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HI any cane explain me the concept of the TIP-JETS in the main rotor. why we nee tail boom?what is advantage an disvantage of the tail boom? Regards Vicent S.Ryam
24/Jul/2007 7:11 - 121.246.25.226 from Vincent S.Ryan

There was a helicopter used in the 1982 film, Annie. It was an orange convertible craft with flat "wings" on the side. I cant find any information around anywhere. Do you have any idea what it was? thanks, steve
12/Dic/2006 22:58 - 203.94.140.5 from Steven

Steve the "autocopter" in the 1982 movie Annie was a modified Bell 47G - as you say similiar to the MASH ones.
26/Ene/2008 5:40:31 - 81.109.240.225from Mark

I have been searching through the web and in books for illustrations and diagrams showing how a co-axial rotor system is made up and how it works, such as in the Kamov type of helicopters, but have not found any so far. Similarly I would like to see something on the Huskie H-43's intermeshing rotors. Reference work don't have to be too technical for my purposes as I want to know this towards research I'm carrying out into building a model helicopter of a co-axial type, I'm not a professional in the field of helicopters. I wonder can anybody point me towards suitable reference material please?
7/Sep/2006 3:33 - 193.61.220.3 from Haydn Foulkes

Hello, i am an Computer Engineering student and want to Make a mini RC helicopter with camera as my final year project. But i did't get any useful details about the design and other things about it. So can you please provide me any sort of help in this matter. If you have softcopies about this topic or if you know some uselful weblinks please send them to my e-mail
17/Aug/2006 06:12 - 202.131.137.85 from robin jome

I am retired, educated have a completely equipped shop and lots of room... Why should a man with all that NOT want to build his own UL helicopter? Any resources and sources that anyone can share on, with, for or about design & building Ultralite roto-wings I would surely appreciate. Thanks in advance, R.G. 'Gerry' Harris
18/Jun/2006 20:18 - 209.26.39.246 from Robert G. Harris

I am a historian who is looking for information on chinook helicoptors being maintained at the general depot in new cumberland, pa for the first and second army and military district in washington d.c. i am doing research of that installation and read that chinooks were maintained there. why was new cumberland chosen, how long did they do that there, what buildings were used? thank you so much for any information you can give. Sincerely, Alison Ross
9/Jun/2006 14:19 - 66.173.204.178 from Alison Ross

I am researching a helicopter UH1 66-00632 which is on display at our Memorial Park in Monroe Mi. I know the ship was manufactured by Bell in 66. It served in Vietnam with the 134th AHC and was returned to Bell for refurb in early 70. She then went back to VN in 70 and served with 57th AHC and 129th AHC until 71 when it again returned to Bell for repairs. I would like to get any info on service with these units and manufacture and refurb to include in a book about this aircraft. Any help will be appreciated Thanks, Don Reed 11 ACR 68-69
25/May/2006 6:50 - 72.241.33.149 from Don Reed

I m doing a research project and I d like to know something more about COAXIAL HELICOPTER ROTORS. About upper and lower rotor pitch angles, induced velocities in the blade and thinks like that. Thanks.
12/May/2006 1:43 - 130.206.92.100 from Maria

Would anyone like the opportunity of restoring a Djinn Aerospatiale Helicopter. First jet engine produced helicopter in the world. This is for sale on the Gold Coast (Australia) $50,000 us.. let us know if you are interested.
10/Abr/2006 5:30 - 58.105.141.58 from Scott Lanham

hey everyone, I'm looking forsome information of the best flight schools. The locations doesnt matter to me I am willing to move in order to receive the very best training. I have taken a few intro flights and cant wait to start logging hours. thanks in advance for you time. Ryan
22/Mar/2006 19:13 - 207.200.116.135 from Ryan

I am after any information on the early history of Helicopter In Flight Refuelling (HIFR). Am doing a discussion paper on the subject and am woefully short of early history. Anyone help ?? Am in UK and have tried the FAA & Helo Museum in WSM.
14/Mar/2006 4:55 - 82.110.109.212 from E.J.Griffiths

Regarding the question, 'why do helicopter pilots sit in the right-hand seat, while airplanes pilots sit in the left seat?' - a very simple and logical answer: in earlier helicopter models, and in most of today's smaller models, having the collective stick on the left side made it awkward for the pilot to enter and exit his seat, having to step over the collective control stick either way. Thus entering and exiting from the right side made more sense. Plus, it simplified the collective control linkage system.
6/Mar/2005 4:12 - [ 64.12.117.9 ] from Hollis Kimball

In 2000 , i gave my advice about the seat position of some helicopters. I said at this time that there is not a 'by law' dedicated place for the pilot , but this position is determined by many factors. A - ROBINSON R22 On a R22, the pilot is on the right seat, and it's write in the cabin 'solo from right seat ONLY'. Why right seat in R22 ? 1 - tank is on the left side. So Pilot equilibrates this mass. 2 - blades are turnig from right to left, so in translation, R22 has it right (passing rigt) blade speed faster that the left one. helicopter would bend on left side. So Pilot on right side equilibrates this mass. One time, leaving one of my student on ground, i stay at left position, i can affirm, never i'll do this experience.
B - Schweizer or H300C in this machine, Pilot is on left seat, because blasdes are turning opposite the R22. Contrary cause ...contrary effects.
C - EXEC - RotorWay Pilot on left seat, because rotor turning direction.
If as one said , Pilot was on right seat in a H300C, the third seat couldnt be used. Imagine collective seat under ..Humm !! So, i conclude , that's my avice and i share it ..!! Pilot seat is not disposed by a mandatory postion, but is due too many factors depending of it construction ..etc...etc.. Have All a great 2006. That's all folks ! Jacky
20/Feb/2006 12:36 - 83.206.3.191 from jacky

Ref comment from Jacky about seating positions. He is wrong about H300 rotor disc direction - it is counterclockwise viewed from above - same as the Robinson R22. Pilot sits on the left in a H300 1. for lateral Centre of Gravity reasons 2. So that the three seats side by side, can be used. In the R22, pilot sits on the right, again for lateral CG reason. Generally, the earlier US helicopters, Bell47, H300, H500, Enstrom, Brantly, the pilot sits on the left, and it is noticeable how the aircraft hangs left skid low in the hover. This is compensated for by offset rigging of the cyclic contol, so the the cyclic stick is more or less central in the hover. Also, I feel that the collective lever, in the left hand, is in a safer place in this configuration - cannot be disturbed by nervous passengers !!! The oddball is the Hiller 360 series, where the pilot sits in the middle. Different strokes !!!! PS I have over 10.000 hours in many types, and could maybe answer other questions
22/Abr/2006 7:59 - 201.243.170.35 from John Ridings

As to where you may sit when flying a helicopter single pilot, Normally it will be stated in the Aircraft Flight Manual. It should be in the Limitations Section. The minimum crew will be stated in Aircraft Flight Manual along with where he/she must sit. Just because there are dual controls installed does not mean you may sit where you want. Most A/C can be setup either by manufacturer's design or by STC to be flown from either seat. It has to do with where certain controls and switches are located and the pilots ability to reach them, especially in an emergency. It is common for dedicated external load A/C to be setup for flight from the left seat as it is easier to lean out over the collective to see the load.
11/May/2007 21:36 - 71.105.50.225 from Davis Newman

What sort of enviromental hazards have helicopters caused?
15/Feb/2006 15:14 - 216.59.230.113 from Lee Anderson

Can a helicopter generate wing tip vortices?
29/Ene/2006 13:10 - 203.177.121.248 from rjo