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  1. NX-4L

    Pulling versus pushing - which way is better?

    A few years ago a major university study on sports injuries failed to find a significant difference in the number of injuries sustained in a number of different sports after the introduction of improved headgear. Their conclusion was that human beings tended to play to an acceptable level of...
  2. NX-4L

    Pulling versus pushing - which way is better?

    Both Lockheed AH-54 Cheyenne, first flight September 21, 1967 54 ft 8 in long, 13 ft 8.5 in high 51 ft 3 in main rotor 2,063.2 sq ft rotor area 12,215 lb empty 25,880 lb max GE T64-GE-16, 3,925 shp 244 mph, max 224 mph, normal cruise 1,223 mile range 20,000 ft ceiling 3,000 ft/min initial rate...
  3. NX-4L

    Pulling versus pushing - which way is better?

  4. NX-4L

    Reduction Units and Propeller Sizes

    I think this is what I am doing with the comparisons of "optimal" pitch for highest rpm and highest torque on the largest permissible blade. For an A-65-8 it's at 2300 rpm and 2150 rpm Culver's charts say a 76" blade with 37" pitch should be "optimal" with tip speeds of 763 fps and 714 fps (M...
  5. NX-4L

    Reduction Units and Propeller Sizes

    Thanks to everyone who responded. For me (I'm not building the airplane just corresponding with the guy who is) it's an academic exercise to grow my knowledge on the subject. EDIT: It has been politely pointed out to me that my math is waay off as it regards several of the computations in this...
  6. NX-4L

    Aviation funnies

    CFIs make you do it over and over 'till it becomes second nature...
  7. NX-4L

    Aviation funnies

    That's eight times at 660' AGL...
  8. NX-4L

    Rudeness at a not so Super site

    Thanks... I'd rather hang out with my parents, or grandparents generation any day.
  9. NX-4L

    Rudeness at a not so Super site

    Way back in '67 Saint Louis (baseball) Cardinal great Stan Musial, Julius "Biggie" Garagnani, and Sid Salomon III were granted an NHL franchise in Saint Louis Missouri. In '73 Noel Picard retired after a long career, the final six seasons of which was with the Blues, and went to work the...
  10. NX-4L

    Rudeness at a not so Super site

    Just when it is said dismissively. Or as on BCP: "Well, you need xx hours before you try your hand at a a taildragger." That's funny, because 100% of my time is in hand-propped Cubs...
  11. NX-4L

    Rudeness at a not so Super site

    I tells it like it is. I learned to fly in a Cub, there are a thousand lakes and no airports for 90 miles. There are a couple Chiefs and Champs, a 'combe or two and a 170 somewhere... But half the planes here matriculated from Lock Haven. Put an E-2 and a PA-18-160 in an Excell spreadsheet and...
  12. NX-4L

    Rudeness at a not so Super site

    Supercub org... I tried to register and got an incredibly rude response, basically **** you Mary, which is confusing because I'm not Mary... And yes, BCP is, well, momma said if you can't say something nice...
  13. NX-4L

    Rudeness at a not so Super site

    In looking up subjects related to STCs and FAs regarding a J-3, a lot of search querries went to a so-called Super site. Super... KMA, what a rude owner / moderator. Is my experience typical? I mean they ask for $25.00 (which is nothing) but are a**h***s. No I'm not freaking Mary...
  14. NX-4L

    Reduction Units and Propeller Sizes

    A brief question (details follow for the interested). An acquaintance is building a two-seat parasol that has 183 sq ft of wing area, weighs 500 lb empty and has a 730 to 930 lb takeoff weight. It’s based on an early 1930s design and he will use a 50 hp two-cylinder, two-stroke with a belt...
  15. NX-4L

    Post your Builder's Log website Here.

    I was posting my L-4 build at Blogger and linking it here, but somehow I got banned at Blogger. Went in today Friday August 13, 2021... No idea how, especially considering the topic... Oh well...
  16. NX-4L

    Opinions on Wag-Aero's Sport Trainer

    The Model 8 (pre A-65, 8A) was approved for production on August 11, 1938, with a Cont. A-50-1. The wing ribs of the earliest aircraft were built up spruce trusses. Around 1939 and c/n 801 (I think at 833, because only aircraft bearing c/n 833 and above are eligible for metalized wings) the...
  17. NX-4L

    Opinions on Wag-Aero's Sport Trainer

    Perhaps not, but the aerodynamicists Piper hired when they designed the Super Pawnee (PA-36) agree with you. The Pawnee (PA-25) had the Super Cubs wings, and Piper had a detailed study made of airflow over the wings. Thousands of strings were glued to the surfaces so conventional photographs...
  18. NX-4L

    Opinions on Wag-Aero's Sport Trainer

    The drawing is a Wag-Aero Sport Trainer-- it used to be called a CUBy but Piper didn't like that-- on North-Aire 1000 floats. The plans are also sold by W-A, 5 blueprint sized sheets, $55. They were drawn in 1964 by a another company whose name is blacked out.
  19. NX-4L

    Opinions on Wag-Aero's Sport Trainer

    The only aircraft that I have ever flown I held onto the door frame and balanced on the right float to fuel, often from 2.5 gallon cans. Then after making sure the mags were grounded and pulling the prop through from behind to clear it I'd flip the switch on and bounce it to start. I's not hard...
  20. NX-4L

    Opinions on Wag-Aero's Sport Trainer

    My error, I misunderstood the term "clipped wings" and thought people were referring to squaring off the rounded wing tips. So, no... No clipped wings. It will have a stock J-3 empennage, the L-4 pattern fuselage, be powered by an A-65-8, have no electrical system, and have a single 13 gallon...
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