Nothing special but it is a good flying machine video...

Nice video. Brings back memories.

The reason you don't hear it blow up early in the start sequence in that the Lycoming T53-L13 has auto fuel control that drops the fuel automatically at just the right time. Allisons and Pratts are fine engines as well, but the pilot has to turn the fuel on at 20% N1 and depending on temp, humidity, conditions, etc. it sometimes makes a big boom.

If you get a chance to film one in flight, film from the front to get the classic whamp, whamp whamp whamp of the simi-rigid two blade rotor. Charlie always knew if we were coming directly to him. No worries, it scared the pee out of him.

contactflying wrote:The reason you don't hear it blow up early in the start sequence in that the Lycoming T53-L13 has auto fuel control that drops the fuel automatically at just the right time. Allisons and Pratts are fine engines as well, but the pilot has to turn the fuel on at 20% N1 and depending on temp, humidity, conditions, etc. it sometimes makes a big boom.

I'm familiar. We manually start the OH-58A/C in a similar way. The D models have a FADEC controlled start so no "WHUUUMP!"

Unless you forget to pull the exhaust pillow. Then it'll whump regardless. And shoot a flaming marshmallow. Or so I've heard.

Montana and Washington both have Hueys for wildland fire they got through the federal Government excess property program. Washington bases theirs in Ellensburg. Their maintenance facility is in Olympia. My house is right under their flight path between Ellensburg and Olympia. I can hear their whamp, whamp whamp whamp long before I can see them then the sudden transition to whisper mode as they pass overhead. Every time I hear one I run outside to see which one it is. The all have names...Sweet Caroline, Mustang sally, Patches...
My wife says "what's up?" I say "Chopper", Love it!

The Washington Fleet is retrofitted with Cobra engines.
more at http://www.seattletimes.com/seattle-new ... lus-parts/

D and H Model Hueys had L-13 engines. The AH1-G Cobra was put together in six months using the H Model engine and transmission under the new 540 rotor system.

All models D, H, and AH1-G were limited to 40 lbs torque because the transmission was only rated for 1200 SHP. That is why slick drivers could pull more than 40 lbs, without losing turns, coming out of tight LZs. We gunnys kept torque at 40 lbs, slid off on the PSP, and stayed in low ground effect until speed built up.

tcj wrote:The Washington Fleet is retrofitted with Cobra engines.

This this one of two in Montana and both have the Cobra retrofit...
Living under the flight path of Huey's, that makes me squirm from excitement thinking about it.

contactflying wrote:Nice video. Brings back memories.

Thanks, hopefully good memories.

contactflying wrote:If you get a chance to film one in flight, film from the front to get the classic whamp, whamp whamp whamp of the simi-rigid two blade rotor.

Just for you sir... may want to skip to 2:47 for the whamp-ing.

Experimental Aviator,

Thank you! We only got to do one long line with the IP at Mother Rucker. Enough for me.

Contact

I spent a lot of time in the back (Dustoff crew chief.) My Guard unit got activated for Desert Shield, I can't tell you how many hundreds of hours I racked up under NV goggles in just a few months.

contactflying wrote:D and H Model Hueys had L-13 engines. The AH1-G Cobra was put together in six months using the H Model engine and transmission under the new 540 rotor system.

All models D, H, and AH1-G were limited to 40 lbs torque because the transmission was only rated for 1200 SHP. That is why slick drivers could pull more than 40 lbs, without losing turns, coming out of tight LZs. We gunnys kept torque at 40 lbs, slid off on the PSP, and stayed in low ground effect until speed built up.

Right On!!