All -

This is my Gordon Englehart 1936 ARUP rc conversion. The original model was a 24" rubber powered craft, I extensively redesigned the wing ribs. It uses a hextronic 10 gram outrunner, AR6400 BL and two parkzone linear servos.Solite yellow and modelmaster red paint cover it. A 350 MAH LIPO fuels the 4.4 ounce ( 131 gram ) flying weight model.

The first video was made from my cell today during the second flight. The first flight flew out of my hand but after a few seconds went into a tight but slow flying turn. reducing throttle and neutralizing the stick allowed the model to straighten up and come down to a reasonable landing. An elevon end push rod wire had come unglued. At the same time it was noticed one linear servo had " dead " spots and would randomly just not function. A new servo was obtained and that was the cure....Got lucky with this slow, light model which went on to a 20 minute second flight, and many fine flights since.

the link is to my build log :https://www.rcgroups.com/forums/show....php?t=2617832

Arup 1936 model design by Gordon Englehart 24" wingspan (0 min 26 sec)

Second longer video added

1936 ARUP rc electric flying video (0 min 34 sec)

...Continue Reading

Hi Everyone-

Scanned from my issue of the June 1947 Flying Models - the Thor engine review. Most Editors didn't bother reviewing these " slag " engines so this is probably one of the few reviews published when these engines were new.....

enjoy,

jeff