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Old Aug 02, 2007, 08:29 PM
No substitute for aspect ratio
SPasierb's Avatar
Norwalk, CT aka the Nutmeg State -- I just can't seem to find any %$#@! nutmeg here?
Joined Nov 2003
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A Hornet that became a Phoenix

More photos than words here. I'm happy to report that my beloved Hornet from www.warbirdkits.com is back among the living. If I had to choose one favorite plane, this would probably be it. It's just spectacular in the air and a joy to fly. Through its many years, the original 3S 2200 Polyquest li-ion (first generation -- red wrap) had been trusty and dependable. On this day it reached its limit. In the back of my mind I knew the battery should be replaced -- too bad I failed to act.

Following a great flight and perfect landing, I noticed some slight whiffs of smoke where the fuse meets the wing. I picked it up and headed to the pits at a fast pace hoping is was a speed-control issue, but fearing it was the battery. Half way there all broke loose with a sound like a bottle rocket taking off -- and -- let's just say I haven't run that fast in years. The battery erupted. We threw caution to the wind, took off the wing and yanked out the burning LiPo pieces with a big hemostat (the wind was blowing quite hard, so nobody took any smoke). Thanks to the crew at New Canaan R/C club for helping -- especially Bob Morrow.

The following photos show the crispy aftermath as well as highlights from the rebuild. I'm happy to report that the Hornet flew again this past Sunday 7/29.

With fresh firmware and refined settings in the CC25 controllers and a brand new Polyquest 2500 20C pack, it came to life like never before. Power is a pair of Mega 5-turn inrunners with 7x5 APC e-props.

This hobby can bring an amazing blend of deep lows and great highs. My beloved Hornet has provided both...
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Old Aug 08, 2007, 03:36 AM
Fly cheap-gliders arr :)
kakao's Avatar
Bratislava - Europe
Joined May 2007
99 Posts
Huh

You are lucky that the batery did not blow in some way - that could make some serious injury's
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Old Aug 08, 2007, 10:16 AM
No substitute for aspect ratio
SPasierb's Avatar
Norwalk, CT aka the Nutmeg State -- I just can't seem to find any %$#@! nutmeg here?
Joined Nov 2003
2,225 Posts
Essentially it did -- the middle cell burst and all of the fan-folded copper plates expanded out. That was the "bottle rocket" sound. Nasty stuff. One experience I don't want to go through again.
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