Who made this throttle?

Cox International Fri Jun 04, 2021 4:31 pm

https://www.ebay.com/itm/114485760730

dckrsn Fri Jun 04, 2021 7:25 pm

Yeah, Bernie. I saw that when it was posted initially, and was somewhat intrigued.
After studying her for a while, I started to think it was overkill for an exhaust throttle.
Looks like it might have a nice application on a TeeDee, coupled with fuel throttling, ala
the medallion exhaust/fuel throttles.
Appears to be a one off, by a talented machinist.

Bob

sosam117 Sat Jun 05, 2021 8:08 am

It might be a little hard to open/close the exhaust gate when the servo arm is in the wrong position?
The servo needs to go front to back to open/close the exhaust gate.
The servo arm is 90° to that so the servo would have to be mounted on the side of the engine (and not behind it)?

davidll1984 Sun Jun 06, 2021 9:26 am

Probably inspired by the mini and the espo larousse f1 cox engine rc control exaust

**Cribbs74** Sun Jun 06, 2021 6:29 pm

It could easily be rotated 90 degrees.

aspeed Mon Jun 07, 2021 8:03 am

The back clamp looks like a casting, maybe the other aluminum part too. Some kind of production attempt at one time. I bet there are more, not just a one off IMHO. Wonder how well it works.