I believe it was first announced to the public at the Toledo trade show i January 1986. I do not know when COX shipped the first units to dealers. I’m sure production prototypes were given out in late 1985.
Hmmm? Are You sure it was 85′ or 86′? I have a NIB Tee-Dee .09 that I bought when I was in High School. I graduated in 82′! I just looked @ the paperwork in the box, it says “CARE AND OPERATION OF YOUR TEE DEE .049′.051, & .09 ENGINES.” Copyright 1974.
I go with Peter. I was flying a TD.09 at Topcliffe, England, in the mid-60’s and I’d had it some time, then – in fact I’d bought it used from Sherwoods, near Leeds . In my opinion the best TD of the range, under-estimated by many. Still a favourite powerplant.
I have heard that the 09 has one of the highest power-to-weight ratios of any model engine.
It tends to require an odd-size plane that is suitable for no other engine. Might explain a lack of popularity.
If you mean a radial backplate, rather than a commercial mount, Andrew Coholic machined several for me a number of years ago and will certainly have patterns to make others. email@example.com is the address I have from that time.
A Maverick would fly okay but I feel a little towards the larger practical size.