• Welcome aboard HomebuiltAirplanes.com, your destination for connecting with a thriving community of more than 10,000 active members, all passionate about home-built aviation. Dive into our comprehensive repository of knowledge, exchange technical insights, arrange get-togethers, and trade aircrafts/parts with like-minded enthusiasts. Unearth a wide-ranging collection of general and kit plane aviation subjects, enriched with engaging imagery, in-depth technical manuals, and rare archives.

    For a nominal fee of $99.99/year or $12.99/month, you can immerse yourself in this dynamic community and unparalleled treasure-trove of aviation knowledge.

    Embark on your journey now!

    Click Here to Become a Premium Member and Experience Homebuilt Airplanes to the Fullest!

Search results

Find deals on amazon
Advertise with us
Find deals on ebay
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
  1. G

    Looking for reading material

    Bruhn 1943 has wood info: http://babel.hathitrust.org/cgi/pt?id=mdp.39015002900697;view=1up;seq=5 ANC-19 might be useful: http://everyspec.com/DoD/DoD-PUBLICATIONS/ANC-19_APR1951_50481/
  2. G

    Lets discus TV

    I'll add that damping (energy removal via slipping belts or other schemes) is actually counterproductive in a torsionally "soft" drive. Vibration transmissibility at engine rpm above resonance is reduced with increasing rpm and least damping.
  3. G

    0-200. Just want to know?

    O-200 overhaul manual of Feb. 1980 shows 6-3/8 inches.
  4. G

    What is this budget Ultralight? Are there any catches/ design problems present?

    https://ca.groups.yahoo.com/neo/groups/cfair/info
  5. G

    21st century Volksplane?

    R1100 longblock with flywheel and clutch is ~122 lb.
  6. G

    Bent metal prop, repairable? Worth anything?

    The 1973 edition of the McCauley overhaul manual shows 18.5° maximum bend at 34 inches radius.
  7. G

    EA-81 + Weber carb.

    Rockauto.com has Standard Motor Products overhaul kit for the Hitachi carb at $28.79 + $10.93 post to Prague.
  8. G

    Biplane Aircraft- Design

    Post. I still have mine in its monogrammed leather case. Dunno whether I can still run it, though......
  9. G

    Engine hasnt run in 15 years

    The propeller runs at one half crank speed. Tiara 6-285 is rated 285 hp at 4000 rpm continuous. Most of the production was installed in Piper Pawnee Brave agplanes; if any of those are still in service, the operators must be desperate for parts. Many were converted to IO-720. As I recall, the...
  10. G

    Opposed piston engine re-visit

    I found this timing map on some British VW TDI forum, so I don't know the source or accuracy of the info. It looks mostly reasonable to me. I think the Skoda is one of the highest fuel rate models of the 4 cylinder TDI. It appears that large fuel additions per cycle, if the computer allows it...
  11. G

    stick welding?

    Not only Stinson, apparently. This photo from the Aeronca factory shows 1935 K and L airframes along with a motor-generator arc welder and not an O-A torch in sight.
  12. G

    Designing new Aviation ECU

    The 555 scheme is incredibly simple and dirt cheap. It is not for GDI, though.
  13. G

    Non-conventional Brake Ideas

    That's good if it does what needs to be done.
  14. G

    Prop Safety Question (Another Prop Question)

    Re: Prop Safety Question (Another Prop Questions) Physicist Chuck Beaty (cabeaty) posted on the Rotary Wing Forum this formula for a constant section rotor blade: F cent. = 0.000341 WRn² lb. = lb. ft. rpm
  15. G

    Can You Identify This Franklin 2-A Engine?

    https://easa.europa.eu/system/files/dfu/EASA-TCDS-E.086_Franklin_2A--120_series_engines-01-17082006.pdf
  16. G

    Aluminum Casting

    Forklift and other vehicle propane tanks are designed to deliver liquid fuel out the hose, whereas the other type (BBQ, RVs) delivers vapor and in fact has an automatic valve that shuts off the fuel if the tank is tipped enough to get liquid at the outlet (in North America, anyway). The cast...
  17. G

    Aluminum Casting

    Yes. Buy or borrow this book: CASTING ALUMINUM C.W. Ammen 1985 1st ED 2nd Printing CAST ALUMINUM (more is not better wrt Ammens's books; they are mostly the same except this one focuses on aluminum). I built an electric furnace with perlite insulation, vertically placed firebricks cut for...
  18. G

    Hello, worried dad here

    I don't see the harm in his designing an ultralight or two or five. It will dovetail with his studies. That he designs a flying machine doesn't mean it will get built and flown. The objective is to learn.
  19. G

    Yet another VW power argument. Again.

    I've posted this shot before from the Jan. 1977 edition of Implement and Tractor Red Book which is presumably based on VW factory literature: From this I conclude that VW was not comfortable with providing warranty on the Type 1 industrial engine at more than 46 continuous horsepower, while...
  20. G

    Materials and hardware conversion question

    If the only difference between 2 screws is grade 8.8 or grade 12.9, both will enlongate the same amount at any given torque up to the point that the 8.8 spring yields. The 12.9 spring will stretch farther at higher torque, providing greater clamping force up to the point that it yields. E is the...
Back
Top