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T-REX 500 › Another Trex500 Nitro DIY
04-05-2009 07:43 AM  9 years agoPost 1
gogoli

rrNovice

taiwan

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Total design by myself.
Customized carbon main frame,
Customized wider main-shaft bearing block,
Customized thick spacer to fit & mount tail boom case,
Customized H-type mounting tray in the front to carry electronic sets
Customized engine Gear, Clutch/Start Shaft, Clutch Bell, Clutch Engine Fan Set ...

Specifics:
Total fly weight with 300CC fuel: 2300g
Normal 3D: 7 minutes
Heavy 3D: 6 minutes
OS37 egnine + Align RCE-G600 Governor

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04-05-2009 08:47 AM  9 years agoPost 2
BOOGIE

rrElite Veteran

LAFAYETTE LA

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Nice! Will you be selling the conversion kits?

MSH USA / Lynx Heli Innovations

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04-05-2009 09:08 AM  9 years agoPost 3
gogoli

rrNovice

taiwan

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Recently I settle down the final specs and the performance is easy to have Heavy 3D.
Now is estimating cost and planning to manufacture.

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04-05-2009 03:16 PM  9 years agoPost 4
Cul-tech

rrApprentice

Naperville, IL

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Looks like lots of work gone into that.

Nice Job.

Mike

I Enjoy the Challenges of Rotary Flight....

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04-05-2009 06:29 PM  9 years agoPost 5
army67romeo

rrNovice

Phx AZ USA

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I was oing to make my own kit to this is what i was looking to do i like this set better then the other kit

i like you put your weight on the set up the other set up Flyheilrus hant posted a weight

i was looking at try the new OS

28XZ Truggy Engine this is there TQ motor and the high rpms and use a closer to stock pinon
SPECIFICATIONS
Stock Number: OSMG2074
Displacement: 0.284 cu in (4.65 cc)
Bore: 0.728 in (18.5 mm)
Stroke: 0.681 in (17.3 mm)
Practical rpm: 4,000-38,000
Power Output: 3.31 hp @ 32,000 rpm
Weight: 13.1 oz (375 g)

Or the

O.S. 30VG
0.298 cu in (5 cc)
0.728 in (17.5 mm)
0.7165 in (18.2 mm)
4,000-36,000
3.0 hp @ 28,000 rpm
12.7 oz (360 g)

OS 37
SPECIFICATIONS
Stock Number: OSMG1945
Displacement: 0.37 cu in (6.07 cc)
Bore: 0.806 in (20.5 mm)
Stroke: 0.725 in (18.4 mm)
Practical rpm: 2,000-21,000
Output: 1.4 hp @ 18,000 rpm
Weight: 10.3 oz (293 g)
Includes: 20M carburetor, #8 glow plug
Requires: muffler, drive hub

I just wonder is what the difference I TQ

there run higher Rpm so you gear them down and thats make a little more TQ

They make more HP and are smaller but they Weigh the same

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04-05-2009 07:26 PM  9 years agoPost 6
Anthony.L

rrElite Veteran

Seattle, WA

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Any buggy or truck motor will not work. It needs to be a ringed piston motor. The buggy motors are not design to be at or near max RPM for extended periods of time, the heat will build up and the motor will lose power.

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04-06-2009 12:55 AM  9 years agoPost 7
gogoli

rrNovice

taiwan

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At this class, the weight is sensitivity. Nitro version is already heavy 300g then electric version. During the flying, I find the heli-power is higher and higher due to the weight reduced from fuel consuming. So, light engine is better choice.

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