1999 Debate Area
3/Jan/99 2:59:19 - [ 195.96.10.34 ] from Andi Wimmer ( andiwimmer@netway.at )
I am a helicopterpilot of the Austrian Armed Forces and writing a diploma about differences between attack-helicopters and multirole-helicopters. I am searching for all kinds of advantages and disadvantages of a specialist or just an attack-helicopter. If anyone can support would you please send an E-mail to me Thank you for supporting me. Andi Wimmer 8/Jan/99 7:16:58 - [ 193.131.169.67 ] from Isla Chalmers-Tait ( isla.chlamers-tait@uk.pwcglobal.com )
Hello, Could someone point me in the right direction to find out the following:- What are the market shares of the different helicopter makers (Agusta, Sikorski, Bell, Eurocopter, etc.)? - What is the breakdown by client segment : military, paramilitary (police and firemen) , private client, transportation company? Many many thanks 8/Jan/99 12:53:28 - [ 208.213.208.130 ] from John F. Keaveney ( johnkeaveney@targusinfo.com )
Okay... Why is every ARMY helicopter named after an indian tribe with the exception of the Cobra? 9/Jan/99 18:14:54 - [ 209.86.58.169 ] from David Sumner ( dwsumner@geocities.com )
John, the reason the Cobra isn't named after an Indian tribe is it was named at the factory. That is if memory serves me correct.There was an article in the US Army Aviation Digest once about that. 16/Jan/99 8:48:59 - [ 209.148.140.204 ] from Dénes Bernád ( denesbernad@sprint.ca )
"Apostolescu Universal Helicopter Co. Inc.", New YorkI am posting this on behalf of a friend of mine from Rumania:"A least-known American inventor and helicopter pioneer was Stefan Apostolescu, of Rumanian origin.He has been associated with the rotary-winged industry since early 1940. Several U.S. patents were granted to him, concerning helicopters, convertiplanes and advanced aircraft systems.In 1955-1956, Apostolescu set up his own company, the "Apostolescu Universal Helicopter Co. Inc.", at 55 West 42nd Street, New York, and started the development of a four-to-five passenger amphibious roadable helicopter, with collapsible blades, called a "Helimobile". The company had plant facilities at Hicksville, Long Island.Unfortunately, no further information are presently known about the aforementioned company, or Apostolescu himself."Please send any info to my E-mail address: denesbernad@sprint.ca. Thanks.Dénes Bernád 20/Jan/99 20:17:46 - [ 209.86.175.199 ] from Mac McCarson ( rwmac22@ix.netcom.com )
Anyone know what a Bell-210 was?respond to my email address please!rwmac22@ix.netcom.com 25/Jan/99 14:26:46 - [ 208.16.240.147 ] from Shockwave ( makupari@up.net )
Does anyone have anymore information on the Kamov V-100? Anyway, I'm a student pilot in the US, and I plan on getting my license soon. However, my eyes are 20/200, so as far as the military is concerned, I can't fly fixed wing planes. But I am rapidly becoming a helicopter enthusiast, too...:-) 27/Jan/99 18:7:57 - [ 152.163.207.46 ] from Justin ( Yankss7@aol.com )
Can any one help on the begign of the helicopter for a report. Like the chineses part please email me 1/Feb/99 9:46:37 - [ 163.1.111.43 ] from r.s. johnstone ( rachel.johnstone@mohist.ox.ac.uk )
would anyone care to comment re the use of theSikorsky R-4 in the Air Commando Group in Burma1944/45? or for that matter, the use of any typeof heli in the Southwest/Southeast Pacfic area?am also seeking recommendations for good generalor specific texts on heli history, esp. its impacton supply and evac. many thanks. RSJ 2/Feb/99 22:27:30 - [ 129.106.23.28 ] from PAT ( Pmorlen@hotmail.com )
I am looking into the purchase of a recip. driven helo, like the Bell 47. What is insurance like and where are good places to get coverage? 7/Feb/99 4:26:45 - [ 208.158.224.33 ] from Rob ( na@na.ru )
Was the V-100 abandoned or put on hold like its american variant? It looks like WARSAW is a mile ahead of NATO in helicopter design. 7/Feb/99 16:23:16 - [ 130.83.177.167 ] from Andi ( TheChosen@gmx.net )
Is it possible to make a chopper "quiet"? So you only hear him when he's just right above you.Often seen it in action movies - BUT is it possible? Just mail, if you know the answer... 23/Feb/99 9:26:32 - [ 146.229.5.163 ] from Ramon Smith ( mrmcgu@usa.net )
I am looking for engine information on the engines on the Russian Mi-26 "Halo".Any help would be appreciated. 24/Feb/99 7:38:21 - [ 207.96.47.194 ] from jay mcfall ( jmcfall@cityschools.com )
who was Sikorski and his involvement with helicopters 26/Feb/99 20:46:3 - [ 209.86.59.21 ] from David Sumner ( dwsumner@mail.geocities.com )
Jay, Igor Sikorski is who you are looking for. I would suggest you read here or go to the sikorskiweb site. And here's a little trivia, if you noticethe early American and Russian Helocopters looked alotalike. Because Igor and the Head Russian Designer went to school together. 27/Feb/99 20:5:42 - [ 207.67.62.80 ] from J.J. Goodwin ( supersnipe@itol.com )
I have heard that the German Navy had operational helicopters early in World War II. They were used to spot the fall of shot from naval guns andprovide logictic support. Can anyone confirm thisand provide me with a source for the information?Thanks, J.J. Goodwin 5/Mar/99 22:28:58 - [ 202.165.227.109 ] from Waseem, Anique ( zarrar@isb.apollo.net.pk )
HelloWe are maintaining Uh-1h helicopters for emergencyrelief operations. We need plateform for towing of these helicopters in and out of the hangar but I cantfind any E-mail address for acquiring these plateforms.If you could sened me afew E-mail addresses and fax nos.I will be very gratfull.Thanks.Anique WaseemEmergency Relief CellCabinet DivisionGovt of PakistanIslamabad. 12/Mar/99 9:12:48 - [ 204.146.215.18 ] from Alex ( alexb@rust.net )
I would like to know the specific date Hanna Reitsch flew the FA-61 indoors at the Deutchhalle before WWII and for how long did she fly it? Any details as to who witnessed it or any other interesting facts about this event? Thanks! 14/Mar/99 22:35:34 - [ 12.73.233.2 ] from Jay Hendrickson ( RotaryResearchJBH@att.net )
RE: Hanna Reitsch & the FA-61,One of the members of the audience at the indoor flight, was W. Laurencew LePage, he had been at the practice session, and attended the public display of the FA-61 indoor flight.During the demo, the FA-61 had trouble rising due to the hot air from the crowd, in the hall.LePage told his German hosts that they should throw the doors open and let in the cold air, this let the FA-61 take off and continue the demo.W. Laurence LePage was one of the few non-German people granted close access to the FA-61, he brought over the first film to the USA of the FA-61 in flight. 19/Mar/99 22:35:23 - [ 199.190.93.202 ] from Mike May ( airhawkheli@hotmail.com )
I am looking for blades for a French Airjet helicopter called Aerospatiale Sud-Quest SO 1220 Djinn helicopter. I would appreciate hearing from anyone with any information or other links to try? P.S. Like this page! 21/Mar/99 9:43:36 - [ 205.252.72.121 ] from Ed holmes ( eholmes@exis.net )
I just noticed R.S. Johnstone's request for infoon the Sikorsky R-4 in Burma. I stumbled upon somedata at the Air $ Space Museum in Washington. Thisinfo, from a previously Classified document, isabout the first use of a helo for medevac in a combat zone. It is posted on my web site - http:wwwp.exis.net/~eholmesAfter reaching my site, click on the AeromedicalHistory button. Hope what info I have is helpful to R. S. 22/Mar/99 10:31:12 - [ 153.34.81.212 ] from Helidude ( heli_dude@hotmail.com )
Hi. Perhaps someone can help me with this request. I am looking for historical information on successful around the world helicopter flights, the year, helicopter and pilot(s) who accomplished the task(s). Any and all information will be greatly appreciated. Please respond by email to heli_dude@hotmail.com. Thank you for yout time. 27/Mar/99 11:45:1 - [ 204.154.112.177 ] from Ross Legg ( Ross_Legg@Hotmail.com )
Wanted: personal stories and other revalant information regarding tip-mounted ramjet helo's. Such as the Hiller Hornet (HOE-1 & YH-32),American Helicopter XA-5(Top Sergeant),XA-6(Buck Private),& XA-26 (Jet Jeep);McDonnell XH-20(Little Henry);Gluhareff MEG-1X,MEG-2X,& MEG-3X;NHI (Netherlands) H-3 Kolibrie or others... Please respond to my e-mail address. Ross_Legg@Hotmail.com 29/Mar/99 8:12:42 - [ 196.28.68.7 ] from Rodney Benn ( rodney@uec.co.za )
Hi there,I am doing some market research and a feasibility study on the market acceptance for a rotary wing (chopper) powered by electric motor andbatteries/fuel cells.If there is anybody who could help me with comments or point me in the right direction regarding assessing the market demand and justification for such an aircraft for recreation or air surveillance, please reply to my e-mail quoted here.We are close to the point of constructing a first prototype using a R22 Robertson 2 seater helicopter and replacing the IC engine with a modifiedelectric vehicle power plant. We estimate a flight time of between 1-2 hours.Can I have some feedback from anybody who would like to comment on critical issues to be taken into account, level of acceptance, etc.Thanks for your time !Kind Regards,Rodney BennResearcher- Renaissance Group: Johannesburg: South A 30/Mar/99 15:22:23 - [ 207.4.111.212 ] from Renee Deese ( Tonguepiercing @ Hotmail. com )
Do you agree with the overall belief the Arthur Young invented the 1st helicopter? 3/Abr/99 1:14:24 - [ 151.164.49.137 ] from Al Cavitt ( abcavitt@swbell.net )
Do you know where any plans may be locatedor a web site that gives more info about thePV-2. So far, I've found that only 1 unitwas built. This from the Boeing Time-Linepages. Also off of your web site.The Speed-Vision channel on TV had a greatepisode about Frank Piasecki and his Company.They did not give any further info about thePV-2, other than only one was built, testedfor the military, then the PV-3 was tested asa Twin-Rotor helicopter. I did find on theSmithsonian(sp)web page that the PV-2 isdisplayed at the Aviation and Space Museum.Please advise if you know where any plans maybe located, and if they are for sale, or arethey public domain, where anyone can look at,or duplicate so that a full scale, flyingreplica may be built. This would be agreat homebuilt project.Thanks--Al Cavitt :-) 5/Abr/99 9:18:36 - [ 192.207.87.145 ] from George J Hurst ( ghurst@verilink.com )
I am looking for any information that will help me in restoring a McCulloch powered, twin coaxial rotor,single place helicoptor. I currently have approximately 75% of one. A picture would be great, But origional plans would be wonderful. 6/Abr/99 7:51:8 - [ 205.188.192.171 ] from woody stoddard ( woodystodd@aol.com )
I am interested in references to any variable diameter rotorcraft, flying or designed. I believe there was a Soviet prototype during the 1960's, a tiltrotor variant, but I've been unable to find it anywhere. Any information on the Sikorsky TRAC, Bell and Vertol VDRs, and Kaman SAVER (aircrew escape flyable ejection seat) would be greatly appreciated. 7/Abr/99 17:56:43 - [ 12.4.137.254 ] from Keith Jeffcoat ( jefkei92@pct.edu )
I would like to know if anyone out there can point me in the direction of how the helicopter has effect society over the years, or a place where I could find a more detailed history of how society was effected by the helicopter. Thank you for your interest. 9/Abr/99 7:42:34 - [ 194.201.223.50 ] from Glen Brighton ( glen.brighton@aon.co.uk )
I am trying to find out how many helicopters there are in the world split civil/military. Can anybody help me? 30/Abr/99 8:22:27 - [ 207.172.36.31 ] from Garth Norris ( znorris@erols.com )
Could some one tell me the max lifting capacity helicopteraviable to civilians on the eastern seaboard. I need to move a house 3miles to an island. is it possible? What would the limitations be. Ballpark daily rate? 18/May/99 22:59:38 - [ 131.170.2.141 ] from Kariim Djumaedi ( kariimu@hotmail.com )
could someone give an opinion about how helicopter has change the world..?? 25/May/99 5:55:35 - [ 203.12.97.70 ] from John Robertson ( optimum@zipworld.com.au )
This is a query from Sydney, Australia please. Does anyone out there know about the original design (in the late 40's and early 50's in the USA) of the Brantly helicopter? In particular, why is the rotor set much lower on the body than other small helicopters and why do the rotor blades have a hinge about 1/3 way out on the blade?There have been a couple of Brantly's in Australia for several years now but interest has revived with the resumption of production in the USA.Excellent site, thank you.John Robertson 16/Jun/99 8:24:43 - [ 199.235.2.123 ] from me ( tigger_318@hotmail.com )
how can i buy a helicopter 8/Jul/99 7:32:47 - [ 203.8.222.67 ] from booto ( booto@geocities.com )
This is an urgent debate question:Could anyone plese identify the helicopter present on the cover of the Abba albulm Abba Arrival? The Augusta-Bell ab 47 was suggested but from the cover of the albulm, you can see the back of the heli through the glass dome.For a picture of the albulm (i know its not too good quality): http://www.newbury.com/products/cd/cd-indie/47700.htm 9/Jul/99 9:40:47 - [ 206.114.10.17 ] from Jorge Alvarez J ( jalvarez@politecjic.edu.co )
Hello, my name is jorge alvarez, i am an automatic control engineer.i want to know where i can get books or interet links about how to obtain a mathematical modeling of an helicopter.thanks 22/Jul/99 7:24:1 - [ 194.106.18.15 ] from Jose Felipe Gonzalez ( josef@unitronics.es )
I am interestd since longtime ago in knowing about the vector (torque, momentum, etc) involved in the static equilibrium of a helicopter. For instance, I'd like to know the usefulness of the rear helicopter rotor. How does this rotor avoid the spin of the helicopter due to the main rotor spinning? Is really this rotor responsible for avoiding this spinning or instead it avoids the spin due to pitch?Perhaps many of you could know this easy question.So, please, let me know it. 23/Jul/99 11:6:38 - [ 209.86.59.15 ] from David Sumner ( dwsumner@mindspring.com )
Hope this answers your questions....using the old UH-1 as an example.At 6600RPM there is about 10 million foot pounds of energy at the ends of the mainrotor blades...As for the tail rotor it is used to counteract the tourqe of the main rotorand for directional control. The tail rotor is several inches outside the path of the main rotor. In most cases the tail rotor provides no lift..however the UH-60 Blackhawks tail rotor is set at an angleto provide some lift to the tail. 25/Jul/99 20:2:1 - [ 153.35.208.203 ] from james l. keel ( j.keelsr@gte.net )
bell model 61 asw us navy 50'sanyone seen a model of this helo lately?if so what might the cost be? scale 1/48? 3/Ago/99 14:6:14 - [ 198.232.82.74 ] from Lou Ann Haddock ( lhaddock@greenville.com )
If you have any additional information related to my story about Admiral Richard Byrd and the Kellet autogiro I would appreciate you sharing it with me. Thanks. 7/Ago/99 16:57:37 - [ 209.240.200.82 ] from frank may ( famvburg@webtv.net )
Looking for pics & info on the Havoc X & Hokum X projects (mods to HH-3s & AH-1s) at Ft Rucker a few years ago.Please email direct if you can help.Thanks 15/Ago/99 14:51:47 - [ 209.136.117.188 ] from Jeff ( Jclaybr@Hotmail.com )
Does anyone know where I can find pictures of a Kaman h43b huskie? I am building a model of the chopper, and i need some sources, particularly of the interior, thanks 15/Ago/99 15:51:4 - [ 153.36.120.153 ] from Jim Keel ( j.keelsr@gte.net )
Would better picture and more information on the bell model 61(hsl-1). is there a model of it around? 16/Ago/99 23:18:10 - [ 128.143.111.206 ] from Ed Strazzini ( ems3f@juno.com )
I am a former US Army helicopter pilot (UH1 series; CH54A,B; CH34C; OH58. I now fly EMS helicopters BK117; BH412; BH222/230. I am interested in hearing from anyone who can provide info on Luftwaffe helicopter pilot uniform insignia/badges, ie, did such items exist; what did they look like; where can examples be seen? 19/Ago/99 6:29:28 - [ 152.163.197.196 ] from Matt Carter ( matt938@aol.com )
I am looking for information on any rotor system ever developed with a forward speed to tip speed ratio greater than .5 Any info would be great! 21/Ago/99 20:45:1 - [ 208.254.39.200 ] from Shu Pong ( helisphere@yahoo.com )
The Sikorsky S-69 Advancing Blade Concept demonstrator was tested at advance ratios much higher than 0.5 and some of the compound helicopters, like the lockheed XH-51. 28/Ago/99 11:35:21 - [ 207.99.111.142 ] from Bob ( belldel@spec.net )
Hi I am looking for Helicopter and VTOL desk and display models from the 1940's to the 80's, wood or plastic- any condition , Piasecki,Sikorsky, Bell,
Vertol , Kaman , Hiller etc. I am particulally looking
for the H-21, H-23, H-25, H-43 and HR2S
by Topping models, broken or parts OK.
Any help appreciated Thanks 8/Sep/99 11:52:2 - [ 192.31.86.34 ] from Tim Moore ( tim.moore@lmco.com )
A number of years ago I saw a picture of an ultralight single place helicoper that I would like to find more information. The pilot stood in what looked like a white cylindrical cannister, there were counter rotating blades that ran around the cylinder on what looked like wheel bearings at the pilot's waist level. I beleive the only controls were throttle and the pilot shifting weight. Any pictures, diagrams, descriptions or drawings would be much appreciated. 14/Sep/99 10:45:20 - [ 203.134.2.92 ] from Chris nally ( halohaho@primus.com.au )
To the person wanting imfo on the R-4 in combat , my uncle had something to do with using them for a couple of Medivacs. world first I think, this was in Burma. Will check for you , noted that another fellow has some imfo too .
Chris 21/Sep/99 11:57:10 - [ 205.184.71.106 ] from keala kelly ( n/a )
I don't have an e-mail address- I am using a public library system. If possible, please post answer to this board. I am looking for any information on the most current two-man helicopter used by UK Military for a story I am writing. Any information will be helpful. Thank you.
29/Sep/99 18:36:21 - [ 203.97.238.11 ] from ( )
Help me solve this wee debate at work - can helicopters do a full loop? 2/Oct/99 0:36:29 - [ 139.134.189.207 ] from Brett Jasper ( bcjasper@hotmail.com )
Anyone know what happened to the ducted fan vee-tail version of the SA-330 Puma? Janes All The Worlds Aircraft refers to it in a one liner in the mid sixties, but no further info since then. Any info on the Puma/Super Puma & Cougar welcomed (University studies) replies to bcjasper@hotmail.com thanks 3/Oct/99 23:27:54 - [ 38.27.110.71 ] from bill ( cam97@knightwave.com )
While in boot camp at Parris Island during the summer of 1975 I saw a film about a CH-53 performing a loop. I now have a friend who is a retired Army aviation tech who says this is impossible. I know what I saw so we made a bet. I need to get some info on this in order to prove him wrong and win the bet. Can any one help?
4/Oct/99 14:16:28 - [ 209.178.128.240 ] from keala ( akealakelly@Yahoo.com )
As an adjunct to a message I have already posted here, I now have an e-mail address. AKEALKELLY@YAHOO.COM - and I am still looking for any information on the newest, most advanced two-man military helicopter in the world. If you can help me with this search, please e-mail me. Thank you. 4/Oct/99 19:51:22 - [ 208.255.152.91 ] from Ed Strazzini ( ems3f@virginia.edu )
I posted this once before but gave an incorrect email address so I'll try again. I would like to find a source of info on Luftwaffe helicopter crew badges and other such uniform insignia. Also seeking info/references on Luftwaffe WWII helo ops. 5/Oct/99 7:15:12 - [ 136.205.213.182 ] from SANDRA SWAFFORD ( sandra.swafford@redstone.army.mil )
Can anyone help with estimating cost for helicopters.
Cost Analyst need some historical data for
VTOL, weight, unit cost, drive train, transmission, engine,
airframe, cargo handling. Please reply if you have any info in these areas.
6/Oct/99 8:42:46 - [ 195.84.93.57 ] from Olle Johansson ( turistbyra@vimmerby.se )
I´m interested of the Helicopter Kolibrie H-3 from 1958. Are there still any Kolibries or maybe parts of one. They were made in Holland and there is a museeum in Germany which have some parts of it.Please, give me information! 13/Oct/99 16:35:24 - [ 209.244.88.27 ] from Shu Pong ( helisphere@yahoo.com )
I don't know the exact titles of any videos that show a helicopter looping, but I have seen more than one video with multiple loops and rolls performed by helicopters and autogyros. I don't see why so many people think it is impossible, especially when the first loop in a helicopter was done in 1949! It isn't that big of a deal. If you want to find video of it, I would go to a video store that has a section with documentary and technical type films. Rent everything that has to do with helicopters and I can almost guarantee you'll see some loops and rolls.
15/Oct/99 17:36:49 - [ 209.151.211.107 ] from manuel leon ( manuel@aiinc.com )
I WORK FOR BOEING AND THE NAVY ON THERE SH60F AT NAS FALLON IAM A LEAD. FOR THE PAST YEAR THE NAVY"S H-60 PROGRAME HAS GONE DOWN HILL THERE ENGINES ARE WORN OUT THERE ARE SO MANY DOWN HELO'S IN THE HS&HSL WING'S THERE HAVEING TO RUB ENGINES FROM OTHER WING'S JUST TO STAY FLYING . THIS ALL STARTED WHEN THEY CHANGE THERE WAY OF DOING THERE POWER CHECK'S.THE NAVY BIG BOY'S HAD TO SEE THIS COMEING. AND THEY HAVE NOT DONE ANYTHING ABOUT IT I FEEL FOR THE MEN WHO HAVE TO FLY IN HELO'S KNOWING THERE ENGINES ARE OLD AND NOT GET 100% OUT OF THEM.THIS IS BIG JUST ASK ANY MO OF A WING AND HE WELL TELL YOU THE SAME THING.WE HAVE HAVE FOUR SH60F HERE AND ONLY ONE THAT CAN FLY ..
17/Oct/99 4:4:19 - [ 63.14.93.12 ] from Tom Mitchell ( helotpm@earthlink )
Can anyone advise me on sites for starting my own commercial helo operation. I'm purchasing a 91' Schweizer 300C... Thanks !
21/Oct/99 12:43:57 - [ 205.188.199.59 ] from Judy Suryan ( P55Popcorn@aol.com )
My Comment is actually a question. My daughter would like to make a model based on the drawing by Leonardo da Vinci of his version of the helicopter for a school project. I know that models of this have been made for use in museum exhibits. Is there anywhere I can look to find this kind of blueprint or at lease a better, more detailed picture (and da Vinci's notes translated) of the drawing and a picture of a model. She needs something more than just the one fuzzy picture that shows up everywhere. Thank you for you help.
23/Oct/99 23:39:52 - [ 203.134.1.91 ] from Chris Nally ( halohaho@primus.com.au )
Need help getting /parts. I am Ex SAS Regiment{SF] in Australia and we, in assoc with our affiliate members of the now defunct 9 Sqn RAAF, are trying to rebuild a UH-1B that was used in Vietnam to work with the SAS on Operations, we are desparate for parts, donations if any, for especially cockpit panel and interior items I can provide to the site how she looks now but can anyone help with advice or eqt . We would be able to get it here in Australia via RAAF and USAF via A/C movements. Please Please help.
25/Oct/99 8:11:5 - [ 152.163.201.61 ] from Ken Rowland ( KHRowland@AOL.com )
Anyone know why the COMMAND pilot of a helicopter sits in the RH seat versus the more conventional LH seat for the COMMAND pilot of a fixed wing aircraft?
27/Oct/99 8:11:45 - [ 205.188.199.172 ] from Tom Simko ( tom98vz@aol.com )
I have a mint condition issue of the June 21 1943 Life Magazine. The cover shot shows Igor Sikorsky standing underneath a hovering early fling wing. There is a several page article inside about the future possibilities of helicopters. I collect fixed wing books/magazines, and one of you rotor guys might get a kick out of this. $25.00 plus postage. Tom Simko Inkom Idaho
28/Oct/99 11:14:38 - [ 194.66.40.143 ] from Jim Griffin ( jgriffin@coventry.ac.uk )
Hi there. I am studying at Coventry University in the UK, on a course called Aerospace Systems Engineering. I have a small task to complete which requires information about the evolution of the helicopter main & tail rotor in terms of materials and structures. I have already obtained a reasonable amount of information, however would like more. So if anyone can recommend any literature or internet sites, then I'd be very grateful if you could mail me a reference to them. Many Thanks !
5/Nov/99 22:50:49 - [ 152.163.206.187 ] from Fred Even ( frede53@aol.com )
I am interested in information about tip-jet helicopter propulsion. What is the range, speed, ceiling, load and size limitations of helicopters using this propulsion method?
14/Nov/99 11:24:35 - [ 155.239.72.170 ] from Colin Burgess ( albertrn@global.co.za )
I am looming for information on the following two helo's Vertol 44/H-21 and Sikorsky S-62 Seaguard for future modelling projects. If anyone can help , with interior photos, drawings, etc al will be apreciated.Regards Colin
26/Nov/99 8:19:17 - [ 205.188.199.179 ] from billabramek ( skizik777@aol.com )
to : anyone who can help.... how much horse power is required to lift 2000 lbs. copter...how many rotor blades are needed to be efficient...and what is the best material now being used for rotor blades... is there a blade length ratio that is used when designing a new style craft...I'm attempting to develope a totally new flying machine..best regards for any and all help.. Bill A.
3/Dic/99 9:53:53 - [ 152.163.204.53 ] from Dan Foulds ( Dog57@aol.com )
I seek information related to a UK Chinook helicopter flown during the Malvinas [Falkland] Islands war. I am a retired 160th SOAR pilot working on a history of the Chinook Helicopter, and I understand the Chinook in the Falklands was flown with no available maintenance, the caution panel disconnected (all the lights were distracting - or so the story goes), and door(s) removed. Thanks for tips on sites with info, or your personal recollections. P.S. I was at KKMC during the Gulf War and, and more recently at Cecil Field for a JTFEX with UK 47s.
13/Dic/99 12:44:42 - [ 206.154.1.195 ] from Jonathan Strickland ( wally@charlotte.infi.net )
Looking for a 1/48 UH-34 plastic model kit for Mercury Spacecraft recovery diorama. I think Revell used to make one (or Revell/Germany). Also, is the UH-34 Sea Horse essentially a Westland Wessex? Is/was there a 1/48 scale Wessex kit?
14/Dic/99 21:19:44 - [ 152.163.206.211 ] from michaeldubrovich ( dubrovich@aol.com )
I know nothing about the aerodynamics of helicopters, but have often wondered why the rotor(or rotors) could not be mounted under a craft, similar to a personal watercraft and ridden much like a watercraft. Is this impossible to do?
26/Dic/99 0:39:51 - [ 203.96.111.197 ] from philxxx@xtra.co.nz ( philxxx@xtra.co.nz )
do the helicopters,G.1. E.Z Copter and the Mini 1, has enybody built one;contact me if you have, 28/Dic/99 0:31:43 - [ 63.29.25.223 ] from Ava Chava ( earlsusan@earthlink.net )
To Ken Rowland: The reason the command pilot normally sits on the right in helos is because of the unique nature of the controls. The right hand must never leave the cyclic (unless there is some kind of holding device in straight and level flight, or in advanced helos with some kind of auto pilot) because helicopter are inherently unstable and without constant pilot input would surely crash. On the other hand (literally) the left is used for collective control, which usually stays where you put it. Why is this significant? Because with all the other requirements in the cockpit such as tuning radios, switching lights and other accessories on or off, scratching and so forth, the pilot must use the left hand. I have many times had to reach over and hold the cyclic with my left hand while accomplishing something a normal pilot would more easily with his left (I am an instructor and spend 95% of my time in the left seat). But I am always taking a chance and it wouldn't do for me to try to hover this way! There is another reason that's just a matter of choice in design. Most western helos are built with counter-rotating main rotors. This design requires tail rotor thrust to the right (to turn the nose left, opposite the m/r rotation. Therefore, as someone noted elsewhere in this discussion,the helicopter responds to this tail rotor thrust by tilting slightly to the left. Now, if the single pilot sat on the left, it wouldexagerate this tilt and the result would be a severe limit on the amount of available right cyclic! This might cause loss of control, therefore the pilot weight on the right balances the tilt against the tail rotor thrust-induced tilt. Hope this straightens things up for you... ;-) By the way, I have well over 10,000 hours teaching and I STILL really don't know why they fly! Every day is a miracle.
28/Dic/99 0:55:23 - [ 63.29.25.223 ] from Ava Chava ( earlsusan@earthlink.net )
To michaeldubrovich: Very good question. Actually vehicles have been designed where the rotor IS below the driver. They are called ground effect vehicles, named for the phenomenon of increased performance near the surface. Some years ago, an interesting inventor friend of mine brought a series of plans for just such craft. The smallest used a vertical shaft Briggs and Stratton lawn mower engine for lift. Almost the entire remainder of the thing was homemade from aircraft plywood, including the lifting rotor. With only 3 1/2 horsepower, it was claimed that it would lift 200#. We envisioned building a small fleet to let helicopter pilot's kids get a thrill for a few bucks. Other designs that my friend, Bill said he'd seen in operation included a very high performance model that used an aircooled VW engine to power the twin lifting rotors, and (get this) a 289 cubic inch Ford V-8 engine driving the pusher propeller! Bill showed me pictures of this craft with it's builder and SEVEN WOMEN. Claimed they took it all the way down the Mississippi River to New Orleans for Mardi Gras one year! I think he lived somewhere just up the Missouri R. At Panama City Florida, the Coast Guard/Navy has giant hovercraft that make unbelievable noise and throw salt spray all around. Most impressive to hear and watch. Hover craft are the most efficient form of rotary wing flight. Now tell me, if you put a helicopter rotor under the helicopter, how would you propose jumping out???The hovercraft makes use of a completely ducted rotor, which operates in extremely close proximity to the ground or water. The two facts that there is virtually no recirculation of air, and that the airflow is not vertical but horizontal makes this most efficient. But it isn't designed to lift off more than a few inches. And like I said, the practical considerations of jumping over a turning rotor would make disembarking most hazardous, don't you agree? I would imagine a search for hovercraft might turn up much more information than I can provide here. I've seen some very beautiful models at an independent Mercedes repair shop at Panama City, FL, so I know someone has them in production. Good luck! - Ava Chava
30/Dic/99 18:35:7 - [ 209.40.13.221 ] from Daryl Oster ( et3@fx2.com )
a couple years ago i saw a small tandem rotor homebuilt helocopter in a magazine ad. i have not seen it since. i think it was from canada. is there anyone yho knows how to get info on this?
31/Dic/99 14:9:21 - [ 209.112.146.133 ] from Amanda ( lmcoach@alaska.net )
Was The Chickenhawk the real name of the helicopters used in Vietnam or wasit just a nick name?
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