posted on Jul, 16 2014 @ 05:41 PM
originally posted by: Zaphod58
a reply to: bobs_uruncle
Contrails can be prevented, and heat signature nullified.
That would be quite expensive "energy-wise" considering the consistent march towards entropic death. Reminds me of a pump storage project where
first the engineers said they would create energy lol. Ummmm, something about physical laws seem to contradict that statement. Then the politicians
said the system would create as much energy as it used, even though the Francis combo turbine/generators were only 75% efficient. Hmmm, 1250 Mwatts
in, 750 Mwatts out, (sighing about now) politicians and salesmen can be such idiots, of course the people that follow and believe them are even worse
So, barring the use of some kind of Peltier effect based thermal heat exchange system, I think trying to hide that engine/exhaust heat signature is
going to be pretty tricky and as I said, very expensive ;-) They may be able to reduce the temperature of the exhaust using heat sinks and exchangers
(which reduce thrust and increase fuel consumption), however there will still be a nice elevated temperature differential up to a few 1000 yards
behind that little toy which of course points to a target. This all of course presuming that the drone in question uses a form of turbine rather than
something exotic like an inertial engine.
Like I said (above someplace), given the tools, the toys and the funding, I could knock that sucker out of the sky for half the cost they paid to
develop it, probably less.
Cheers - Dave