COX TD.09

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  • 03/04/2009 at 3:24 am #41077
    gos
    Participant

    Can anyone tell me the month and the year the COX TD.09 was released for sale please?



    03/04/2009 at 5:36 pm #47059
    RONALD BENNETT
    Participant

    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.
    Ron Bennett

    03/04/2009 at 6:04 pm #47060
    LAITHE MARRA SR
    Participant

    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.

    03/04/2009 at 6:27 pm #47061
    DAN BERRY
    Participant

    I’m certain that it was available in the ’60’s. Probably ’63 or so.

    03/04/2009 at 6:31 pm #47062
    Peter Brocks
    Participant

    This neat web site http://www.mh-aerotools.de/airfoils/cox_frameset.htm
    says that production of the TeeDee .09 (#210) started in 1961.

    Thermals, Peter

    03/04/2009 at 8:47 pm #47063
    gos
    Participant

    Thanks guys for your information.
    I think Peter Brocks has the correct information as by my old magazines here, that’s about where the advertisments seem to start for it.
    Thanks again. 🙂

    03/04/2009 at 11:17 pm #47064
    JIM MOSELEY
    Participant

    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.

    03/05/2009 at 12:18 am #47065
    DAN BERRY
    Participant

    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.

    03/05/2009 at 4:06 am #47066
    JIM MOSELEY
    Participant

    I fly them in a 320 sq in design – compact, fast and competitive



    04/30/2009 at 1:56 am #47067
    Jim Jennings
    Participant

    Does anyone know where I can get a Radial style engine mount for the .09? If not what is the next best option? Also, any opinions on the .09 on a 403 sq.in. Maverick?

    04/30/2009 at 8:31 pm #47068
    JIM MOSELEY
    Participant

    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. acoholic@nt.net is the address I have from that time.

    A Maverick would fly okay but I feel a little towards the larger practical size.

    04/30/2009 at 10:37 pm #47069
    Jim Jennings
    Participant

    Larger than 403 sq. in.?

    04/30/2009 at 11:38 pm #47070
    DAN BERRY
    Participant

    Jim, you’ll be OK with the 400″ Maverick.
    I think the ‘other’Jim might be thinking of a regular 1/2A Maverick.
    Hey now, there’s a thought.

    05/01/2009 at 3:03 am #47071
    JIM MOSELEY
    Participant

    >I feel a little towards the larger practical size.

    What I intended to say was that I thought over 400 squares was on the large size for a .09 to haul effectively

    05/02/2009 at 12:03 am #47072
    Jim Jennings
    Participant

    Would the Cox .15 be a better fit?

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