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  1. proppastie

    Round number for heat treatment?

    we learn even if we do not answer what OP wants to know...this is the way this site works...... warps after solution heat soften? and forming will remove the warpage ? and it will not warp again when it age hardens?...... so Pazmany's ribs must had done it wrong. ( seem to remember him...
  2. proppastie

    Round number for heat treatment?

    probably most here saw this part of the quote and reacted to it......only thing I remember was L Pazmany saying something to the effect of "Pretzel" (warpage) there probably is a good reason why no one here will be able to give you a price they paid for this service.
  3. proppastie

    follow the plans unless you can answer that question yourself.

    follow the plans unless you can answer that question yourself.
  4. proppastie

    engineer help wanted

    What loading does that happen Is it past limit? Link?
  5. proppastie

    Source for Carbon Rods?

    My issue (currently today ) is 21" too much at 5g limit for 22ft. semi-span. For an aluminum structure fabric covered. Tomorrow the numbers probably will be different.
  6. proppastie

    Source for Carbon Rods?

    Some one told me the contest pilots will cross the finish at 180 and do a 5 g vertical pull up while voiding ballast "So they can get to pattern altitude " Which if you are not a designer is a good excuse.
  7. proppastie

    Airplane For Sale Bellanca Super Viking Airframe

    Did you get your money back?
  8. proppastie

    Airplane For Sale Bellanca Super Viking Airframe

    Were you able to trade the airframe for the engine?
  9. proppastie

    Airplane For Sale Bellanca Super Viking Airframe

    If the chapter is not carful they could be the start of a mostly worthless aircraft junk yard.......You sometimes get what you pay for.
  10. proppastie

    Performance Spreadsheet With Graphs?

    https://www.google.com/search?q=graphing+with+excel&rlz=1C1CHBD_enUS928US928&oq=graphing+with+&aqs=chrome.1.69i57j0i512l9.13513j0j7&sourceid=chrome&ie=UTF-8
  11. proppastie

    I need a carb rebuild kit for a Ken Brock Gyro with a 4 cylinder McCullough engine

    your first picture .....had to blow it up......Holly Model 1920.....second picture looks like a casting or part number...
  12. proppastie

    BlackFly Electric Ultralight

    I bet all those big motors are expensive......they are not "off the shelf drone motors" I would guess.
  13. proppastie

    California Bans Small Off-Road Gas Engines, Including Lawnmowers and Chainsaws

    new small off-road engines, as defined by the state board. Those regulations shall apply to engines produced on or after January 1, 2024,
  14. proppastie

    Sealants / Protectants for Polished Aluminum Aircraft

    just did 1/2 the Mooney .....today ..... just the red on top and sides as it was beginning to turn pink.....I went with Miguiare's...
  15. proppastie

    Source for Carbon Rods?

    How many g in a pullup? and any recommendations....
  16. proppastie

    Sealants / Protectants for Polished Aluminum Aircraft

    any conclusions? The Turtle Wax Hybrid Solutions I have says 12 months....I have done a test spot on paint after a cleaner to remove oxidation and it was easy to apply.....I am worried as to if it is safe but they say safe for wheels which are aluminum now days.
  17. proppastie

    Help / Brain Cells Request Continental O-300 Problem

    depends on how well you sleep at night..... as long as the engine will fulfill your mission it gets complicated.......all of your options have risks .... obviously if you can not taxi and take off without a fouled plug you will need to do something....probably starting with the least complicated...
  18. proppastie

    Help / Brain Cells Request Continental O-300 Problem

    had friends would scrub the alcohol out by putting the mogas in a tank with 10% water shake it up and decant the gas so you do not get the water/alcohol or drain the water alcohol/water first. somewhat a PTA.
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