RST Engineering - JIm wrote:
Hey, Dan, you are posting in rec.aviation HOMEBUILT. I appreciate your
expertise, but your bias towards keeping large jet aircraft running is
showing. Have you BUILT a homebuilt:? Have you MAINTAINED a single engine
aircraft?

With all due respects, sir, if you have not, please refrain from those of us
who have.

Jim

Have you not seen synchro repeaters driven by vacuum gyros as used
in home built/ GA aircraft? Heading hold, perhaps? The little 26 VAC
inverter I mentioned is for synchro excitation for such systems. I have
two of them around here somehwere. Neither are mil-spec or STCed or home
made.

As for "large jet aircraft" bias the biggest I ever worked on was
C-141, the smallest was a Cessna 172. You can guess who owned the former
and the owner of the later has probably died of old age by now. I wasn't
aware O-2 would be considered "large jet aircraft" and I have experience
on recips. Most of my experience is on turboshafts or turboprops, this
doesn't make my ideas any less valid than yours.


I have never built a home built, but I have assisted and made several
sub-assemblies including instrument panels.

None of the synchro systems I ever used took 3 phase in. Transmitter
and motors both use single phase for excitation. Perhaps you'd care to
tell us what what Boeing/ USAF aircraft used 115 VAC 400 hz 3 phase power.

I suggested sources for synchros for you or anyone who might want to
play with them. If you don't want to try them, fine, maybe someone else
might.

As for refraining it's not your place to suggest I do anything of the
sort. This isn't a contest between us.

Dan, U.S. Air Force, retired