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Home › ✈️Aircraft › 🚁Helicopter › e-Minicopter › Joker › Joker model for an experimental unmanned platform?
06-21-2009 05:56 PM  11 years ago
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bradpowers

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Needham, MA - United States

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Joker model for an experimental unmanned platform?
Hi everybody! I'm looking into building a helicopter for use as a UAV. I'm hoping for roughly 10 pounds of payload, some room on the chassis for mounting electronics and such, and extended run time. We'll potentially be using a fuel cell in place of, or in addition to a battery. This helicopter needs to be highly reliable. What suggestions do you folks have in terms of chassis, motor, electronics, etc.

Thanks!
Brad Powers
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06-21-2009 06:58 PM  11 years ago
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rroback

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Irvine (UCI), Ca

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I've read of a couple people using the joker as a platform, since it's smooth flying, has good payload, and the lower frame can be fairly easily switched out to anything. Your setup will depend on your electronics, and since you're not even using a battery, I doubt many on here would have advise. I was under the impression that fuel cells weren't capable of delivering enough power, in a reasonably light setup, for decent duration. If you want to know a good setup, look at the joker I'm selling:

http://runryder.com/t521918p1/Rhett..... I can't fly, but the Profi sure can.
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06-21-2009 11:15 PM  11 years ago
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Gerd

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Vellmar/Germany

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United Aircraft (Sikorsky) has done the worldwide first fuel cell powered vertical flight with a model helicopter at october 23th 2008.

And it was a ... Maxi-Joker

Here the link:

Maxi-Joker with fuel-cell

Two minutes only but the start in a (probably) future technology is done.
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06-22-2009 03:44 AM  11 years ago
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bradpowers

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Needham, MA - United States

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Thanks Gerd, Rhett! I hadn't heard of Sikorsky's helicopter, that's awesome. I'm still not set on using fuel cells, I've been talking with some manufacturers on what they can do. Evidently it can be done, which is nice to know. What chassis do you recommend, it appears that even within the Maxi-Joker line there are a fair number of decisions to be made.
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06-22-2009 06:39 AM  11 years ago
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Gerd

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Vellmar/Germany

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The choices on Maxi-Joker are relative small. You can choose the canopy colour and if the tailrotor is belt or torque tube driven. For special use there are bigger lower frames in different heights available. Stock Joker 3 is 55mm, Maxi-Joker is 70 mm like Joker 2, for special batteries we have also 75 mm height (for Kokam 6s/5000s) and 95 mm after special request and order.
And you can choose between flybarless head and MFS head.
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06-22-2009 10:37 PM  11 years ago
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flyboy

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North America

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Ditto that on the Joker/Maxi J2 as a platform. We have several UAVs that are based around the Joker platform and they have all worked flawlessly!
FB
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