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Old Feb 24, 2012 | 11:48 PM
  #14471  
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Sir,yes Sir. Rocky road ?

At mach3 what is the quarter mile time ?
Old Feb 25, 2012 | 12:55 AM
  #14472  
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Well let's see here, at Mach 3 you're covering 1/4 mile in 0.1542 seconds.

I wonder if Vince at Trifecta could get an SS anywhere near 2,220 mph at sea level, what do you think?
Old Feb 25, 2012 | 09:31 AM
  #14473  
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When you put it that way .15 seconds for the 1/4 mile. That might muss you hair on the way by. That might be all you would see, until the boom comes along, How would that work if it's going three times the speed of sound ?? 3 booms ?

I think Vince is good but he might need a few more cylinders to make that power, The sr71 must have had a considerable amount of thrust, closer to a rocket, than a plane.
Old Feb 25, 2012 | 10:02 AM
  #14474  
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Only one sonic boom, that phenomenon is caused by the shock wave generated by the aircraft reaching the ground, when the wave hits you get that awesome "BOOOM!". Think of the shock wave as a cone laid on its side, the aircraft generating it is at the very tip, and the cone spreads out behind for miles in all directions.

Each Pratt & Whitney J58-1 continuous-bleed after-burning turbojet produces 34,000 lbs of thrust which is the equivalent of 51,000 hp each at sea level. But the SR-71 only needed that much power to reach altitude and cruising speed, once at its assigned altitude the engines were throttled back to 25-30% power max so the aircraft didn't hit its VNE(Velocity Never Exceed).

Had government funding not been directed to spy satellites, improvements were in the works to allow the 71 a revised top speed in excess of Mach 6.

Did you know they leak fuel and fluids constantly until they reach altitude and skin hits its normal temperature of 572 °F?
Old Feb 25, 2012 | 10:26 AM
  #14475  
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No I didn't. Makes sense, the aluminum must expand a tad at 572,....Hey wheres the degree key?
Old Feb 25, 2012 | 05:09 PM
  #14476  
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Actually the skin and fuselage are made of titanium and titanium alloys, bought on the open market from the USSR at the height of the Cold War. Various government owned shell corporations purchased titanium in moderate quantities right under the nose of the KGB, it was and still is a strategic material, with 90% or the ore located in Russia.

You didn't know we have a "degree key", did they teach you Secret Handshake #1 or #2 when you joined?
Old Feb 26, 2012 | 10:35 AM
  #14477  
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They do have a corner on the heavy metals, they have a rugged path to ship it out, down frozen river.

I picked #1, still don't see it, where did them glasses go ??
Old Feb 26, 2012 | 10:49 AM
  #14478  
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How about I just loan you a degree symbol?

° You can copy and paste it, unless you're really into messing around with Unicode, then its....."Unicode characters similar in appearance include the "masculine ordinal indicator" (U+00BA, º ), the "ring above" combining diacritic (U+02DA, ˚ ), "superscript zero" (U+2070, ⁰ ) and the "ring operator" (U+2218, ∘ )."
Old Feb 26, 2012 | 11:00 AM
  #14479  
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Ghats a mouth full, like this 5th ° ? °
Old Feb 26, 2012 | 11:11 AM
  #14480  
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By George, I think he's got it! Don't you?



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