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Very Hot Topic (More than 25 Replies) Super Flash 54" (Read 1191 times)
Kaintuck
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Re: Super Flash 54"
Reply #27 - Jan 17th, 2020 at 4:49am
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Thanks!...it needs just a tad more nose weight even with that motor and batteries.....maybe, regular wheels instead of lite weight ones....
  
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Sky9pilot
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Stick & Tissue

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Re: Super Flash 54"
Reply #26 - Jan 16th, 2020 at 9:53pm
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That first shot showing that big outrunner motor is great.  I believe you when you say it'll take her up vertically!! Grin Cheesy Wink  I look forward to more progress!
  

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Your attitude will determine your altitude!- John Maxwell
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Kaintuck
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Re: Super Flash 54"
Reply #25 - Jan 16th, 2020 at 7:28pm
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One more
  

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Kaintuck
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Re: Super Flash 54"
Reply #24 - Jan 16th, 2020 at 7:25pm
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Ok, back on the super flash....I have the motor and servos in, and the horns. I will make a y site for the elevator, as it travels kinda weird...but ball n socket connectors should be good....the 2200kv is my 1st ďbig motorĒ....and with the 9x6 prop, WOW...it will hold the fuse vertical!!!
  

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Kaintuck
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Re: Super Flash 54"
Reply #23 - Dec 21st, 2019 at 7:38pm
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No picture tonight but, I covered the tail feathers today....the wing is next....Iíll get some pics if....if the tissue isnít all wrinkley and ugly.... Sad
  
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Kaintuck
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Re: Super Flash 54"
Reply #22 - Dec 18th, 2019 at 3:23pm
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JIM,
I do plan to radio it...but it will be 3ch, just to keep it within sight....and outta the trees.
Climb and glide, or let the kids learn on a easy flyer!
marc
  
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JimM
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Re: Super Flash 54"
Reply #21 - Dec 16th, 2019 at 11:27am
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It's not weird at all for a performance pylon F/F design - dependent upon moment arm and stabiliser area some  have  CG's at the wing trailing edge and are very stable.

If this model is to be radio guided then it may well require different rigging and CG as it won't be flying in the same manner as the F/F
  
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Kaintuck
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Re: Super Flash 54"
Reply #20 - Dec 15th, 2019 at 7:08pm
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Thatís weird cg area.....but we will try it....this build is on a short hold...the fella is setting up my radio, and Iím builder no the flyinflea....but this build is ready to cover, and I did start....I may put some time in on it over the holidays coming....
Stay tuned!
Marc
  
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JimM
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Re: Super Flash 54"
Reply #19 - Dec 13th, 2019 at 4:35pm
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Maybe 60 years later you expect me to remember where it balanced?    Grin     66% of chord sounds minimal, likely further back than that.  Nothing scary about a  lifting stabiliser (aren't they all?)... bear in mind that it's a F/F design by intention,
  
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Kaintuck
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Re: Super Flash 54"
Reply #18 - Dec 9th, 2019 at 3:32pm
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JimM wrote on Dec 7th, 2019 at 4:28pm:
I built a "Super Flash" back in the '50s. powered with an Amco 3.5BB diesel.† Flights were interesting; the only F/F known to have simultaneously destroyed three C/L Team Racers without damage to itself ........† † Roll Eyes


did you set the CG where it says?...2/3rds back from the LE of the wing???? lifting tail is scary stuff!!!....let me know....
I have started the covering process....tissue!! Smiley
  
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JimM
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Re: Super Flash 54"
Reply #17 - Dec 7th, 2019 at 4:28pm
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I built a "Super Flash" back in the '50s. powered with an Amco 3.5BB diesel.  Flights were interesting; the only F/F known to have simultaneously destroyed three C/L Team Racers without damage to itself ........    Roll Eyes
  
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Re: Super Flash 54"
Reply #16 - Dec 7th, 2019 at 8:19am
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Getting there indeed. Nice work and I'm along for the ride.
Mike
  

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Kaintuck
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Re: Super Flash 54"
Reply #15 - Dec 7th, 2019 at 7:30am
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Getting there....
  

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Kaintuck
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Re: Super Flash 54"
Reply #14 - Nov 30th, 2019 at 3:47am
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Thanks....that makes sense....
Marc
  
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pb_guy
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Re: Super Flash 54"
Reply #13 - Nov 29th, 2019 at 10:05am
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This is an interesting conversion you are working on. Why downthrust? When you fly your model, it is trimmed to descend in a smooth glide, power off. But under power it flies much faster, generating more lift than the Stab compensates for. The downthrust is intended to compensate for the increased lift of the wing and to make the transition from powered to un-powered flight smoother. In R/C planes, you end up trimming your elevator down under power.
ian
  
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