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Post Info TOPIC: AW XH 1 Copter construction


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Date: Aug 27, 2011
RE: AW XH 1 Copter contsruction
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davh12 wrote:

Travis,

It can be whatever you want to advertise your site. No charge. Networking can be very extensive if you use the net resourcefully. [...] Be creative if you wish. It's a tab for usful, interesting, and helpful links.

Dave


 

In that case, how's this? I hope it's not too big. Took me 2 hours to complete.

http://stingraysrotorforum.activeboard.com/t37022560/stingrays-general-artworks/?page=2#lastPostAnchor



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Date: Aug 30, 2011
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Uploaded your logo on my blog as well.

http://envisionrotorsystems.blogspot.com/

Dave



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Date: Aug 30, 2011
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Thanks so much, Dave!



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Veteran Member - Level 3

Posts: 317
Date: Sep 1, 2011
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Travis,

No issues and you're quite welcome.

Dave



-- Edited by davh12 on Thursday 1st of September 2011 09:18:25 PM

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Date: Sep 23, 2011
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Hi everybody,recently,i was working on my chopper and got the idea to modify the airframe..i have used ms-paint to edit the aw choppy drawing in the plan..i will post its photo next time..and i have decided to use iron square tubes coz i am facing difficulties to find aluminum tubes here in my place..i am going to use them for the fuselage frame..the tail section i am going to replace with a light pvc tube..

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Administrator

Posts: 3381
Date: Sep 23, 2011
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Oh goodie, I can't wait to see your illustration! I'm an MS.Paint veteran myself. aww

And just a technical nitpick, I know I have no engineering experience to back this up, but it sounds like your alternate airframe is going to be very heavy with iron tubes. And PVC tube you must be careful with, as there are lots of different variations of it. Some brittle, some super tough. Some far too flexible, some stiff as a board, though during my experience with building film props with PVC, I've learned that the more stiff kind (especially the plain white kind) break more easily, especially when exposed to the sun for a long period of time. Choose wisely, my friend.



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Date: Sep 25, 2011
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Hi stingray,thanks for your comments..and the airframe certainly is gonna be heavy..but the pvc tail as you mentioned is prone to easy damage...that's why i have thought of using those iron tubes..i am aware that i must keep the weight of my chopper down..i will design the airframe in such a way that i will gain the best strength to weight ratio even with the iron tube..hopefully!..

Here is the rough design...



-- Edited by tsheten8 on Tuesday 27th of September 2011 01:57:52 PM

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Administrator

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Date: Oct 2, 2011
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Looking great, tsheten8! The enclosed canopy is a nice touch.

I'm curious, what are you going to name and designate it? The Tsheten Model 8? biggrin



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Date: Oct 6, 2011
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Hi  Stingray...thanks for the comment...aww..But Gunship has recommended me not to use iron tubes...instead he has told me to use another kind of cheap aluminum which is used in making car canopies...still having some confusion about the airframe...no...

Regarding the engine,i have decided to buy a BMW motorcycle engine...only if Gunship and airfoil don't find a suitable one for the choppy...i don't know what they are uptoashamed..

Anyways,I'll keep posting on the forum as my project advances and takes shape into the aw choppy...Stingray,is it possible for you to find a bevel or spur-worm gearbox with transmission ratio of 3.6:1 and a couple MRC 5300 bearing in your place?..I am trying to find but can't find any...no



-- Edited by tsheten8 on Thursday 6th of October 2011 10:37:27 AM

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Administrator

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Date: Oct 6, 2011
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Sorry, I live in a town smack dab in the middle of nowhere, so I can't find anything aircraft-related around here except for a small glider station down the road that's only open on Saturdays.

I think Darrell and Alan are better suited for the search for these parts.



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Date: Oct 10, 2011
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hi Stingray,it's ok if you can't find the parts i specified you...awwhere i am also trying to find the required parts...

By the way Stingray,did Darrell ever login?...I think he's on a vacation to meet his family...he's saying that he might be delayed a bit...wanted to know if he's backsmile



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Administrator

Posts: 3381
Date: Oct 10, 2011
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He hasn't logged in for a surprisingly long time.

But it wouldn't be the first time an active member did so... Leela25 mysteriously dissappeared once, for almost three months in a row, but then she came back.

I guess just give him time. hmm



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Posts: 223
Date: Oct 11, 2011
AW XH 1 Copter construction
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Oh...Then he might be with his family...blankstare...he told me that he'll take some time...

Stingray,I have known that the engine i was talking about uses diesel...is diesel engine suitable for aircrafts?....

And currently,i am searching for the sprocket required for the choppy...it is specified in the plan as Morse B SPROCKET 45T..do you or any member on the forum have any ideas about the technical specifications of this sprocket?...I am asking about it because i have found two sprockets...on has 48 teeth and the other has 46 teeth...which one is close to the specifications of the above mentioned sprocket?...are both of this sprockets suitable for the purpose?...and what about the diameter of the real stuff?..

Kind help is always expectedaww

Attached herewith is a modified airframe for the choppy hobbycopter....



-- Edited by tsheten8 on Tuesday 11th of October 2011 01:01:43 PM



-- Edited by tsheten8 on Friday 14th of October 2011 01:06:55 PM



-- Edited by tsheten8 on Friday 14th of October 2011 01:14:44 PM

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Veteran Member - Level 2

Posts: 223
Date: Oct 19, 2011
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Hi everybody,here is a new design for the aw choppy i've designed...By the way,is there anything wrong in using iron tubes for the airframe?....One thing is for sure that it will weigh more...But will it affect the performance of the aircraft by a greater extent?...I don't think soconfuse....Give me some advicewink

Hey,this is especially for gunship...There is a factory in my country which manufactures a mild steel...it's lighter than ordinary steel and is used in making furnitures and other structures...I have made the tail rotor pedals out of it...Can i use this stuff for the whole airframe...



-- Edited by tsheten8 on Wednesday 19th of October 2011 01:12:35 PM

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Date: Oct 25, 2011
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I wish I had engineering experience to give you more helpful advice. But I still think your airframe will be heavy with this material. Yes, the weight will affect it's performance. However, if you say it's lighter than normal steel than I guess you can give it a try. 



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Alan Dallas


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Date: Nov 2, 2011
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Hi Gunship,what's up?....This time I have got a deal to make with you...You know I have decided to use aircraft grade aluminum...Will it be possible for you to shop them for me?....The deal is that I will send the expended amount monthly until I finally pay the whole amount to you...What do you say Gunship?...

And did you find anything for the choppy?...

I will send the list of the materials when you accept the deal...

TRUST ME PLEASE!!!!!!!!!smile



-- Edited by tsheten8 on Wednesday 2nd of November 2011 12:31:10 PM

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Date: Nov 9, 2011
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This company in Austrailia may have plans. I know they sell parts.

http://www.propeng.com.au/catalog/

Regards,

Dave



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Date: Dec 6, 2011
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Hi tshetan8 Peter here, if your going to use a bmw engine, if its air cooled you need to make some kind of forced air provision, the original triumph engine machine had cooling problems, good luck with the biuld.biggrin



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Date: Dec 11, 2011
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Thanks for the advice friend...but I am not sure if i am really ging to use a bmw engine...i still haven't found one...can you help me with the project?...

For now.I have only some downloaded photos of a prebuilt aw 95...



-- Edited by tsheten8 on Thursday 22nd of December 2011 10:13:16 PM

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Date: Jan 24, 2012
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Uploaded above are some pre-built aw 95 images

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Administrator

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Date: Jan 24, 2012
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Hi tsheten8, I want to apologise, I forgot to help you with Rotary Wing Forum issue. I'll get right on that soon, just let me finish up on some college work first. wink



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Date: Jan 24, 2012
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Hi stingray,it's ok regarding that issue..you can do it for me anytime ..about the build,i am still struggling..but soon,i am planning to buy an engine and aluminum tubes and start off with my dream..till then goodbye and take care my friend

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Date: Feb 3, 2012
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I think the AW ChoppY project is now becoming an AW 95 project...I researched on the net and found out that AW 95 is the up to date of the choppy...The plans too are much clearer than the one I've got...Everything redesigned...Costs around US $100 and offered by Vortech Incorporation...Any one there to help me with the plans purchase...

This is especially for Gunship,dave and Stingray...recently,I went to a border town near my country and happened to visit a workshop...good news is that there are aircraft grade aluminum and steel like 6061 T-6 aluminum and 4130 steel in all forms ...I've decided to go down there soon and buy them...About the engine,the AW 95 uses a modern 2 stroke Rotax 503 engine which is quite expensive...for me I have decided and ordered a motorcycle engine producing between 50-70 Hp at 6200-6500 RPM...

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Date: Apr 11, 2012
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One serious question I have got regarding the type of aluminum I'm thinking of using...just yesterday,I was off in the capital city...I saw an aluminum tube..it was square shaped...I have no idea what grade it is...but seems perfectly suited for building the airframe of my helicopter...it's really strong...

This type of aluminum is widely used in structural construction...I thought of sending a photo of it..but I couldn't take a snap...

Any advice is greatly appreciated...

Tsheten8

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Date: Apr 11, 2012
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Without a photo I couldn't really give you proper feedback, but a square diameter is definately the best shape for this airframe design. I'm glad to hear it's strong too, but hopefully at least a bit light as well. wink



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Date: Apr 11, 2012
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Yes Stingray,it also light...and you know,I weigh less than 45 kilos...tomorrow,I am moving back to the capital...I'll make sure I take some snaps there...

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Date: Apr 26, 2012
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I am sorry,I couldn't really take any snaps of it till now...but the aluminum tube I was talking earlier about is called PATA aluminum...any idea on this kind of aluminum?...

Tsheten8

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555


Former Deputy Administrator

Posts: 803
Date: Jun 11, 2012
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tsheten8 wrote:

Uploaded above are some pre-built aw 95 images


 

Tsheten, do you have permission to use these photos of someone else's AW.95? If not, at least provide a link as to where you got them. Thanks.



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Date: Jun 17, 2012
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Okay 555,I'll do as you said hereafter.....

regards,
Tsheten

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