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Old May 26, 2015, 06:57 PM
Border Lord is offline
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South London United Kingdom
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Hi mhills

Did consider that, but there is no way it will fit. The Align main is 90mm diameter, where the 3DX one is only 55mm. Won't fit in the frame.

Having said that, I owe you an apology, for dismissing your idea too quickly.
Google search tells me that the Align pinion is Mod .6, which is the same as the E-bay one. Confirms why the E-bay pinion is listed for HC 500 and Trex 500.

So, in theory I should be able to use any Align 500 pinion.

Here's the big question.

I have a couple of 500 5mm pinions in my spares. Rolling them round the main gear the mesh seems to be ok, but is this a good enough check?
I ask because although main gears are still available, they are 36 a pop.

That's more than the model is worth.

Did manage to pick one up for 20, but don't want to risk it.

Anyway, if the mesh is ok, that means I can use one of my favourite 500 motors, the Hobbymate 3650

That, with a 13t pinion gives 2525rpm at 100% thr. Probably a little low, but this is a training heli after all.

So, what do you guys think, should I risk it?


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Old May 26, 2015, 08:06 PM
mhills51 is offline
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Joined Feb 2007
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I would give it a go!
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