gpach
Posts: 301
Joined: 10/6/2007 From: Calgary,
AB, CANADA Status: offline
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Side by Side test runs, ee both have eagletree's on. His machine weighs approx the same as mine. He posted an eagltree over at RCG forum. Not sure what run that was but we have both been tweaking for the last few days. In yesterdays runs, me running 550 mm blades against his 520mm. He has the scorpion, me with the Z20 he came out with 290 ma per min. Min was running at 350. Today I ran it with 500mm in and the headspeed back up to 1800 RPM and I got it down to 300 mah per min but the machine has a lot less pop than the 550's. His scorpion with the 520's has about the same power as the 550's and the Z20, it just pulls less current. It makes sense though as the scorpion is about 10% more efficient than the Z20. His motor is not hot when it comes down. He is running the timer to 7 mins and then about 30 seconds to land. Mostly eights, rolls loops etc. Both of us run the 3500 mah batteries Its handy having two machines side by side with only a couple things different. Gives you the chance to get a real life comparison. Especially with the loggers. I think I will go back to the 550's and set the headspeed around 1700 RPM. This gives me a nice solid eight mins of flight with lots of power. What I would realy like to see is back to back runs, same machine, same motor first run with woodies, second with CF. Just to see how much better the CF are.
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