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Old May 27, 2005, 04:03 PM
Gene Bond is offline
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Build Log

4F-51 Fat, Flat, Floppy, Foamy


Been playing with cartoon scale again, and wanted to do a tail-less plane for a while... So why not?

Plenty of wing area! Plenty of Power!

Used EPP sheets from www.slofly.com, and a 18"x1/8" c/f tube for a spar, but FF or Depron would work fine (Just reduce the wing slot accordingly).

Specs:
24x 12 wing + 4" elevons
384 sqin
6.5-7 oz
2.7 oz/sqin
15t CDR, 8x4HD prop
2s830, 7.6a, 53w
9.7oz thrust, 29mph
120W/Lb
4 channel, elevon, rudder

I love the way it flies. Much easier to fly than my IFO! Looks to be a torque-roll monster. I haven't had any still air, but early attempts show a lot of promise.

No reason we couldn't do all kinds of profiles in this fashion!

Here's a video: https://www.rcgroups.com/gallery/sho...cat=500&page=1

(Pictures show early elevons, they are 2x as wide now )

Oops, added the full size, non-tiled pdf's...

Edit, for search engine? 4f51, fat flat floppy foamie, mustang,
Edit: Added GPW's XP-39 files
Edit: added full size E w/ grid
Last edited by Gene Bond; Aug 29, 2007 at 07:47 AM. Reason: New video
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Old May 27, 2005, 04:32 PM
wannafly1 is offline
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this place rocks!!!
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do you have any video it looks cool and im getting some FFF tomarrow and want to make somthing asa i can lmk also do you have close ups of the elecs. n stuff LMK thanx----erik
Old May 27, 2005, 05:23 PM
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No video yet, maybe tomorrow.

You can sorta see all 3 servos. I set them where I thought it would want to balance, which BTW seems like a pretty wide area for battery placement.

Right now I'm flying it with a cg at 3.75" behind the LE at the root. I'm sure that's nose heavy (23%), but it seems to handle it fine in the wind.
Old May 27, 2005, 07:55 PM
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Fly safe, fly often!
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Very nice! Would it fly without the rudder - with elevons only? I'd like to make an Air Cobra, then a P51D, then a Spitfire, then a . . .
Old May 27, 2005, 08:02 PM
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Pretty darn COOL !!!!!!!! Makes me want to buy epp... got the plans , THANKS!!!!!!!
and could you please describe that motor better ...wire guage, etc... I built a couple 15 t 26awg ,and I'm afraid to run them on more than a 6x4... too conservative ??? again ???
Old May 27, 2005, 08:08 PM
mcrabby311 is offline
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Dang Gene, slow down, cant keep up!! LOL
Nice one!
Mark
Indy RC South
Old May 27, 2005, 08:33 PM
JAM is offline
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Gene, I've been reading about you wanting to do this for some time...... and wow you did a nice job. I got the plans now it's time to get more foam. Great work

TM
Old May 27, 2005, 09:33 PM
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OH No!!! Time to clog up the bathtup drain with story board paper!!!

Don't you ever work???

Looks like a real fun design....can't wait to see the videos....

Gene...keek them coming.....my harddrive isn't any where near full!!!!

Mike
Old May 27, 2005, 11:00 PM
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Like I said, it should work with 3 channel, elevons only, just need to shorten the tail. I'll work on it in the morning

Glen: 15t can fit 24g no problem. Even at 26g, the 8x4 is where it's at. Just check the temp every now and then.
Old May 27, 2005, 11:56 PM
Demon-Leather is offline
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Hey Gene...


Will blue Fan fold be too heavyto build this one? If I skin it will that help?? Kool plane, by the way! had to sign on to this one! Bob
Old May 28, 2005, 08:21 AM
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Yup, FanFold should work fine... Still would be 4F (Fat, Flat, FanFold )

It's about the same weight as the EPP (11/32") I used. I just knew I was going to be bouncing it a lot!
Old May 28, 2005, 09:50 AM
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Flying Models for 52 Years!
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Gene, GREAT WORK!!


This has got to be the Coolest Looking P-51 on e-zone
What about a P-40, Hell Cat, P-47, or a Air Cobra. Thanks
for the plans

Sixter
Old May 28, 2005, 10:50 AM
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I've updated the drawings to include the 3 channel 'squarshed' fuse for elevon only. Hope someone gives me some feedback!
Old May 28, 2005, 10:51 AM
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Yea, Six, there's no reason why they can't be done in the same style... Just gotta do it. Maybe a Zero first, for some dogfighting?
Old May 28, 2005, 12:45 PM
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Flying Models for 52 Years!
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Gene


A Zero sounds GREAT!! What about a J-250 for power!!

Sixter


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