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  1. Sraight'nlevel

    Blended wing ACs are coming !

    Are you ready ?
  2. Sraight'nlevel

    Power to weight ratio !

    I was discussing here about power to weight ratio. It seems to be pretty vague to me. How is it really calculated ? I used full power and full weight when defining A2D Skyshark power to weight ratio. What is it usually ? Is it the best power to weight ratio on take off with full load ( as...
  3. Sraight'nlevel

    Boom boom boom boom

    Prototype has flown.
  4. Sraight'nlevel

    Did USAAF and NAVY fly PZL 11s in WW2 ?

    In the start of this video.
  5. Sraight'nlevel

    Is this for real ?

    Is he cutting the foils from solid wood plank ?
  6. Sraight'nlevel

    Could a well seasoned homebuilder build himself a vehicle that run on the streets ?

    Like a car or sumptin ? Any ideas ?
  7. Sraight'nlevel

    Aeroplane not good for launching ?

    Everyday Astronaut is scheduled on a Starship launch around a moon. He reveals lotsa positive features in air launch. https://en.wikipedia.org/wiki/SpaceX_Starship
  8. Sraight'nlevel

    Could a wooden sailplane beat a fibre glass/carbon sailplane in L/D ?

    I checked a 1961 sailplane had L/D of 34.
  9. Sraight'nlevel

    Crossing the Atlantic Ocean with a homebuilt jet or an electric aeroplane.

    I wish there was a prize for this category. I am talking about under 3 000 kg flyweight aircraft....not Virgin Galactic Global Flyer nor Voyager kinda behemoths. Why this is here is that I'd like to discuss what new we have to invent what we don't yet have ? I refer to the speech of JFK at Rice...
  10. Sraight'nlevel

    Duramold/Weldwood/Haskelite !

    Cheerios ! For the past 8 years I have used Virginius Clarke method kinda approach to make wood composite that is stronger than aluminium but still lighter. Now I figured how I can cut the time making it into 1/4th what is was few years ago. Anyone else making compressed wood ?
  11. Sraight'nlevel

    Exciting airfields around the world !

    Wushan airfield at 1771 meters altitude. https://www.ichongqing.info/2022/03/29/wushan-airport-offers-unique-sky-high-gateway-to-chongqing-northeast-james-vlog/
  12. Sraight'nlevel

    Steel bird outa 0,5 mm stainless steel ?

    I saw few videos that got me thinking.
  13. Sraight'nlevel

    Any way to make those so called aerobatic planes any safer ?

    They have huge engine and travel 400+ km/h. Wing foil creates almost no lift (half of a campered foil). Am I on wrong tracks or am I right ?
  14. Sraight'nlevel

    Less known aviation wonders !

    Bartini Stal-6:
  15. Sraight'nlevel

    1 000 km/h speed with a prop plane ?!

    Tu-95 goes 925 km/h ...Rare Bear reached 850 km/h. What would it take to get that last 100 mph velocity before the speed of sound ? 620 mph = 1000 kmh. Speed of sound is at 761-767 mph and 1225-1235 km/h. https://en.wikipedia.org/wiki/Speed_of_sound...
  16. Sraight'nlevel

    How to make trailing edge longerons outa wood ?

    How would you do it ?
  17. Sraight'nlevel

    Aircraft pricing !?

    I am somewhat surprised that a popular 2 seater high wing electric AC that hardly flies an hour costs $200 000 or more today. I figure I could double the range in a homebuilt of a one seater under 30 000 dollars. Where does the price come from .....generally ?
  18. Sraight'nlevel

    The greatest contributors to aviation throughout the ages !

    I bring you the 6th baronet...Sir George Cayley https://en.wikipedia.org/wiki/George_Cayley
  19. Sraight'nlevel

    Kuchemann's "coke-bottle"

    Whether it was Whitcomb or Kuchemann....the area-ruling is a fact. I like the number 6 on this table....from above ( only ). For a Reno racer perhaps ?
  20. Sraight'nlevel

    Suitable/favorable Reynolds number for an aeroplane wing ?

    How big a role the Reynolds number plays in the aeroplane design ? I mean is 300 000 how much less than 2 000 000 ? Can it be described somehow ?
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