"Hi Robert, sorry about the loss of the plane, I also had a fatal crash a few weeks back although my problem was Rx based as I wasn't using the Ardu at the time.
I have had problems too in the past with altitude hold even with the electric…"
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Robert Dielenberg
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Robert Dielenberg left a comment for Graham Dyer"Hi Graham,
we're developing a UAV here in Newcastle, Australia. We've been experimenting with the ardupilot 2_7_1 for a few months. Having huge problems with altitude hold and throttle. We're using a petrol engine. We realize the…"
Robert Dielenberg commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"I'm not sure of the work you do in UAVs but one problem a small company faces is how to get the biggest bang for buck. Scaneagle is beyond our financial means. Pneumatic launch system for example. Also Scaneagle doesn't do high resolution…"
MarcS commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"Just as a link, some time ago, but still interesting esp. regarding engine mount: http://diydrones.com/profiles/blogs/scaneagle-video
And the scaneagle carrys cameras, as do other gas powered UAV´s.
Don´t get me wrong, I like the…"
Robert Dielenberg commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"Paul Mather got it right. The key reason for stopping the engine is to get clear photos. We've been trying every which way, and it's the only viable solution in a small UAV which needs to cover long distances (hence electric is out). All…"
MarcS commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"Alex,
the motor system Maynard Hill developed was increadible. It was the key to the atlantic crossing. Everything else would be obtainable today for a few 100$... There is many interesting reading about TAM and his previous projects on the net! He…"
Alex Lee commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"here's the detail. Not sure if you want to tackle all of his methods, but some do look promising.. Like generator instead of battery..
http://www.progressiveengineer.com/profiles/maynardHill.htm"
ModeratorPaul Mather commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor
"Alex, I think the reason for stopping and starting is to get good IMU data and clear photos...not to extend distance or flight time in this application."
Alex Lee commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"Here's the article Link"
Alex Lee commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"Didn't the fella who passed away a few weeks back use a super tuned carb in his plane that flew across the Atlantic? I'm sure he didn't stop and start the engine, he just used a better engine and carb. His plane wasn't that …"
ModeratorPaul Mather commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor
"Cool, what about telemetry data? :)
I'd be happy to add support to my GCS: http://code.google.com/p/happykillmore-gcs/"
Robert Dielenberg commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"That's true. What we do is recalibrate the gyro using accelerometers. It's tricky, but we got reasonable results. To this you add GPS data and horizon data from the infrared horizon detector. So it's all about data fusion."
ModeratorPaul Mather commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor
"I'm certainly no expert on electronic hardware...software is more my thing. But a gyro is a dead-reckoning system. So wouldn't 5 minutes of hellish shaking throw the dead reckoning off whack....and then when the motor's off everything…"
Robert Dielenberg commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor"Don't forget you have to couple the engine off scenario with good image taking. We've also had a lot of experience with gyros and vibration. Not good. But when the engine is off you get good gyro readings. Has anyone else flown an MVVS?…"
ModeratorPaul Mather commented on Robert Dielenberg's blog post MVVS 26cc in-flight starter motor
"I think their remote start system is really slick. There's clearly a market for that in the R/C world...AP R/C doesn't seem like the right place for it but what do I know?"
Profile Information
- About Me:
- Neuroscientist turned UAV developer
- Tell us a bit about your UAV interest
- www.motmen.com
- Hometown:
- Cooks Hill, Newcastle, Australia
Robert Dielenberg's Photos
Robert Dielenberg's Videos
Comment Wall (1 comment)
- At 1:37pm on November 7, 2011,
ModeratorGraham Dyer said… - Hi Robert, sorry about the loss of the plane, I also had a fatal crash a few weeks back although my problem was Rx based as I wasn't using the Ardu at the time.
I have had problems too in the past with altitude hold even with the electric stuff as it seems altitude is controlled exclusively by throttle and no elevator trim. Their plane they developed on worked fine like that but many others don't.
Looking forward to your progress on the rewrite, it needs it badly.
regards
Graham
Robert Dielenberg's Blog
MVVS 26cc in-flight starter motor
Posted on July 10, 2011 at 6:30pm 26 Comments 7 Likes
Check out our unique in-flight starter motor for the MVVS 26cc on a custom built Senior Telemaster.
The system is lightweight and robust. Works from a cold start. Works again and again... it is great for extreme long duration flights and vibration free (i.e., no image blur) video or stills while the engine is off. Also, for all those people struggling with gyro drift, you can get a good gyro fix when the engine is off as well.
Cheers from the…
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Season Two of the Trust Time Trial (T3) Contest has now begun. The third round was a reliablilty/aerial photography round for both planes and copters, which is now closed. Stay tuned for the next round, beginning soon.A list of all T3 contests is here.
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