I have this little engine sitting here, and its bugging me - what brand/model is it?
Nitro/glow engines aren't my forte, so I thought I'd put it to you guys - the pros - for your input.
It has no brand markings, stamps or numbers, only "made in U.S.A" casted on the rear. It's spring-assisted prop start, with "Tornado" on the prop (unsure if aftermarket prop).
Other things that appear to make it different than what I would call "regular" glow engine are: rear intake, with a small clear plastic/sprung valve, the piston and conrod are of a ball/socket arrangement, and the head has 4 horizontal slits - 2 per side, directly into the cylinder for what I assume is exhaust.
PICS (click the smaller ones to enlarge):
![Image](http://i55.tinypic.com/2helmpd.jpg)
![Image](http://i55.tinypic.com/wts40_th.jpg)
![Image](http://i53.tinypic.com/2vacvie_th.jpg)
![Image](http://i53.tinypic.com/25sbjiu_th.jpg)
![Image](http://i56.tinypic.com/sxg6zp_th.jpg)
![Image](http://i51.tinypic.com/2z9fg4h_th.jpg)
Any idea of brand or approximate era?
Thanks in advance to any and all replies.
wacky.