

17

Dec 20, 2003

i said it's tecnicaly impossible, you can go faster then the speed of sound if you're not making any sound, but you can't break the sound barrier, i hope that clears things up.........

 

• May 11, 2004

• #110

L

Lightning Guy

Master Sergeant

2,511

6

Apr 29, 2004

I'm not sure that's cleared anything up.

 

• May 11, 2004

• #111

cheddar cheese

Major General

20,259

21

Jan 9, 2004

WSM, England

im just gonna keep outta this...

 

• May 12, 2004

• #112

the lancaster kicks ass

Major General

19,931

17

Dec 20, 2003

I'm not sure that's cleared anything up.

Click to expand...

how, hopefully i can shine some light on it if you don't understand, but it's pretty hard to explain................

 

• May 12, 2004

• #113

L

Lightning Guy

Master Sergeant

2,511

6

Apr 29, 2004

Well, I did some numbers crunching and 3,000 fps (a not unatainable speed for a rifle bullet) translates to somewhere around Mach 3 (depending on altitude).

 

• May 12, 2004

• #114

the lancaster kicks ass

Major General

19,931

17

Dec 20, 2003

Mach one's about 760mph.............

 

• May 12, 2004

• #115

L

Lightning Guy

Master Sergeant

2,511

6

Apr 29, 2004

At sea level. It drops off to below 700 at altitude.

 

• May 12, 2004

• #116

the lancaster kicks ass

Major General

19,931

17

Dec 20, 2003

it always changes at different altitudes, the speed of light doesn't however........................

 

• May 12, 2004

• #117

plan_D

Lieutenant Colonel

11,639

23

Apr 1, 2004

Yes, the speed of sound does change at altitudes, the speed of light also changes but not with altitude (or not that I know of). The speed of a bullet at sea level goes about Mach 1.
If a person is like a mile away, shoots, and you see the flash you can avoid it (You have to be quick though, I wouldn't advise trying ). At Mach 3, you couldn't.

 

• May 12, 2004

• #118

L

Lightning Guy

Master Sergeant

2,511

6

Apr 29, 2004

At low altitude, a 3000fps bullet would be Mach 2.7. Which is still really fast. And according to Einstein, the speed of light is the only true constant in the universe.

 

• May 12, 2004

• #119

plan_D

Lieutenant Colonel

11,639

23

Apr 1, 2004

Never did Physics? Refraction ring a bell? Shine a beam of light through glass, it refracts because it slows.

 

• May 12, 2004

• #120

L

Lightning Guy

Master Sergeant

2,511

6

Apr 29, 2004

Actually I did a lot of physics. But you are right. But that is a change caused by medium rather than altitude. I believe that Einstein was refering to light in a vacuum but I'm mostly guessing now.