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  1. PTAirco

    Sky-Tec manual C12ST2/S

    Having a persistent oil leak of on a C-85 from the starter and it's not the starter/engine gasket. Seem to be the starter itself. Does anyone have a manual or drawings for the insides of the Sky-Tec C12ST2/S starter? I seem to have used up my Google-Fu and there's nothing out there. You'd...
  2. PTAirco

    Low & slow CA to Oshkosh

    I'm trying to add more people to our proposed trip from southern CA to Oshkosh this year. I will be in my Aeronca L3, there will be one or two Chiefs, probably a very slow modified Super Cub so far. Any other slow aircraft would be welcome to join us. Aeroncas , Taylorcrafts (yes, I know they...
  3. PTAirco

    Aeroncas at Oshkosh

    It's the year of the Aeronca at Oshkosh. We got 100 special spots lined up and apparently I am No 90. I'm sure if more than 100 show up, they'll squeeze them in somewhere. Anyone else bringing their Airknocker? I'm planning to to take my L3 along with a couple of other Chiefs, Southern...
  4. PTAirco

    Becker 720B wiring

    I acquired an older Becker ATR720B recently to put into myL3B. It didn't come with a harness and I need a wiring diagram to make one.. Google has failed me. Anyone know of a source? I'll contact Becker but I was wondering if anyone had the info to hand. They have a two row 14 pin connector...
  5. PTAirco

    Lug design

    There are many different methods and rules of thumb and approximations out there for the efficient design of structural lugs. I tend to use the one in Bruhn, but I came across this useful site: Lugs
  6. PTAirco

    Scary ...

    Camel replica This is a Sopwith Camel look-alike (if you stand back 100yards and squint) with a welded fuselage. He has come across a bit of an "issue": where the lower wing attaches (and what looks like flying wire attachment) there simply is no crossmember to carry the load across! It is...
  7. PTAirco

    Alternative wheels/brakes

    I'm just getting over sticker shock at the current prices of Matco, Beringer, Cleveland offerings in this department. A few others out there too but generally a pair of wheels and brakes will now set you back $1500-4000. I'm talking about typical 6" wheels for something around 1500lbs of loaded...
  8. PTAirco

    Flabob Veterans Day

  9. PTAirco

    ATR720B radio (Dittel)

    I picked up this radio fairly cheaply. Came with 30 day warranty. I'm hoping to install it in my non-electric Aeronca. The rear plug is a weird mystery item. I found a wiring diagram for the 720A and apparently it's the same. There are various adapters out there that convert similar plugs to...
  10. PTAirco

    A-65 magneto puzzle

    Today's brain teaser: My 1942 Aeronca L3B finally flew after the FAA decided they tortured me enough and gave me my registration (17months, but that's another story). My friend do flew it around the pattern and all seemed good. Second outing today and we got rough running on the left mag. On...
  11. PTAirco

    Lone Pine Fly in in October

    Lone Pine fly in Also known as the Taildragger Jamboree (although even nosewheelers are welcome). Had a great time last year. The fly outs are fun and within the capability of most reasonable pilots and aircraft, though they also have some places only recommended for the high performance...
  12. PTAirco

    Set aside an hour....

    to look at all the amazing stuff the fellows are building and flying: Always interesting to see constructional details of old airplanes from continental Europe. Craftlab
  13. PTAirco

    Camshaft specs

    As a offshoot to the thread about the as yet hypothetical direct drive V8 idea: If I'm building an engine based on a common V8 there are literally hundreds, if not thousands of cam choices out there. I went down a rabbit hole the last couple of weeks and looked up everything there is on cams...
  14. PTAirco

    One year anniversary !

    It's been a year since I first submitted my registration paperwork to the FAA for my restored Aeronca L3B. Still waiting for the next round of "you need to change something on the bill of sale to xxxx" , followed by "why did you change..." I gave up last month and sent all the stuff to a...
  15. PTAirco

    Walter Mikron

    Ah, the Mikron; the cutest engine ever. I've hankered after one of these decades. One finally dropped into my lap. There was a sad looking Blanik motor glider here at Flabob for years. I guess the management eventually got rid of it but somebody snagged the engine and some parts and I bought it...
  16. PTAirco

    Direct drive options Chevy

    This topic has cropped up from time to time in many threads but usually as thread drift. While I'm waiting for dope to dry I thought I'd throw this out there. What I would like is some input about various ideas how best to go about this. I am always happy to see other people's ideas even if I...
  17. PTAirco

    NACA reports

    Whatever happened to easily accessible and searchable websites that have NACA reports?? I used to look at these all the time. The official NASA site has links that send you to a page that looks promising but it the results based on keywords are useless. Search - NASA Technical Reports Server...
  18. PTAirco

    COVID killed 1/4" steel rod!

    So weird..... I suddenly can't find 4130 steel rod in 1/4" diameter anywhere in the US. Except a few short overpriced bits on eBay. I need 100' of the stuff for the tie rods in my biplane. Don't waste your time googling....I did that for you. None of the obvious places, none of the specialists...
  19. PTAirco

    More FAA madness

    Recently recovered a Pacer wing in Ceconite. Sent in the 337:. Wing recovered with Ceconite process STC Number blablabla, using Ceconite procedure manual". All the usual stuff. Guy at FSDO comes back with "what kind of coatings were used"? Huh? It says "Ceconite procedure, Ceconite manua...
  20. PTAirco

    Buick 215 Trans bolt pattern

    I am seriously looking at a marriage of a 215 V8 and an airboat gearbox. However the Buick 215 has an oddball transmission bolt pattern and several hours on the interwebs did not result in any useful drawing of that pattern. Does anyone out there know of a source? All the more or less proven...
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