On 19 Mar 2007 18:16:29 -0700, miso@sushi.com wrote:   
      
   >On Mar 19, 4:14 pm, krackula <> wrote:   
   >> >The problem is nothing experimental is flown without a chase plane or   
   >> >two. You should see conventional contrails along with that produced by   
   >> >the experimental airplane. Generally new engines are put in   
   >> >conventional aircraft, often as only one of a few engines since you   
   >> >don't trust the new beast. Now if the engine is debugged and has a   
   >> >corresponding project, I suppose they could be flying a plane, but   
   >> >there would still be chase.   
   >>   
   >> what kinda chase  set-up would they use for a pulse jet UAV   
   >> traveling  across nevada  out to sea  at about 5500 mph  at 85k+   
   >> altitude  ?  maybe a blackbird or ??   dunno what we have that could   
   >> shadow that kinda test ?   maybe station planes all along the flight   
   >> path   watch it  or use a satellite to track it ?   it's probably hard   
   >> to find enough space and places to performance test that kind of   
   >> vehicle .   
   >   
   >Oh, now it's both loud and fast?   
      
   ye ha doggie  .....!!!   
      
    it's like  chain thunder /  series sonic booms.   it's  very   
   attention getting .   fast ? ......... I did say you only have "   
   moments " to  look  for  it before it's gone.  I've seen missiles that   
   didn't seem to disappear that fast ( course they were going " up " and   
   not across )  .  you notice the  sonic booms  sound , it rises up a   
   bit and then very suddenly ( way sooner than you expect )  it tails   
   off to nothing .......  you're not even sure where it came from ....   
   just , generally, the direction it went .   
      
      
   it's the actual point of my first post .  THIS thing is probably   
   faster than anything you have seen before and makes sounds like you've   
   never heard as well.   at least , I've never heard anything like it   
   before .  never saw a doughnuts on a string  con trail ...... never   
   saw anything at all ...... my best guess  is it was  too high and   
   WAY ahead of the sound it was making  or I couldn't keep up with it as   
   it passed.    never saw hide or hair of it ....  but you sure knew it   
   was  up there .   it's pretty much the same experience with the other   
   people that  hear it.   I've heard it go " out "  ( due west )  twice   
   but never " back " .   same with the people  over in California   
   .... they've heard it several times , always heading west  !   
   usually at about 2 - 3 in the morning  !   
      
      
   the 5500 miles per hour  is  from the info  in the link  someone else   
   posted in this thread  ( mach 6 or 7 , I forget .. )  for the pulse   
   jet   
      
   and the 85k alt ..... is partially from  you ( you said they couldn't   
   legally fly it under 65k  )   ......... add the sonic boom front and   
   it'd  prolly need to be  at least 20k or better higher not to mess   
   with  commercial carriers .........   
      
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