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  • MikeInFrance August 3, 2011 at 8:45am
    Listen to Krzys: he found out the stony way it is far more secure to first strongly test everything out and always have an emergency plan so that all liabilities that can be excluded get excluded! But he learned his lesson fast! Check at all his deeds and comments here: there is very high professionalism in what he does and he is very keen to exclude all risks he can!

    MURPHY is definitively not his invitee!

    By the way, you said this bird has a little brother! Care to give the specs and the purpose?
  • Not Sure August 3, 2011 at 5:28am

    Enjoy the fruits of your labour.  I don't agree with the scarmongers in this thread who want to poopoo your hard work by your choice of AP.  The APM is a fine example of an open source AP, and with a sensible approach, it is really like any other AP in the world (commercial or OS).  It will do exactly what you tell it to do, regardless of which code-monkey sat and contributed to it.  Keen to see how it works out.

  • Dano August 3, 2011 at 5:20am
    Outstanding Diego!
  • T3
    Krzysztof Bosak August 3, 2011 at 4:56am

    BTW the platform has very low pitch damping and long nose will be mostly empty because of weight distribution, compared to other twinboomers I saw. It will require fine tuning and will be sensitive to changing payload.

  • Mike August 3, 2011 at 4:27am

    I agree with Krzys and an accident on the scale that this thing can cause would be catastrophic not only in the damage it might cause but in the effects it would have on the hobby and professional civilian users....

  • Dimitri August 3, 2011 at 4:23am

    Woo, is it wood or glass fiber or carbon fiber ?

  • Developer
    Mark Colwell August 3, 2011 at 4:18am
    Great Airframe, More details and video are required...
    Is 100cc engine installed on vibration isolation mount?
  • shailendra singh August 3, 2011 at 3:11am
    Nice airframe sir.....but its really difficult to carry it.......rest its really awasm
  • T3
    Krzysztof Bosak August 3, 2011 at 1:40am

    "Krzysztof, i don´t understand your point, i believe in APM being as stable as other platforms, please let me know if i am wrong....."

    You are planning to develop a plane whose key security component is developed by anonymous ppl.

    At the same time you are planning to use a platform well above the size and characteristics used by developers and testers (size, layout, propulsion, range). Result: nobody tested the parachute logic. Therefore you will fly with a plane that has no automatic parachute recovery, but is able to fly half a county away if throttle servo control freezes.

    You wil fly a plane that is gas but nobody tested the failsafe conditions of those (gas cutoff is more demanding than ESC cutoff which performs extra 'filtering logic' what few ppl realize). You can count it in dozens.

    Basically your key safety component has no organized feature checking. Therefore I assume to proceed responsively, you should concentrate on verifying the autopilot and not the airframe for all those little things that nobody ever did. For this scenario to be feasible, I assume the platform is well tested, flown in RC several times, has spares and you can fly it daily for a few months - as a pre-requisite.

    Why you want to do it by yourself instead of buyng yourself any commercial autopilot with those features tested - I don't know. IMO the price of operation during tests and mishaps will easily exceed the price, whatever you buy.

  • Developer
    Jani Hirvinen August 2, 2011 at 11:33pm

    John, yeah but anyways airframe is so big that you can easily create robust mounting methods inside that kills all those vibrations. Like spring loaded cage for electronics etc.

     

    On my skywalker i have APM basically in front of electric motor and not having any problems. Even thou it is electric, it still creates vibrations.

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