Author Topic: Turbine Tri-Gear Helio  (Read 3001 times)

gearedone

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Turbine Tri-Gear Helio
« on: February 23, 2012, 09:59:14 AM »
As we all know, Pima County Sheriff's fly the only two modified HT-295 and H-800 Helio's. These are quite efficient and performance is outstanding. I remember when Helio was flying a prototype H250 in 1969-1971 with the original Allison 250 (317 SHP) primarily used in Helicopters, Jet Ranger, Hughes 500, and Fairchild-Hiller FH-1100..Early versions were disadvantaged with small compressors and poor high altitude performance. But it was a novel idea. Now we have a new Allison Rolls Royce RR-300 among us installed in the Robinson R66, based upon the more efficient 250 series with lighter weight and better operating economics. The RR-300 produces 300 HP at take-off but uses less at cruise about 240 SHP..These may work well with rotor types, but in GA, I'm not so sure..I'm sticking with the 250 series for any future application to the Helio..

http://www.youtube.com/watch?feature=endscreen&NR=1&v=Qr5pLgJ1bFE

Jason Stephens

Re: Turbine Tri-Gear Helio
« Reply #1 on: May 11, 2012, 01:21:34 PM »
Do you know which airport they are at?  Tucson Intl?

gearedone

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Re: Turbine Tri-Gear Helio
« Reply #2 on: July 16, 2012, 08:10:51 AM »
Both are based at Tucson, N400HE and N613SD