posted on Aug, 9 2014 @ 08:35 PM
a reply to: boomer135
Spinning blades are really easy to detect. They have a Dopper signature that screams jet. Just think of a household fan. As the fan blades spin, the
distance from you to the blade is changing since the blade is not flat. Now do that as a jet turbine speed, and this back and forth motion is added to
that of the jet airframes radar signature.
Worse yet, the sharp blades are very broadband reflectors, meaning they are visible to a wide range of radars.
All that duct work on a stealth type aircraft really kills the efficiency of the engine, but I don't believe there are any alternatives. If plasma
stealth worked, they wouldn't be ducting and shielding.
Looking at the design, the other obvious issue regarding stealth is the engines are on the bottom of the plane. If possible, having the engines above
the airframe shields them from ground based radar, and also masks the heat signature.
If you watch the Red Flag games (which in theory reflects real life), they don't even fly the heavies until air supremacy (or maybe superiority) has
been achieved. [I'm thinking the lower level of superiority since in training they do shoot the heavies with Smokey Sams, so some ground units are
still alive druing the exercise.] That isn't to say a stealthy cargo plane wouldn't be handy, but I don't think this is it.