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  1. D

    Rotax 582UL DCDI Mod 99 LC FWF Power Package - VERY LOW HOURS!

    ...SOLD...SOLD...SOLD...SOLD...SOLD...SOLD...
  2. parkert51

    503 Rotax, props exc...

    503 rotax DCDI, Dual Carb, Oil Injection, Gearbox Rope start, 92 hours showing $1,200.00 OBO 58" Competition Prop, Ground Adjustable, Best Offer BRAND NEW! Tennessee Wood Prop, 66 x 34, left rotation, gearbox tractor or belt drive pusher BEST OFFER! Tennessee Wood Prop, 66x34 RHR, Small...
  3. D

    Gyrocopter engines newbie question

    Hello. Im new here. I'm not planning to build anything yet. Just learning. And somehow it feels right to learn from those who know by asking lots of possibly silly questions. Trying to figure out how to determine appropriate engine choices. So far I learned that weight to power ratio is...
    • Digitil
    • Thread
    • engine engine selection gyrocopter questions
    • Replies: 32
    • Forum: Rotorcraft
  4. Harley

    MY FIRST DESIGN AT A HOMEBUILT

    Hey Guys,:ban: First off don't laugh I didn't spend alot of time drawing these up, there more for getting an idea on a page. The 3 images are different ideas of the same project, and I am looking for your corrective criticism for scale and size of different parts. Of course there are no...
  5. parkert51

    New PSRU Design Competition

    I have an idea. I have a need for a tall PSRU for this new engine. I would consider holding a contest for the best design and the winner would receive a new engine as the prize which is valued @ $10,500. What do you guys think? Actually it was an idea given to me by a fellow member, but I...
  6. parkert51

    Flying BMW R1100S

    Seems to be a pretty good setup! Sorry that should read 1100s....
  7. parkert51

    New Engine

    I have an opportunity to acquire an engine company and everything to assemble said engines. I own part interest in a foundry currently so having castings done isnt a problem. I have a machine shop at my disposal and a warehouse for the assembly shop. This is a 4 stroke 2 cylinder making 80hp...
  8. halfscalemustang

    Astec Jaguar V-12

    Hello, about a three years ago i found a jag v-12 in an old machine shop and after years of asking i was finally able to purchase it. When i went to pick it up the seller had to ask, "what in the world do you want with this thing?" I replied "P-51 Mustang project". I have since caught alot of...
  9. cluttonfred

    Homebuilt radials

    I am not looking for a Twin Wasp or Cyclone, just a nice, low-revving, direct-drive engine, say 3 or 5 cylinders and modest weight and horsepower, say under 200 lbs complete firewall forward and about 40-60 hp. That would make a great engine for any number of small replicas and would sound great...
  10. Daniel Tyrkiel

    Why split pins are the safest option for securing bolted connections

    Hello, I don't post much these days, but I thought this may be useful. A salesman from nord lock came in to the place I work at the other day to peddle their special washers and showed us a vibration test using various nuts (plain, nyloc, ovalised, and their own of course) and the graph...
  11. F

    Engine Power to aircraft weight ratio?

    I am a beginner and want to built an aircraft all of my own, i.e. from the scrap. My aim is to built a single-seater, fly-baby style aircraft, the overall empty weight (including assumed engine weight of 100 lbs)should not exceed 500 lbs. Now, the question is, to select an ENGINE. Is there...
  12. mz-

    Citroen GS/Super Ami Flat Four

    Everyone knows how the Citroen 2CV and Visa twins have been used for many single seater aircraft. This larger GS / Super Ami engine is a seventies flat air cooled four cylinder engine in the 1 litre class and could be an upgrade to two seaters with somewhat similar tech still. Interestingly, it...
  13. radioinred

    Where's my choke?!?!

    Ok guys im really stumped with this one. I just got my hands on a mikuni carb (gratis) from a friend and I cant tell where the choke is on it! Theres no choke cable.... not even a spring port where I would expect to see one. The only markings on the dang thing are MIKUNI H9. Help if you can...
  14. radioinred

    HELP WITH SNOWMOBILE ENGINE!

    Hello all, I have just recently purchased a polaris colt 250 twin engine. It starts on the first pull everytime and it sounds great. My question is, Where can i find a belt reduction drive for it and more importantly how can i establish things like redline rpm, Does anyone know anything about...
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