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Old Jan 21, 2004, 12:40 PM
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Endor's Avatar
La Mirada, CA
Joined Dec 2003
228 Posts
Formosa motor mounting - 300 vs 400

Hi folks,

I have a Himax 2025-5300 coming for my Formosa. I bought a combo unit from e-Flightline since it seems like such a good deal... basically the motor, GWS-400 gearbox, their hardened Cobri shaft, prop adapater, CC Phoenix 25, and all the necessary connectors.

I currently have the stock 350c (and hence a 300-series gearbox). I have the wood mounting stick in the top fuselage mounting hole, so the motor "hangs" off the stick.

The manual says to put the stick in the bottom hole if running the EPS-400, which means the motor "sits" on the stick.

I assume that this is to properly line up the prop shaft with the cowling, but having not seen a 400 gearbox close-up I'm just guessing.

Could anybody who has a similar setup comment on how they have their 400 gearbox mounting in their Formosa? I really hope I don't have to move that stick, 'cuz I had to epoxy it like crazy to fix the mount after a "mishap" dislodged it. Thanks!
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Old Jan 21, 2004, 08:21 PM
Motors beat engines!
Milwaukee Wisconsin, United States
Joined Feb 2001
4,564 Posts
My eps 400 slid right on in place of the 350. Everything lined right up, no problem.

The biggest problem with the swap was compensating for the extra nose weight. I had to slide my 8 cell 950 kan pack WAY back.

Dean in Milwaukee
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Old Jan 21, 2004, 09:56 PM
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La Mirada, CA
Joined Dec 2003
228 Posts
Thanks for the reply Dean, that's what I was hoping to hear!
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Old Jan 22, 2004, 03:03 PM
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Darwin Australia
Joined May 2002
6,960 Posts
The are are two types of GWS Speed 400 motors. The EPS-400 Motor/Gearbox and the EDP-400 Direct Drive Motor.

The EPS motor/gearbox goes on the top position and the EDP direct drive goes on the battom position.

Ken
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Old Jan 22, 2004, 05:13 PM
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La Mirada, CA
Joined Dec 2003
228 Posts
Aha!

I must have misread the acronym... that makes sense, thanks for clearing that up for me guys!
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