Helicopters
Jun 15, 2018 16:38:25 #
Blaster34 wrote:
Some have 3
Yup ... and some even have 6 ... CH-47, or Sikorsky CH-54. And that is not even counting the tail rotor.
Jun 15, 2018 16:55:14 #
Paladin48 wrote:
Yup ... and some even have 6 ... CH-47, or Sikorsky CH-54. And that is not even counting the tail rotor.
The Chinooks I flew had three in the front and three in the back. I guess the new ones have 4 in the front and 4 in the back. They're a different animal than I flew. Wonderful machine.
Jun 15, 2018 17:11:33 #
Jun 15, 2018 17:42:47 #
Wingpilot wrote:
I can't recall any mirrors except when the crew chief was inspecting the Huey, but I do remember a lot of magic in those old birds.
Jun 15, 2018 18:13:00 #
CGpilot wrote:
The attached is from Harry Reasoner, published in Approach Magazine, circa 1973.
Funny.
Jun 15, 2018 19:30:13 #
starlifter wrote:
Something that's been bugging me is a curious thought. Do helicopters have throttles like airplanes or are they just always full throttle?
When I was in the navy, I was stationed in a helicopter squadron, HS-@ out of Ream Field, San Diego. We were in the ASW game and out "choppers" were the SH-3A by Sikorsky. Our planes were powered by two T-58 Turbo-thrust engines. These engines were controlled by a variable load sensor on the rotors through the main gearbox. When we set the throttles, we placed it at 100% power setting. We could go to 117% power, but for only 5 minutes. The engines were then controlled by load factors as stated before. This is a large bird, but the smaller choppers do have a throttle control on the collective stick. This stick is on the left side of the pilot and it changes the pitch of all rotor bledes. Sensor keep the RPMs up, so the pilot must add fuel to maintain rotor speed. Hope this explains what large helicopters do to regulate fuel. RFB
Jun 15, 2018 20:21:01 #
Jun 15, 2018 20:57:07 #
Railfan_Bill wrote:
When I was in the navy, I was stationed in a helic... (show quote)
Even the smaller turbine powered helicopters maintained rpm via the load sensors on the engine. All the throttle control on the endofthe colledtive did was open the throttle to start position, then flight idle position, then 100%. The load sensors did all the rest. I'm talking about the Hughes OH-6A and the Bell OH-58A. I flew the Bell Jet Ranger 206 also worked that way. Now, the birds I learned on and instructed in, the Hiller 12E/OH-23, Bell OH-13 and Hughes TH-55/Hughes 300 had recip engines and throttle control was managed manually by the pilot manipulating the throttle control on the collective pitch lever. Took awhile to get that down pat. Once we learned that, we wondered why we couldn't do that before. Sort of like learning to drive in a car with a manual shift. Great fun.
Jun 15, 2018 21:04:00 #
Wingpilot:
As a fixed wing pilot, I have great respect for chopper jockeys; I used to sit in amazement of the chopper pilots on "Baywatch" at how stationary they could hover without moving an inch (seemingly). (Oh, that in addition to some of the other attractions there, too).
As a fixed wing pilot, I have great respect for chopper jockeys; I used to sit in amazement of the chopper pilots on "Baywatch" at how stationary they could hover without moving an inch (seemingly). (Oh, that in addition to some of the other attractions there, too).
Jun 15, 2018 21:17:31 #
sjb3 wrote:
A helicopter is by definition a rotary-winged aircraft, but the "wing" sure looks more like a blade to me, too.
I was in THe Corp, 1960-67. For us, it was always referred to as a chopper blade. We had the UH-34D chopper in the early sixties.
Jun 15, 2018 23:02:48 #
snapshot18 wrote:
Wingpilot: br br As a fixed wing pilot, I have... (show quote)
Perhaps those other "attractions" is why they could hover so steadily.
Jun 16, 2018 00:51:21 #
Wingpilot :
You think? You mean they were concentrating on something other than their flying?
You think? You mean they were concentrating on something other than their flying?
Jun 16, 2018 00:53:37 #
snapshot18 wrote:
Wingpilot :
You think? You mean they were concentrating on something other than their flying?
You think? You mean they were concentrating on something other than their flying?
Some things help you concentrate. Tracers in an LZ are one. Bay Watch "attractions" are another.
Jun 16, 2018 00:55:09 #
Jun 16, 2018 01:02:42 #
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