Team Telemasters 2008 UAV Outback Challenge

This is our entry into the documentary section of the 2008 UAV Outback Challenge.

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3D Robotics
Comment by Chris Anderson on October 1, 2008 at 9:03pm
Lovely! I especially like the state of the plane before you fixed it up. I've got a few that look like that!
Comment by T-Rex on October 8, 2008 at 6:56pm
Awesome! Thanks for posting your information from the challenge. The high viz color scheme you used is great.

I really like the idea of going all electric even for a duration event like this. I have been considering the Telemaster Electro vs. the Senior Telemaster for my forays into UAVs. What combination of batteries, motor, and prop were you using to carry all that payload and still get 1 hour flight times? I fear the smaller Electro would not be able to carry that much payload without a significant trade-of of one sort or another.

Cheers!
Comment by AD on October 8, 2008 at 8:26pm
Hey Chris.... Thanks! It was an easy restoration considering the plane had sat in my dad's shed for the past 15 years unused. Oh and the plane I'm shown working on is also the same one (orange covering) that I'm sitting next to, aged 18 months, DEC 1978. (Got any children to work on some of your old ones then?)

G'day T-Rex.

The senior Telemaster is a great airframe. As you can see from the video mine are 30 years old and still going strong. (and they aren't like Grandfathers Axe either.... five different handles and four new heads but he's had the same axe for 30 years :)

They can lift a HUGE amount of weight without a great penalty. The Missouri S&T team had their Telemaster (with four stroke motor and two litres of fuel) flying at 22 pounds (10 Kilograms) Ours was more like six - seven kilograms. You need to remember that the horizontal stab is a flying surface too, and a big one at that.

Motor is a Hyperion Z-5025-20 swinging a 17x10 APC-E prop running through a HYPERION TITAN 90A HV HI-PRO BRUSHLESS ESC OPTO. Batteries are 2 x 5s Hyperion HP-LCX5350 5350mAh in series to give 37 volts. Max AMPs with that combo was about 47 and in cruise is 6-8 amps so most flight times have been around the 50 minute mark. If you like thermalling you can extend the flight time too :)
Our plan for the competition was to fly the search section clean (No water bottle, 600grams) and then when we found Outback Joe, return to base and swap batteries and put on the water bottle that needed to be dropped. Fly directly back to that point, drop bottle then return.

Servos are powered from a separate 2cell lipo running through a 6v regulator.
Video transmitter, camera and modem powered by another 3cell lipo.
Safety system another 2 cell lipo.
Autopilot powered by a 4 cell NiMh.
Onscreen display powered by a small 2cell lipo.

So including the flight batteries...... seven batteries on board :)

Any more questions, feel free to ask.

Cheers
Aaron

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