hi gunship,thanks a lot for your information..i have got problems with drawings of the swashplate and rotor blades construction...and a minor problem..the tail rotor pitch control axle which runs through the shaft seems to be connected with the control rods in a way i dont understand.. plz help me with these problems..and to be frank i also got the plan for my choppy from the site you have mentioned in your post much earlier..but i had doubts if the plan was complete...and you are telling that the plan is complete,rite?..
-- Edited by tsheten8 on Tuesday 12th of July 2011 12:30:47 PM
Looks like the full product from here.
I'm no expert on the rotary market itself, but I think you're supposed to buy the swashplate already built by the manufacturer. Blades I know you can buy, and there are plenty of leading brands, but you can make your own, which is a critical and rather difficult task.
Will try and answer the rest as I read further into the plans.
Interesting choice of rotorwing for a build. Can't wait to see it!
hi allan,thanks for your info..and you are telling that i should buy the swashplate which i believe is pretty expensive,rite?..cant i build my own or modify the one existing in the plan?..
hi airfoil,so you read my topic!..ya?..currently,i am still with the plans and as such i havent started the build yet..this august,i am joining a technical institute here in bhutan,most probably i will start the build then..will keep you and every body updated on my project..
tsheten8 wrote:hi allan,thanks for your info..and you are telling that i should buy the swashplate which i believe is pretty expensive,rite?..cant i build my own or modify the one existing in the plan?..
I'll let Alan take that last part.
In the link you'll find a swash plate for a 1½" rotor shaft, minus hub and pitch linkage, for $1,995.00 (+ $40 shipping U.S.).
Way out of my price range.
thanks for that info airfoil..the price of that swashplate is too much for me too...but i have designed my own swashplate...i have attached its drawing in my post..do you think its worthy enough to serve the purpose?some of the details are not included in the diagram such as the anti rotation links for both upper and lower swash plates...moreover,there should be some clearance between the spherical bearing,rings and lower swashplate..
About your PM to me, don't worry yourself. The plan I'm reading from is the full 39 page PDF document as well.
I think your concept for the swashplate assembly is nicely done. Just remember to test it before adding the blades. There is a whole other matter about the blades I feel is important for me to comment about, but we'll cross that bridge when we come to it.
hi gunship,thanks for your comment on my swash plate design..and i surely will test it before installing the blades..regarding the blade construction i am still doing research on the net for wooden rotor bladesi found a few of them but they were mainly built for gyros..and it's a relief on my part that my plan is the same as yours
Allan,just yesterday i was going through my plan and i could understand some of the drawings which i had problems earlier with..i understood how the tail rotor pitch control axle is supposed to be connected with part no. 268A..
regarding the build,as such,i haven't begun it yet..but i am currently on the hunt for the materials i'll require..i have so far collected some uniballs,bearings and bolts..
-- Edited by tsheten8 on Monday 18th of July 2011 01:17:49 PM
-- Edited by tsheten8 on Monday 18th of July 2011 01:23:18 PM
hi every body,i have posted some images of a pre-built aw choppy and some materials i have collected so far for my choppy...regarding the engine,i am still searching for a good one..and allan,that bmw engine i am not going to buy..one of friends is givingme an offer..he has a maruti omni e engine..a bit spoilt..the coolant sort of leaks and puts off the engine..needs some repair..he wants to sell it to me for nu.1000(btn)..do you think the engine is okay for my project?..i know that the usage of car engines is not recommended in the plans..but i am sure that itproduces 30+ hp..
That is a beautiful machine! Thanks for the photos. The parts look good, and I'm wishing you the best of luck on obtaining a good engine.
hello stingray,that certainly is a beautiful machine!And thanks for your wish..i am still on the search for the materials...and very soon, i am gonna get my engine...i will post its photo..till then bye..
The "through the output shaft" tail rotor pitch control linkage was a Charles Seibel design. It's still used in Bell helos as well Sikrsky and a few others. Make sure the fulcrum has a pivot axises to prevent binding. See picture.
Από κάθε γενιά μεταξύ κάθε έθνος ανθρώπων, να θυμάστε νεκρών στρατιωτών μας.”
also be careful about vortech blades....the aluminum blade I believe is made for the gyrocopter. They say both helo and gyo, but there have been failures. Dragon wings are good blades, I've heard. There's another one but I cannot remember.Dave
Dragon Wings are impressive blades. However, those too are made for gyrocopters. Also regarding Vortech, they are developing a new kind of composite blade with super strong carbon fiber outer skin, specially built for both kinds of rotorcraft in mind.
hello davh12,thanks for your help..but the schematic you have provided me is quite a complex one..the one i have got in my plans is much simpler..anyway,i'll try to adapt some of the ideas from the schematic...
moreover,you are talking about those factory made blades which i cant afford..i am only a high school graduate and don't have a good job..so i am looking forward for building my own blades..
hi crystalblue,thanks to you too for kindly responding to my topic..but i am not interested in those factory made blades coz i can't afford them..but i am planning to make them out of wood..do you have schematics for wooden blades?..or do you know anybody affiliated with wooden blades drawings or building experience?
tsheton,sign up for the Rotary Wing Forum, not alot of feed back for independent thinkers/inventors, but there are some good posts there. Here's one on wooden rotor blade construction.http://www.rotaryforum.com/forum/showthread.php?t=23901Dave
It would be nice if we can get more members like the ones at the Rotary Wing Forum... The second reason I created this site was to bring rotorcraft hobbyists and pilots here to exchange helpful feedback that's common to the other forum, not just on the history/development subject.
You can help me achieve this goal by spreading the word about my forum. Maybe then we'll get more members who have helpful feedback on this kind of subject.
davh12 wrote: Usually I "troll" through to see what people are talking about, update my thread and email my buddy Joe who is working a small scale tandem gyro project.
Usually I "troll" through to see what people are talking about, update my thread and email my buddy Joe who is working a small scale tandem gyro project.
You mean like "stroll"? 'cause to "troll" means randomly flaming others just to start a pointless argument with them. XD
Leela,Sorry............I'm originally from the south and fishermen with boats have "troller" motors that are electric and they pull the boat quietly and slowly through the water while they fish.....hence "troll".Dave
Oh I didn't know that. I'm a brit so well. XD Or is it something everone knew but me?
Well, I'm from California and I've known it since I've been on a few fishing trips myself, but to be fair I always thought it was spelt different... "Trawler" instead of "Troller". This detail is new to me.
davh12 wrote:Hey Travis, you thought about a pic for the my next web site yet?? All of it will be under a "Links" tab; as well Leela if you want your blog listed there when I get the new site up and going.
Hey Travis, you thought about a pic for the my next web site yet?? All of it will be under a "Links" tab; as well Leela if you want your blog listed there when I get the new site up and going.
A picture... like a drawing? Or photo? Or a picture to represent my site, like a logo?
hello dave,what things they discuss on that forum?Do they discuss on helicopter construction and other related fields?
And thanks a lot for the site
and Stingray and you were talking something about a mast bearing or so...what is it all about?...share it with me too..
-- Edited by tsheten8 on Saturday 27th of August 2011 07:39:41 AM
tsheten8 wrote:and Stingray and you were talking something about a mast bearing or so...what is it all about?...share it with me too..
Not me, it was Dave. He was talking about a part for his project, the Human Interface Rotor System morphing-airframe helicopter. He has a topic on it in this same category.