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Old May 27, 2005, 04:03 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
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: http://www.rcgroups.com/gallery/show...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
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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
this place rocks!!!
wannafly1's Avatar
albuquerque,nm
Joined May 2005
223 Posts
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
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Old May 27, 2005, 05:23 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
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.
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Old May 27, 2005, 07:55 PM
Enjoy Life B4U Die!
Buzz_Man's Avatar
United States, GA, Powder Springs
Joined Dec 1999
4,258 Posts
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 . . .
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Old May 27, 2005, 08:02 PM
gpw
“There’s no place like Foam”
gpw's Avatar
United States, LA, New Orleans
Joined Jul 2002
24,162 Posts
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 ???
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Old May 27, 2005, 08:08 PM
Registered User
USA, IN, Greenwood
Joined May 2002
342 Posts
Dang Gene, slow down, cant keep up!! LOL
Nice one!
Mark
Indy RC South
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Old May 27, 2005, 08:33 PM
JAM
MaxAmps CMO
JAM's Avatar
Nine Mile Falls, WA
Joined Jun 2004
4,402 Posts
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
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Old May 27, 2005, 09:33 PM
Registered User
mjdee14's Avatar
Nashville TN, USA
Joined Jun 2004
1,324 Posts
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
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Old May 27, 2005, 11:00 PM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
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.
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Old May 27, 2005, 11:56 PM
"Experienced-Crasher"
Demon-Leather's Avatar
Rex, NC "Extreme Boonies"
Joined Jan 2002
2,355 Posts
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
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Old May 28, 2005, 08:21 AM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
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!
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Old May 28, 2005, 09:50 AM
Flying Models for 51 Years!
Sixter's Avatar
Georgia, United States
Joined Oct 2002
819 Posts
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
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Old May 28, 2005, 10:50 AM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
I've updated the drawings to include the 3 channel 'squarshed' fuse for elevon only. Hope someone gives me some feedback!
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Old May 28, 2005, 10:51 AM
Crash Master
Gene Bond's Avatar
Indianapolis, IN
Joined Sep 2001
16,632 Posts
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?
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Old May 28, 2005, 12:45 PM
Flying Models for 51 Years!
Sixter's Avatar
Georgia, United States
Joined Oct 2002
819 Posts
Gene

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

Sixter
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