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Dec 20, 2008  
KF Airfoil Testing!!!
 
     
     
     
     
     
 
Our Test Results:
  Remember, we are just doing a quick test to find the answer to these 3 questions:
  1) What is the best KF airfoil for the SU-35 high alpha project? (KF4 for sure on this one)
2) What is the best KF airfoil for the F-35 vertical take off project? (KF3 won this one)
3) What is the best KF airfoil for caring extra weight? (The KF3 Heavy Lifter)
       
 
KF1, The Original: We didn't like this one, though our small, unstable, torque, delta, canard plane might not be a good match for it. We expect better results with the KF1 on other planes. This is not something we will be using anytime soon.
KF2, The Most Common: We have used this one on the SU-35 and X-36 prototypes and love it. It makes the wing alot stronger, produces more lift and stability as well as speed.
KF3, The Heavy Lifter: This one is just an exaggeration of the KF2 really. Lots more lift is seen right away on this, but because of the extra lift, it's slower. We plan to use it on the F-35 VTOL as it will give us good lift at slow speeds.
KF4, The Aerobatic Speeder: This one was the show-stealer. First of all, it's much faster than all of them. The airflow is equal on the top and bottom which gives it self-made-stability. I was surprised that it was always flying straight even though I knew the plane was out of trim. The increased airflow makes the controls more responsive. Plus, at high alpha, the bottom step comes in handy giving it slow flying abilities. It's like having a speed wing with built in self deploying flaps as well as gyro stabilization. This will go on the Su-35 high alpha for sure. The discovery of the KF4 alone made this entire test worth it right there.
 
Overall, I can now confidently finish off the SU-35, start the F-35, and design future projects with the ideal KF wing providing the most efficient platform. These simple tests have allowed me to take the information that I have been reading about for years and now own it.
 
KF Flight Report 1 (6:54)
KF Flight Report 2 (5:46)
 
   
 
 
  Dick Kline set a world record of the farthest paper airplane using his KF airfoil! He wrote the book, The Ultimate Paper Airplane and has been on 60 Minutes, Good Morning America, and The Late Show with David Letterman.
 
In this 40 minute discussion Dick and Dave talk about the origins of the KF airfoil, how it got into RC, where else it can be found, and how anyone can get into the creative mindset to bring out the inner talents that are in all of us!
 
 
   
   
 
     
   
Dave Powers and Dick Kline Discuss the KF Airfoil
 
 
VIDEO 1: How Dick came up with the World Record KF Paper Airplane (6:12)
VIDEO 2: The KF Paper Airplane Out Flies the Wright Brothers (9:26)
 
 
VIDEO 3: The KF Effect in Cars, Trucks, and Golf Balls (9:21)
 
VIDEO 4: Dave's Future Plans for the KF Wing (9:28)
 
 
 
VIDEO 5: Personality Types and Super Heroes (7:14)
 
 
 
 
     
 
2009 Plans: SU-35, X-36, F-35 (5:18)
How To Make A KF Airfoil (1:38)
       
VIDEO 6: Dave and Dick Pre-Interview Off Air (3:13)
KF Out Takes (2:16)
 
 
 
 
 
 
Dec 6, 2008
X-36 Field Talk:
Crashed X-36 Field Inspection:
 
 
 
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