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Old 11-11-2009, 12:50 AM   #146
Captain Carlton
Gettin' Lower!
 
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Join Date: Jun 2007
Location: Fairfield, CA, USA
Posts: 72
Default Re: 88" Extreme-Flight Yak Electrified Build

Mark,

The ESC was running over 200 degrees, and cutting off. We plugged in the Spin box device...and it gave us this info. The Batteries are TP 6S-5000s..Pro Power 30s. The ESC were mounted on the side of the motor box...as shown in this thread...and there wasn't a lot of flow. Ambient temperatures at the time was 75 degrees to 105 degrees.

There must be some variations in MFG of this ESC for there to be this big of a different in performance.

We are using 6S-5000 in series for 12S-5000 for freestyle...and 12S-8700 (four TP 6S-4300 Prolite V2) for IMAC. 12S-5000 just won't be long enough for two sequences....unless you fly a really compressed box. Earlier this year... we ended up dead sticking down to the runway after we flew out of the box on the 2nd sequence. Very demoralizing for my son Alex.

In terms of overall power, if we're at 70% power for a hover (no joke) ...its not much of an energy reserve...if you get in trouble...you can kiss your butt good bye. I have talked to Andrew and Ben Fisher at length. Ben prefers the Plettenburg setup by far. I assume that Andrew uses the AJ Slicks for fun and entertainment. He didn't fly his own design (Gas or electric at TAS)...so make what you will of that.

Andrew is a great guy ... but I have a personal rule about people eating their own dog food.

I have two of the AJ Slick 89's...and for me...they came out a bit heavier than the 88 Yak. My 88 Yak with 12S-5000 was 18.0 lbs with no wheel pants, and CF LG. The Slick with the same config came out at 19 lbs.

All I can say for sure is that we have two groups of people with very different experience with the Hacker gear. I would have greatly preferred to have had your experience...but it didn't turn out that way.

- RC
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