29/Ene/2006 13:10:47 - [ 203.177.121.248 ] from rjo
Can a helicopter generate wing tip vortices?
15/Feb/2006 15:14:19 - [ 216.59.230.113 ] from Lee Anderson
What sort of enviromental hazards have helicopters caused?
20/Feb/2006 12:36:30 - [ 83.206.3.191 ] from jacky
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
14/Mar/2006 4:55:9 - [ 82.110.109.212 ] from E.J.Griffiths
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.
22/Mar/2006 19:13:5 - [ 207.200.116.135 ] from Ryan
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
10/Abr/2006 5:30:55 - [ 58.105.141.58 ] from Scott Lanham
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.
22/Abr/2006 7:59:18 - [ 201.243.170.35 ] from John Ridings
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
12/May/2006 1:43:2 - [ 130.206.92.100 ] from Maria
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.
25/May/2006 6:50:37 - [ 72.241.33.149 ] from Don Reed
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
9/Jun/2006 14:19:44 - [ 66.173.204.178 ] from Alison Ross
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
18/Jun/2006 20:18:27 - [ 209.26.39.246 ] from Robert G. Harris
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
17/Aug/2006 06:12:06 - [ 202.131.137.85 ] from robin jome
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
7/Sep/2006 3:33:56 - [ 193.61.220.3 ] from Haydn Foulkes
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?
12/Dic/2006 22:58:54 - [ 203.94.140.5 ] from Steven
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
11/May/2007 21:36:44 - [ 71.105.50.225 ] from Davis Newman
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.
24/Jul/2007 7:11:25 - [ 121.246.25.226 ] from Vincent
S.Ryan
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
26/Ene/2008 5:40:31 - [ 81.109.240.225 ] from Mark
Steve the "autocopter" in the 1982 movie Annie was a modified Bell
47G - as you say similiar to the MASH ones.
