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  1. Boundary Waters

    Regulatory Questions: Aeronca 7EC

    A-759 (Rev 73) February 9, 2011... 307. Battery (a) Willard AW-12-25 (Model 7EC only) 24 lb. (+54) (b) Bowers BA-25, 12V Model 7EC only Models 7FC, 7JC Models 7GC, 7GCA (with cables), 7HC 24 lb. 24 lb. 28 lb. (+54) (-27) (+79.5) (c) Exide AC-60, 33 a. hr.; AC-66, 33 a. hr.; AC-78, 35 a. hr. 12V...
  2. Boundary Waters

    Regulatory Questions: Aeronca 7EC

    Thank you. That was a documented and succinct answer!
  3. Boundary Waters

    Regulatory Questions: Aeronca 7EC

    I'm not a mechanic, and didn't spend an hour studying it, but there are generators, voltage regulators, starters, and batteries on the TCDS. So a 337 would not be required to install THOSE particular items. Obviously it should be noted in the aircraft maintenance record-- but legally that can be...
  4. Boundary Waters

    Shifting CG forward

    I have 285... pop... 284 helium balloons in the back of my Luscombe right now :) It's an elegant solution, they don't have to be tied down if they fill the available area and they stay up off the control cables on their own. I just have to make a trip to the party supply store every couple...
  5. Boundary Waters

    Regulatory Questions: Aeronca 7EC

    A friend is looking at a mid 50's Champion built 7EC. This is a list of my (unanswered) questions pertaining to that particular airplane. FWIW, the potential seller has a copy of the official aircraft record CD from Oklahoma. (1) It was built and originally certified with a C-90-12F, said...
  6. Boundary Waters

    Shifting CG forward

    Is dark roast heavier than light roast?
  7. Boundary Waters

    Shifting CG forward

    23 gallons at a bit under 4 gallons per hour in my buddy "Chief" Daniel's 11AC... Fun, took along a bottle of spring water, not coffee.
  8. Boundary Waters

    The things we find, hopefully.

    No, but I could try. I have an old xerox of the original (stained and damaged with some of the paper worn through and data missing). The list is not very specific, EG: "Engine" "Propeller" "Heter" (sic) "Wheels" without further explanation. "Hey, it's got a prop, raht thar up front! Whatcha...
  9. Boundary Waters

    Luscombe Weight and Balance

    There is a Ceconite Instruction Manual over at Aircraft Spruce that has weights of different covering systems per square yard when completed per guidelines. A J-3 (178.5 sq ft wing area) was given as an example-- my 8A has 140 sq foot of wing area and a similar Clark Y derived airfoil. Ceconite...
  10. Boundary Waters

    The things we find, hopefully.

    A-694 has been around. Currently it is held by GEO / the Good Earthkeeping Organization, a Corona California environmental remediation company. They obtained it from Renaissance Aircraft LLC of Cape Girardeau who had apparently built a few 8Fs (one source says 12, another 16) as LSAs in the...
  11. Boundary Waters

    The things we find, hopefully.

    We have a copy. There is not nearly as much as I thought there would be after 75 years, but it really hasn't been modified. "Look, it has a FA for the baggage compartment and a mogas STC." We have the paper log books as well, some of the oldest entries are a hoot for their brevity. IE: "R&R...
  12. Boundary Waters

    The things we find, hopefully.

    A question was posited to me elsewhere. My aircraft was certified with narrow tires, tail skid, single ignition engine, 17 lb. prop, and no cabin heater. The factory weighs one aircraft and uses its weight for the next X number of aircraft, supposedly periodically double-checking the accuracy...
  13. Boundary Waters

    The things we find, hopefully.

    Technically, we interleafed procedures and completed both safely and correctly. It is conservative, like rounding a weight up, but it isn't an opinion. To weigh the aircraft without residual fuel in it would directly contravene the wording in the manual that it be drained and "The amount of...
  14. Boundary Waters

    The things we find, hopefully.

    I don't believe that I said there was... Later, I made a non-specific reference about there just plain being a lot of unsupported conjecture in GA. Technically you are correct. But I like information. I'm the only person truly responsible for my own safety in the air. We could have just put...
  15. Boundary Waters

    The things we find, hopefully.

    (First, I truly appreciate those who are making the effort to share their accumulated wisdom with me.) Looking at AC 43.13-1B, Acceptable Methods, online... This would be the "FAA manual stating that unusable fuel be included in the aircraft's empty weight." from my earlier post. The A&P's copy...
  16. Boundary Waters

    The things we find, hopefully.

    The later Luscombes had paired wing tanks, IIRC first 11.5 gallons and later 12.5 gallons apiece. But the 8, 8A, 8B, and 8C all were built with a single 14 gallon fuselage tank.* There is a lot of conjecture about exactly how much of that fourteen gallons is usable-- which should not to be...
  17. Boundary Waters

    The things we find, hopefully.

    The most significant reason for the big annual / cosmetic restoration on my Luscombe 8A was replacing the 75 or so year old fuel system, tank, lines, hoses... So when it went back together it had an empty fuel system. The A&P got it up on the scales and we weighed it. So we recorded the weights...
  18. Boundary Waters

    Luscombe Weight and Balance

    That is EXACTLY what it does. So does pulling the throttle back just a little bit... No, I have a Luscombe 8A with an A-65-8, hand prop, counter-clockwise tach. All the good stuff... None of the fancy stuff... From Univair (configuration as built) 8 1937-1940 A-50 1130 lb., 113 blt., Fabric...
  19. Boundary Waters

    Luscombe Weight and Balance

    The 8A has a single 14 gallon fuel tank located just behind the pilot and passenger's heads (+40) suspended right over the baggage compartment (also +40). It is a flat oval shape (like the numeral "0" on its side. So it obviously has little space for fuel to hide in, from left to right. It has...
  20. Boundary Waters

    Luscombe Weight and Balance

    I learned to fly in an A-65-8 powered Taylorcraft. I'm 150 pounds, my instructor probably 180-190. Flying out of 600 to 1100 foot above MSL with 72 pounds or less of usable fuel and no baggage was never a problem, but I could easily feel the difference. I guess all of these little airplanes...
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