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Mini 500 Turbine Conversion A BIG SUCCESS.
On Thursday, June 19, 2003 11:56:09 PM UTC-4, Dennis Chitwood wrote:
Today was a very good day
We have solved the solution to making the T62-2A1, which is a
constant speed turbine, able to have pilot controlable rpm. This
allows us to start the turbine at 66% rpm, then engage the clutch
(which works flawlessly), and then drive the rpm up to 100%. It
works perfectly. We have no egt's over 850. There will be a movie
of today's startup on www.stittind.com . You will see some shaking
after rotor engagement, but that is due to the fact that the craft is
brand new and has never had the blades balanced. The shaking almost
dissapears at 100% rpm, and you will see Rick Stitt come under my
rotor disk to mark the blades for alignment. The helicopter is well
secured to the tarmack by two straps from the belly tiedowns to an
aircraft tiedown. If you look close you will see that I lifted the
skids off about 1/2 inch to cone the blades up for proper marking.
Pretty cool, huh?
Serial # 5230T
I'm using a T62-2A1 in a Turboprop BD5. I'm interested in knowing how to reduce the engine RPM for fuel savings while taxiing. I'm interested to know how you were able to accomplish this. Right now the acceleration schedule speed control has been modified to be able to manipulate the RPM from 80% to 100% but obviously I'd like to get it as low as possible. Any input would be greatly appreciated.
Fort Lauderdale, FL
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