AMA Chartered Club #563
Projects by Dave Pratt
Click on thumbnails to see larger photo
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p51-dstab
These photos show progress Dave is making on his P51-D
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Above are photos of Dave's Twist 40 ARF. Wing span is 48", weight about 5 lbs. Powered by an OS 45, it is a 3D performer and takes off at half throttle. Dave says it flies very well.
Above are photos of Dave's Chipmunk. It is a Carl Goldberg kit and has a 62" wing span. It is powered by a K&B 61 with the old Perry carb. Weight is about 8 lbs and it has retracts.
Dave says it flies very well at half throttle.
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Telemaster on floats
This is the new Goldberg Ultimate 10-300.
It has a 54" wing span, and uses a .60 2 stroke, or 90 - 120 4 stroke engine. "I'm using an
OS .91" 2 stroke, and should weigh 7.5 / 8.5 lbs.
Below, three of the pictures show how I modified the upper wing, losing that danged
rubber band, and replacing it with a 1/8" wooden dowel. I still use the 1/16" wire to
remove the dowel, and there will be a small blind nut, and bolt behind the dowel to keep it
from falling out. I don't have that in the pictures, but it will be there before the first flight.
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This is the completed Goldberg
Ultimate 10-300. I test flew it
tonight, and all went well.
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Wingspan: 71"
Weight: 12 lb
Engines: Super Tigre 45
Servos: 12, because it has two servos each for throttle, flaps, ailerons, elevator, rudder and
retracts.

It appears to be a very good ARF, I hope it flies as good as it looks.
Dave has been busy this building season
His latest project is this Cessna 421C ARF by Nitro Models
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Another of Dave's projects is this Model Tech Joss Stick
This kit is actually approximately ten years old. I bought it from Tad Manske last fall to replace the old and beaten Big Stik.

Wingspan: 67 1/4"
Weight: 9 1/2 lb
Engines: Saito 125 4 stroke

I used Black Baron low heat covering because the wing has a foam core. I did it out in a "Polish" camo (tounge in cheek)
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Dave's previous project was this Ultimate 120 ARF
Wingspan: 55"
Wing Area: 1023 sq in
Wing Loading: 19.7 oz/sq ft
Fuselage Length: 59.5"
Weight: 8 lb,12 oz
Engine: Saito 125, it will turn a 14-8 prop.
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Another of Dave's previous projects is this 1/5th scale Stinson Reliant SR-9
Wingspan: 100.5"
Wing Area: 1487 sq in
Wing Loading: 24.8-38.7 oz/sq ft
Fuselage Length: 37.8"
Weight: 16-25 lb - I'm hoping to keep the weight down to 19 lbs
Airfoil: High-Wing (Gull Style) - Clark Y at the root, Selig 8036 at the tips
Engine: SuperTigre 2000/25, it will turn an 18-8 prop.
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Here are some pictures of my resurrection of a Dumas Swamp Buggy I built 29 years ago
for my son David.  At the time I had no idea how to fiberglass the hull, so it only lasted 3
years, and the hull started taking on water.  I have since glassed the hull and made some
minor repairs, found a used K&B 61, and here is the result.
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Here are some photos of another of Dave's projects
a Top Flite P-47D Thunderbolt
Wingspan: 85"
Fuselage length: 75 1/2"
Wing area: 1327 sq in
Weight: 24 lbs
Dave made a very
successful first flight of
his P-47D Thunderbolt.

Congratulations Dave!
Specs:
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blue p47-1 p47-2

Dave has rebuilt his Katana fuselage using 1/8 light ply. It
is covered with Coverite and dope. Powered with a Tower
Hobbies .61, it weighs in at 6 lbs (it weighed 5 lbs prior to
rebuilding)
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Dave Pratt submitted photos of his Bellanca Decathlon 1/4 scale. It will be powered by a
SuperTigre 2500 turning a 18x8 prop. Right side door and left side window are functional.
Wingspan is 97". Just need to install the windshield and Dave will begin covering with
Coverite and dope.
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Above are pictures of Dave's completed Decathlon. It weighs 16 lbs, is covered with
Coverite iron-on fabric, and painted with Sig dope. Power is provided by a SuperTigre
2000/25cc glow. Servos are standard 1/4 scale servos with a 1200 mah battery pack.
Photos below are of Dave's twin Comanche.
Dave built it from a kit that has been setting around for twelve years.
Power is provided by two .45 - 2cycle glow engines. It has mechanical retracts.

Thanks Dave
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