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Old Jul 14, 2012, 01:51 AM
Sir Jasper
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Christchurch - New Zealand
Joined Jan 2003
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Quote:
Originally Posted by Applehoney View Post
"Hazey" decently dressed

36" span, 14" prop, 58 gms (less tracker)
Good luck Jim, looks good.What is the weight of the motor? (rubber)

Mark
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Old Jul 14, 2012, 03:08 AM
flight999
England
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She does look better dressed Jim. Good luck with your trip.
Thermals all the way.
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Old Jul 14, 2012, 06:09 AM
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Good luck at Genesco Jim.

And that is a really nice crisp version Pat.

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Old Jul 14, 2012, 09:06 AM
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Ajax, Ontario, Canada
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>.What is the weight of the motor? (rubber)

Dunno yet. Will try 30gms for a start... maybe move to 35 depending upon how it shapes up
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Old Jul 14, 2012, 02:18 PM
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USA, IL, Wheaton
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Comet Phantom Fury

Just finished Comet Phantom Fury from a Comet Kit. It has 32 inch wing span and about 100 square inches wing area. It weighs 45 grams with 5 grams of rubber and 2 grams of clay in the nose. Seems to fly best with CG at 50% chord. Checked it after adding clay by holding up the wing tips. Has a stab of about 27 square inches pushing the center of lift back a bit. Stuck pretty close to box color scheme.

Joe
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Old Jul 14, 2012, 03:28 PM
1:1 scale is fun!
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Nice Phantom Fury! A real classic.
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Old Jul 16, 2012, 11:14 AM
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USA, IL, Wheaton
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First Flights - Phantom Fury

Thanks for the compliment. Now to get it to fly as good as it looks.

Took it to an old timer contest in Wisconsin yesterday. The 5 gram motor (4 strands 1/8 inch Tan Sport from FAI Supply 13 inches long) was enough at 500-600 turns to get a little starting height into about 5 mph winds. After that, got a quick left turn and a relatively straight 50 feet or so down wind, followed by a Dutch roll to inverted and a fairly short trip to the ground. Had better times with my Delta Dart. Have seen posts that say fins on these old planes were a bit too large, but I think small warps in the stab were probably to blame.

A bit of a handfull to wind with the tail joint, and need a better cradle for the front section on my stooge. May also make a new stab with some diagonals so it'll stay flat. Hooks made of pins to anchor wing and landing gear elastic bands worked OK. More rubber may get me up out of turbulence.

The Gollywocks were catching thermals and going way high.

Fly and learn

Joe
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Old Jul 16, 2012, 02:25 PM
flight999
England
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Not a patch on yours, mine used to be worth about
40 seconds. No funnies, it flew well. Did have a decent
hand carved balsa prop which may have helped..... and,
though I didn't know it then, good T56 rubber motor. Probably
4 strands of 1/4". A lot more than 5gms. and no weight in the
nose. Could be heavy wood wheels instead.
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Old Jul 17, 2012, 04:04 PM
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Rio Rancho NM
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Mini Mojo from plans in the "A few FF plans added" thread blown up to 18". Added a bit of incidence on the wing and tail since there was none on the original plan. Also reduced LE & TE sizes a hair but otherwise stock.

scrubs
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Old Jul 17, 2012, 10:58 PM
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Very sharp, scrubs.
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Old Jul 18, 2012, 04:17 AM
flight999
England
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Bet it would make a nice indoor
flier, particularly with the lighter
wood sizes.
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Old Jul 23, 2012, 03:05 PM
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USA, IL, Wheaton
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Anna Jr. Embryo from kit by BMJR

I built this Anna Jr. Embryo from a kit by BMJR to perhaps beat my venerable Peck Prairie Bird. It turned out a bit heavier than the instructions say at about 25 grams with a 3 gram motor (12.5 inches X 4 strands 3/32 inch wide Tan Sport). With 540 turns on it in a confined field I got about 25 seconds duration. The instructions give an outdoor setup of 14 inches X 4 strands 1/8 wide Tan rubber, which is roughly 5 grams, and say to wind to 875 turns. There is an adjustable rudder trim tab made from windshield acetate, as per instructions.

It is a pretty flyer. They say it can be flown indoors, but looks like the venue had better be fairly big.

Joe
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Last edited by DuPageJoe; Jul 23, 2012 at 03:15 PM. Reason: clarity
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Old Jul 23, 2012, 03:12 PM
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Rio Rancho NM
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Looks good Joe. IIRC it's a Thomas Lee design from the small flying arts site. At less than a 10% motor with the 3/32 I'm sure there's a lot more to come.

scrubs
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Old Jul 23, 2012, 03:20 PM
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Thanks Scrubs

What's the weight on your Mini Mojo? Do you think it could be built to Bostonian rules? the fuselage looks pretty deep. You'd have no trouble getting some "Charisma" points,

Joe
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Old Jul 23, 2012, 05:10 PM
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The Mini Mojo came out at 20 gms less rubber and ballast. But that is making no effort to save weight. I used 3/32 for the fuse and you wouldn't do that on a Bostonian. You'd also cut the LE & TE stock way down. I'd also build a flat stab and add wing incedence.

You'd have to cut the chord down a bit to fit Bostonian rules and add landing gear. My 18" job is a bit under 16" long so you would probably want to lengthen the tail moment as much as possible at Bostonial size.

It would look cool cruising the hall at Racine if you do the Bong indoors.

scrubs
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