Announcement

Collapse
No announcement yet.

Engine for Swick

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Engine for Swick

    Hi All,
    I am building a clipped T-Craft (like Swick) and I need some advice from people with experience. I am trying to decide on an engine/prop combination. I would like to keep it light and use a Taylorcraft short motor mount. My two choices are a stock O-200 or a C-85 with an O-200 crank etc. No electrical system.

    Most of my flying (90%) will not be aerobatic, so I want to optimize for cruise speed. I can get a C-85 to put out about as much horsepower as the O-200 but at 2550 rpm instead of 2750 like the O-200. Or maybe the O-200 can be modified for a bit more power. I don't know.

    Does anyone have any actual experience with either of these setups? If so, what was your configuration (engine, prop), your max cruise speed, and your rate of climb?
    Thanks everyone,
    Hal

  • #2
    Re: Engine for Swick

    I have some time behind a 90 with a C-150 prop (69x50), and it worked well. I think if I was doing one right now I would do the 85 stroker. If you are experimental you can prop the engine to turn faster for more power. In other applications they will turn the engine up well over 3000 RPM with no problems. Tom

    Comment


    • #3
      Re: Engine for Swick

      Mine is a no-electrical, O200 setup with a 30 foot wingspan - data plate says it has an empty weight of 640 lbs - but probably a bit more since it has been repainted...

      Initial ROC according to the instrument is around 1200 fpm ... t/o distance on grass is about 300 to 350 ft. IAS cruise speed at 2200 rpm is 100 mph..

      fwiw...

      Thomas in NC

      Comment


      • #4
        Re: Engine for Swick

        I am not a big fan of the flat cam used in O-200's. They make no power. Call Don Dream Machine and see if he has any of the obsolete C-90 cams available. Also leave the 85 pistons and make sure you run helicoil style cylinders to clear pistons. That coupled with an ellison injection system should make for a stout power plant

        Comment


        • #5
          Re: Engine for Swick

          Wow, I posted this original question quite a while ago. Since then I bought a C-90-8F with a 74x48 prop. It worked well for the prior owner. I just hope that I'm not too old to fly it by the time I finish this project.
          Thanks everyone,
          Hal

          Comment


          • #6
            Re: Engine for Swick

            Originally posted by Ragwing nut View Post
            I am not a big fan of the flat cam used in O-200's. They make no power. Call Don Dream Machine and see if he has any of the obsolete C-90 cams available. Also leave the 85 pistons and make sure you run helicoil style cylinders to clear pistons. That coupled with an ellison injection system should make for a stout power plant
            What are these "helicoil style" cylinders? I know what helicoils are, but have never heard of a helicoil cylinder.
            Richard Pearson
            N43381
            Fort Worth, Texas

            Comment

            Working...
            X