Typhoon in a Thimble - How a Cox reed valve engine works

This is a video from a Cox Manufacturing promotional film from the 60's. I clipped out the portion that describes how a reed valve engine works so people can see how these wonderful engines run.

[@RC-Flight]

When I was 13 I had a great skill of wracking my finger in the spinning prop trying to start the engine. Man did that hurt!! The engine was in a purple Cox Mustang Control line airplane. The plane completely made of plastic, The best I was able to do was to get it to do one complete circle without crashing it into the ground.

[@Thundercat68]

Growing up in the 70s, I learned the fine art of how to sting curse words together trying to get/keep these little SOBs running. Those were the days.

[@truthboomertruthbomber5125]

I had these as a kid in the 60s . You got really good at taking the fuel tank off to clean grit from the reed valve. If there was even the tiniest speck of grit in there the reed wouldn’t seal and the motor would not run. In the later 70s I flew RC planes and on my smaller planes I used the TD engines which were rotary valve and not as temperamental about dirt.

[@bsimpson6204]

Wow! lovley advert, I had these engines as a kid, I have one now in the garage, it's never run, I must fish it out and try it

[@GameEssentialsTutorials]

Awesome video, I just bought two of these at a yard sale.

[@af235]

thank you! i always wanted to know how these worked.

[@patrickshaw8595]

I always wanted to make an RC P-38 using .049s because they are cheap and can run either left handed or right handed.

[@wwilcox2726]

Very cool 👍👍

[@adeedaas]

“In the thousands of an inch” - today’s engines are 2/10000ths if not tighter

[@lv2keepfit493]

I want one 😭