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Doug Riley
Doug Riley
Platinum Member
Last Activity: 10-12-2017, 07:17 AM
Joined: 01-11-2004
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  • Doug Riley
    replied to Tall Tail size choice
    In my experience, a H-stab in the exact centerline of the prop disk does, in fact. lose its effectiveness when the throttle is closed.

    Any H-stab that is energized by the prop blast will lose SOME effectiveness when that prop blast disappears. This problem gets worse, however, if the...
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  • Doug Riley
    replied to New chinese engine
    Waspair: OK, touche regarding the reliability of McCulloch engines and their kin. But, but...

    The departures from quality control in products from Red China feel like malice aforethought. Toxic toothpaste? Really? I generally don't get the same case of the willies about Euro-American-Japanese...
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  • Doug Riley
    replied to G-Force Landin Gear Help
    I fly a friend's G-force equipped Butterfly now and then. I don't care for the particular model of this gear on his machine. It presents the possibility of a forward-then-sideways capsize, as the nosewheel does not have a long-stroke leg as the mains do. I tie the gear off in the retracted position....
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  • Doug Riley
    replied to Las Vegas - mass shooting
    in News
    To my knowledge, the first random mass shooting in this country happened in Texas in 1966. I'm at a loss to understand why we crossed this line then (and have never crossed back). Certainly, there have been angry people, and well-armed people, and mentally-disturbed people long before 1966. Jack...
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  • A close examination of the break in the blade spar can reveal whether an existing crack spread through the spar over time (as might be the case if the blade had been damaged and "repaired") or if the break was sudden (e.g. from an impact). Aluminum alloys do not tolerate being bent and then...
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  • Curtis, I don't have any firsthand experience with RotorHawk blades.

    Here in Vermont, we have the concept of "rock skis." Rock skis are your old beaters that you use when there are rocks poking up through the snow and you're going to gouge up your skis. You don't use your...
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