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Author Topic: Max. recommended head speed for 690s?  (Read 1737 times)

Offline DAldridge

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Max. recommended head speed for 690s?
« on: October 22, 2011, 08:49:54 PM »
I'm wondering what the maximum recommended head speed is on 690s (Rail blades, of course)?  Can it handle extreme 3D and/or speed runs at 2300 and 15deg. pitch, for example?  (Not that I'm that capable, but I'm wondering what the machine limits are).  Or do I need to keep things at the typical 2150 or below?

Offline steffgiguere

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Re: Max. recommended head speed for 690s?
« Reply #1 on: October 22, 2011, 08:56:49 PM »
Matt already tried his E7 with 710mm blades running at 2500 rpm, therefore this heli will handle 2300 and 15 deg pitch. But flying it at 2100 is great.
« Last Edit: October 23, 2011, 03:36:50 PM by steffgiguere »
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Offline Matt Botos

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Re: Max. recommended head speed for 690s?
« Reply #2 on: October 28, 2011, 02:27:38 AM »
I prefer the 2200-2250 myself.
The tail performs much better at this head speed.
It all depends on how you would like to fly.

Matt