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Discussion Starter · #1 ·
Hi All,

I recently pulled out my old (mid 90's) Precedent HiBoy Series II RC Trainer. I thought it was about time I actually built this beast. The plane was originally designed to be powered by a .35 - .45cc petrol engine. But with today's electric motors capable with providing the same grunt as their petrol counterparts (at a better price and so much quieter), I want to look at finding the right motor/esc/prop/battery combo to suit.

Here is my list so far. The dry plane weights in at 1350g (with the extra packing still around the main wing).

Precedent HiBoy Series 2 - 1350g
BMS-621DMGplusHS High Speed Digital Servo x 3 - 139.5g
On Board Lipoly Low Voltage Alarm - 7g
Turnigy dlux 70A SBEC Brushless Speed Controller w/Data Logging - 84g
Turnigy nano-tech 2200mah 4S 35~70C Lipo Pack - 253g
Turnigy Aerodrive SK3 - 3542-1185kv Brushless Outrunner Motor (730w) - 141g
Spektrum AR6200 RX - 10g
Total weight in grams - 1984.5g
Total weight in pounds - 4.37lb
Watts per Lb - 130w
Total Watts needed - 568.76w

No prop selected as this stage as I am still trying to figure out which one would be best. I don't want the plane to be underpowered (obviously) but I also don't want to go stupid and have it way overpowered. I don't need it to be super fast but I want to be able to do mild aerobatics.

Ideas people? I am open to suggestions.

Toowoomba, Queensland
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