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My latest addition, The Hawker Hunter!

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My latest addition, The Hawker Hunter!

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Old 06-08-2018, 08:56 AM
  #51  
Frank Alvarez
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Hello David,

Thank you for the info on the protective wing and tail bags! I'll be looking into them for sure.
By the way, how is your Hunter shaping up?
Frank
Old 06-08-2018, 09:21 AM
  #52  
David Searles
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Frank,

Only need to set up canopy open/close mechanism and cg. Ran out of motivation last month. Going to finish in next week or two. I want to bring it to JOK. I'm driving the RV out this year. Will you be there?

David

Last edited by David Searles; 06-08-2018 at 09:30 AM.
Old 10-25-2018, 09:45 AM
  #53  
flymanjg
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Frank, Did you make the canopy operational on the Hunter. Any help would be appreciated.
Old 10-26-2018, 01:34 PM
  #54  
Frank Alvarez
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Yes,
Canopy is jack-screw servo operated.
I’m away from home at this time, I will gladly provide type, stroke length and manufacture for you when I get back.
The actual attachment to the canopy frame is rather critical as I learned, as the forward/aft force will easily bind if not attached correctly.
Be delighted to share that with ya when I get back .
Franko
Old 11-17-2018, 10:31 AM
  #55  
i3dm
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Hello guys.
whats the recommended CG for the FB Jets hawker hunter?
Old 11-17-2018, 12:21 PM
  #56  
sewbusy
 
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Originally Posted by i3dm
Hello guys.
whats the recommended CG for the FB Jets hawker hunter?
Look back on post #30. It has been stated there.
Old 11-17-2018, 12:23 PM
  #57  
i3dm
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Originally Posted by sewbusy
Look back on post #30. It has been stated there.
thanks for the reference.

​​​​​​​
Originally Posted by Frank Alvarez
Hello furloughed!

I've installed a 38 lb thrust turbine and due to its light weight, along with its peripherals, the total weight added right in the most forward (radome-like) area is 4.75 lbs!
I did "not" use their specified C/G of 130 mm beyond the axle center. My starting point was 115 mm, and after four flight on the jet, I've moved it back another 8 mm since. The manufacturers always tend to strive for an extremely conservative forward c/g. And I don't enjoy the resultant pitch-down moments when in an "other" than level flight attitude. I will most likely settle on the 90-100 mm point when time and additional flight work-ups allow.
Feel free to fire off any other inquiries.
Take care,
Franko
where did you settle on the final CG after further flights?
Old 11-18-2018, 07:38 AM
  #58  
Frank Alvarez
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Originally Posted by i3dm
thanks for the reference.


where did you settle on the final CG after further flights?
Hello,
After about a dozen flights with new Hunter. I determined that the 105-110 mm CG is perfect!
The fuel burn-down during flight will transition the CG toward the aft point I've listed. The aircraft has absolutely zero bad handling qualities at these points.
The only weak point on this design is the landing gear carbon mounting area's! As delivered, the factory is not generous with the application of their version of HYSOL?
I strongly recommend removal of the flap area to drill HYSOL access points along the trailing edge to ensure a good coating of HYSOL along the gear plate box area's that you can not reach thru the gear areas!
Good luck with your build, it is otherwise a very strong structure.
​​​​​​​Franko

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