Putting this here, rather than one of the apparently more relevant forums, because it's so low probability as to be dumb. But.
You're at the hold short line at a controlled field. You have not been cleared for takeoff. There is an airplane behind you. You suddenly lose both radios and transponder (say... electrical system failure.)
What do you do?
* Can't back up, can't turn around, can't (shouldn't) go onto active runway.
* At my class C, it's a big no no to exit the plane outside the non movement area (class C).
let's assume you can't call on a cell phone. What now?
These days I'd use my handheld radio.
When something like that happened to me almost 40 years ago, it was a different story. First plane was a straight tail Cessna 150. After my partners got their licenses
we decided to move up to a 182. So the 150 was surplus and we put it up for sale. It was a fun airplane - but had its shortcomings, like lack of space, lousy brakes and
antique radio. Of course we didn't want to spend any money on it.
So one day it fell on me to demonstrate it to a prospective buyer. The preflight was uneventful, so we started up and did a normal runup on the ramp - also uneventful.
Obtained taxi clearance to the runway, then went to call the tower for takeoff clerance. Now the shortcomings came into play. The radio was an old "coffee grinder"
containing vacuum tubes - and a vibrator power supply. You had to speed up the engine a fair amount for the generator to start producing juice - and bring the supply
voltage up enough for the transmitter to work as intended (I was well acquainted with the problem). So we cranked 'er up to call the tower. At that point one brake
went flat and we pivoted off the taxiway into the grass. We shut down the engine, got out, and pushed the plane back onto the pavement. Had to prop it to do a restart.
Went back to my mechanic's shop (which was fortunately right nearby), had some fluid added, and went back for another try. This one was uneventful - and he bought
the plane!. I am sure the guys in the tower had a good laugh over it - nothing was ever said about it.
Dave