Enough power ?

[Vinegar Dave]

thinking of a electric conversion on the WOT trainer  and have one of these and a 70 amp esc. Would this be sufficiant or under powered?

**LINK**

 

 

 

Edited By Vinegar Dave on 10/04/2015 15:18:07

[Masher]

I think this may be a bit too low. The WOT trainer is quite large and flies nicely on a .46IC. With full standard servo compliment and battery etc, I would think it would be nearer 5ibs than 3.

Look up 46 size equivalent electric motor

Eg here

[Stuphedd]

if its any help I fly mine on an Hyperion HP Z4020-16 on a 14x7 prop and an 80 amp esc on both 4 and 6 s .

cheers

[Reno Racer]

I would suggest about 800watts required. Good rule of thumb is times the IC engine by 2 then add a zero digit to get the watts required. I.e 46 x 2 = 92, therefore 920 watts. It's very rough, and a trainer would get away with less. The 4-max site has some good examples of WOT4s converted, which is similar in size,weight to your WOT Trainer.

[andyh]

for a 5lb model, you'd want 80-100W/lb for trainer/general sport performance, so 400-500W total

for that sort of power you'd probably want a 4S pack (14.8V nominal) - maybe somewhere around 4000mAh for reasonable duration

for sensible prop revs something 700-900kv would give 10-13k rpm

500W @ 14.8V gives about 35A - so a 40A ESC would suffice, or maybe something a bit higher rated if you want to prop it up in future, if the motor is rated for the extra current/power

I'd suggest a 3548 of either 790 or 900kv - there are plenty around from various vendors - with a 12x8 or similar

I would have thought 900W might be a bit excessive, unless you want unlimited vertical

[Vinegar Dave]

I would think then that a 8X6 prop with 40 amp and 400w and producing 12,500 rpm on a 11.1 v .

[Masher]

You don't mean 8x6 prop do you????

[Dave Hopkin]

I tI would be looking for something around the 600W mark 600-800kv turning a 13 or 14 inch prop and pulling something like 40Amp for a decent duration

 

Edited By Dave Hopkin on 14/04/2015 10:07:10