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    10/23 Raptor Video

    Men make mistakes. A smart man learns from his mistakes. A wise man learns from the mistakes of others.
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    Raptor Composite Aircraft

    There will be no intervention. He has already left the building, the only question now is how high the bounce will be off the pavement.
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    Raptor Composite Aircraft

    COZY NEWSLETTER #44 January, 1994 Here is a report of aft cg Cozy MKIV testing with comments on the lower winglets.
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    Raptor Composite Aircraft

    I was walking through a parking lot with a friend who's main job was inspecting compressor blades for USAIR. We were talking and suddenly he stopped and pointed at a car about 8 feet away and said, "Look at that!" We walked over, there was a hairline crack in the aluminum wheel radiating out...
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    Carter Copter

    Heh, is it my imagination or does that look like a BSLD wing.
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    4A-084 teledyne engines for sale

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    Prandtl lift distribution for conventional configurations?

    A Parametric Study of Formation Flight of a Wing Based on Prandtl's Bell-Shaped Lift Distribution Comments?
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    Prandtl lift distribution for conventional configurations?

    So from what I have read most of the efforts have involved the tips going to negative lift to gain longitudinal stability in flying wing configurations. The performance envelope may be wider if the tips go to zero or just slightly positive lift, but I don't think anyone has worked to optimize...
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    For Sale Craigslist

    It is indeed cool looking. I was standing about 5 feet to the left when this picture was taken
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    Interesting Autogyro

    Someone should really start a "Mystery Engineering Theatre 3000" youtube channel.
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    Safety Question - Seats with Headrests

    Ahh, the good old days. I only get to pick one now.
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    .50 Caliber Browning Guns

    If there is a bear.
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    Raptor Composite Aircraft

    IIRC the GU airfoil was too sensitive to builder variation so the Roncz canard was developed to reduce that. Lots of people still fly the GU airfoil.
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    13b rotary engine controllers. What are people using?

    It's almost a given that for this application there is no perfect solution, I am just looking for a good compromise. Ross needs to step up and meet the market of dozens and get ignition into his rotary system. :bow:
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    13b rotary engine controllers. What are people using?

    So which is it? :) I'm a customer, I want options! SDS is dual ECU with mixture control.... just no ignition. :pilot:
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    13b rotary engine controllers. What are people using?

    If hypothetically this can't be fixed and the decision is made to look elsewhere, perhaps the SDS system, is there a standalone ignition that could be used? It's been a while since I researched this.
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    Trace based simplified composite analysis. Opinions?

    Yes, I still have to get the program to try. Keep going!