18 years ago
I've given some thought to the subject of high speed R/C, and a recent
thread about speed records has prompted me to post.
First of all, I know that the following would not be AMA or NAR compliant.
I'll keep this to the realm of 'what if'.
Hypothetically, I've wondered about what it would take to fly an R/C plane
and take it supersonic.
For those here that are not familiar with high powered rocketry, it's a
subset of the model rocket hobby that involves rockets that can be hundreds
of pounds in weight and soar to astonishing heights (to the point of
needing waivers from the FAA). To fuel this sport, special large rocket
engines are used. These engines have some performance and thrust
advantages over the disposable engines you might purchase for a normal
model rocket and can be bigger then a coffee can.
Starting with one of these engines, say perhaps an 'L' or 'M' size, I
imagine that an experienced modeler (with a good aeronautical background)
could build a plane with a fiberglass or carbon fiber skin that could be
dropped from a carrier plane half a mile uprange from the R/C operator,
have its motor ignited, power past mach 1 in controlled, powered flight,
then be landed conventionally. If airframe stresses of turning within the
control radius ofthe radio (or visibillity of the operator) is a concern,
you could have more then one operator spaced across the range.
Legal issues aside, can anyone think of any technical reasons this couldn't