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  1. Replies
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    1,581

    I think you'll enjoy yours. I took mine out...

    I think you'll enjoy yours. I took mine out today to play under the clouds just after cold front passage. Winds were over 30 kts aloft and it was a day for superior judgment to overcome any...
  2. If you have verified 45 mph IAS at 1,750 lb, and...

    If you have verified 45 mph IAS at 1,750 lb, and if the airspeed calibration does not change significantly between 45 and 50 mph IAS, then Vx at 2,000 lb will be 48 mph IAS.

    Speed increases by the...
  3. [QUOTE=Narwhal;812760]This moves the curved total...

    [QUOTE=Narwhal;812760]This moves the curved total drag line in the above diagram to the right/QUOTE]

    To be complete - it moves it up and to the right. The family of curves for varying weight...
  4. Are you confusing speed with alpha? Just as an...

    Are you confusing speed with alpha?

    Just as an aside for those that think mass (wing loading) does not impact performance speeds - why do you think racing sailplane pilots often load more water...
  5. Sounds like a typical glider winch launch except...

    Sounds like a typical glider winch launch except that most glider pilots are smart enough not to rotate to full climb pitch attitude until high enough to recover from a cable break or winch failure. ...
  6. I suspect that careful flight test is the only...

    I suspect that careful flight test is the only answer.

    Have you ever verified that 45 mph IAS is Vx at 1,750 for your airplane, with your pitot static system, and your airspeed indicator? If...
  7. Replies
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    17,891

    The stub was intended to attenuate the UHF ATC...

    The stub was intended to attenuate the UHF ATC frequency and bench tests showed it did that quite well. It is not possible for the stub to attenuate the difference frequency. If the difference...
  8. FS: "PART 39—AIRWORTHINESS DIRECTIVES 1. The...

    "PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701.ß 39.13 [Amended] 2. Section 39.13 is amended by adding...
  9. Someone had to pick the original number. Perhaps...

    Someone had to pick the original number. Perhaps that number had some significance to the first owner. Did that make the original number a vanity number? If the next owner sees no significance in...
  10. Replies
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    3,863

    If there was one public use un-paved airstrip in...

    If there was one public use un-paved airstrip in Arizona that looked half as good as any of those on the course I'd be going there almost every week. I haven't operated on a grass strip for over 30...
  11. Replies
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    3,863

    I watched the Arkan STOL course...

    I watched the Arkan STOL course description/demonstration video and have no doubt at all that I could fly that course in my FX-3. However, I would not attempt to race that course trying to do...
  12. Replies
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    1,581

    No. FX-3 is limited to only one window open in...

    No. FX-3 is limited to only one window open in flight and has a speed limit of 81 MPH IAS with any window open. When I have a window open for photography I drop a notch of flap and fly well below...
  13. I called Avemco for a quote on my CubCrafters...

    I called Avemco for a quote on my CubCrafters FX-3. They would not quote for hull and refused to give any reason other than "underwriting policy". As a result I don't know if they had an aversion...
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    500

    That reference seems to conveniently ignore the...

    That reference seems to conveniently ignore the eligibility requirements of FAA Order 8900.1 Vol 5, Ch 5, Sec 5 para 5-1219 A. 2).

    "An individual working alone who applies for a Repairman...
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    500

    Assume an EAB aircraft was constructed over a...

    Assume an EAB aircraft was constructed over a period of time by several different builders each of whom sold the project to the next builder. The final owner who completes the build had no...
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    857

    Yes, CubCrafters uses vinyl for stripes, logos,...

    Yes, CubCrafters uses vinyl for stripes, logos, numbers, rudder checker board, and probably other trim areas.
  17. Here is one specification for PA-18 cable...

    Here is one specification for PA-18 cable tensions - https://www.univair.com/content/Piper-Control-Cable-Tensions.pdf

    I found some discussions on this site with opinions ranging from "must be...
  18. Replies
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    2,518

    Strongly disagree with this assertion. An...

    Strongly disagree with this assertion. An inexperienced tail wheel pilot attempting a 3 point landing and touching mains first will be very likely to get into a PIO as they attempt to recover from...
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    I certainly don't think it is. However, it does...

    I certainly don't think it is. However, it does not meet what I believe to be the definition of a 3 point landing.
  20. CubCrafters FX-3 AMM specifies 45+/-5 lb with no...

    CubCrafters FX-3 AMM specifies 45+/-5 lb with no temperature defined. What is specified aileron cable tension for a PA-18?
  21. How will that help? Sure the cable length...

    How will that help?

    Sure the cable length depends on temperature but how tension depends on temperature depends on the expansion of the cable and the expansion of the airframe that supports all...
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    2,518

    Well I could be wrong but I don't think it's...

    Well I could be wrong but I don't think it's possible to land my FX-3 3 point and full stall with full flaps. That wing likes to keep flying and I'm pretty sure full stall would be tail first. ...
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    2,518

    A three point landing is, by definition, a...

    A three point landing is, by definition, a landing in which all three wheels touch simultaneously (and stay down). A cross wind equivalent would be a two point landing with upwind main and tail...
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    2,518

    I always 3 point my FX-3 on my home airport's...

    I always 3 point my FX-3 on my home airport's 7,000 ft long, 100 ft wide, paved runway. The touchdown point markers I use are about 600 feet from the taxiway nearest my hangar. That seems like a...
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    ADS-B Out reports pressure altitude and GPS...

    ADS-B Out reports pressure altitude and GPS altitude. Neither is a good indication of the aircraft baro corrected altitude unless the proper corrections are applied.

    Remember that, below the...
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