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The AutoProp8 has a home almost !

Posted by Earl on June 15, 2009 at 2:30pm
The Parallax Propeller autopilot I have been building is almost ready to test ! Here is a few pictures. Good thing I put 3 electronics bays in this 7 foot monster. There is a LOT.GPS6DOFPressure/Altitude module2 servosMONSTER motorUltrasonic ground sensor900 Mhz cameraOSD on propeller board6 Channel RC RxXBee TransceiverIf anyone here is going to the Parallax Expo West June 26,27 in Rocklin CA ...I will be there hopefully with the B2 monster.Oh...one more thing. I don't know how to fly RC planes so I hope the AP knows it's stuff !

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  • Feri Ametia Pratama June 18, 2009 at 9:11pm
    Nice work Mr. Earl.
    I'm using PropStick as control board for my autopilot project.
    Can you share your spincode here? Maybe i can learn from your code.
    Thanks.
  • Reto June 17, 2009 at 2:50pm
    Any little slope will do for a glide test. Better with some high grass of course. Even on a flat surface, a gentle push straight ahead to a flat trajectory (no climb!) will show if CG is ok or not. For a first glide test, having little altitude means less risk for the airframe. With controls kept neutral and a buddy to do the push, it is quite easy to find out if CG is correct and if the wing is warp free. It's even possible to trim your elevons with glide tests. Good luck.
  • Earl June 17, 2009 at 12:28pm
    I have a 'boom truck' with a bucket that reaches 40 feet. Is there any way to do a glide test from 40 feet on a wing ?
  • Reto June 17, 2009 at 8:23am
    If I'd be you never flying an RC plane, I'd give RC controls to some pilot with flying wing experience for the maiden. As Gary said, CG is very critical on a FW and quite little CG offset can have rather dramatic influence on attitude at take off. It's almost sure you're going to have occasions to build a second, third, etc. airframes in the future, so the question is simply how soon you'd like to start airframe #2 !!! Anyway, good luck for your maiden.
  • Moderator
    Gary Mortimer June 17, 2009 at 1:00am
    I would keep that esc in the breeze to aid cooling.

    Good luck with the flying, CG normally is alot further forward than you think with a flying wing.
  • Earl June 16, 2009 at 8:18pm
    You don't get altitude from the 6DOF. You use the barometer and just before flight you tell the AP what altitude you are at. Then the barometer calk will tell you feet above ground. (sort of)
    I wrote the code in spin.
    Plans for the wing...... plans...we don't do no stinkin plans !!!
  • Mitch June 16, 2009 at 3:24am
    What code are you using to get attitude data from the 6DOF? Did you write your own filter code?
  • kos papagonidis June 15, 2009 at 11:22pm
    Can you post the plans of the rc plane??
  • Earl June 15, 2009 at 5:57pm
    This should answer most questions
    https://www.youtube.com/watch?v=E8UrDZqkTIs
  • Tom in NOVA June 15, 2009 at 5:28pm
    Very nice, full featured. Is that pink foam? :)

    What is your Propeller board?

    How reliable is your ping sensor? What did you use to filter the sonar data returned?
    What did you use for altimeter? How accurate is it and what resolution? Use any filtering?

    Thank you.
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