The first Unfixed wing UAV in the world

[amir_7569]

Hi too all.
Im amir from iran and i recently could design and make the first unfixed wing UAV in the world.
My UAV name is DR-hesabi.
DR hesabi was a great man in iran.
Now I work on Autopilot system for it.
you can see my UAV in :
www.drh-uav.mihanblog.com

but that site is in Persian language.

[Hogster]

How do you define an 'unfixed wing' aircraft? :confused: I can see that there's a joint half way down the wing, but what's it for? Does the wing fold there for transport? Does the wing sweep? Does each wing rotate along its axis so they work as wingerons (where the wings twist independently to give roll control)?

Looks nice though ;)


David

[dalbert02]

Very cool Amir! :)
Although our governments do not like eachother, it is very kind of you to share your work and ideas with us. I wish I could read Persian!
-dave

PS Please be carefull about posting the same info in many threads, many people do not like that and will flame you. The UAV forum is probably the best place for your info.

[d_wheel]

Hi too all.
Im amir from iran and i recently could design and make the first unfixed wing UAV in the world.
My UAV name is DR-hesabi.
DR hesabi was a great man in iran.
Now I work on Autopilot system for it.
you can see my UAV in :
www.drh-uav.mihanblog.com

but that site is in Persian language.

If you are referring to pivoting wings (http://www.freewing.com/paradigm.html) , then it would seem that you are not the first. Models (UAV's) have been used for testing this type of wing for some time now. If it is not a pivoting wing, then please explain further.

Later;

D.W.

[Unterhausen]

Looks like his wings sweep. I'd like to understand the rationale for that on such a slow flying airplane.

[lvspark]

Maybe to change CG location inflight if the payload changes?
http://havafaza.persiangig.com/video/Flash/Drhesabi.swf

[amir_7569]

very very thanks to lvspark for get link of my 2d animation from my weblog.
im very alone and self created that animation.
that animation give us very good information from CG.
who have a good Idea for me to make it better?

[amir_7569]

How do you define an 'unfixed wing' aircraft? :confused: I can see that there's a joint half way down the wing, but what's it for? Does the wing fold there for transport? Does the wing sweep? Does each wing rotate along its axis so they work as wingerons (where the wings twist independently to give roll control)?

Looks nice though ;)


David

My UAV can chang CG very More that show in the picture!
(in this site www.drh-uav.mihanblog.com)
in that pictures you can see 30 degress change wing but Now it can to be 45 degress or more !
thank mr david
best regards
Amir Aalipour

[amir_7569]

If you are referring to pivoting wings (http://www.freewing.com/paradigm.html) , then it would seem that you are not the first. Models (UAV's) have been used for testing this type of wing for some time now. If it is not a pivoting wing, then please explain further.

Later;

D.W.

Hi D_weel
My UAV is very difrrent from your share UAV. Drh Uav can Get more speed with very low Drag by getting the wings OFF. it cant relate! it can open and close by the controller or pilot. that you show is very difrent and it isnt The First! some years ago I found One off plans that you show.
Amir Alipour
Best regards
www.drh-uav.mihanblog.com

[macboffin]

Salaam aleikum Amir. Man Khodam az Scotland amadam, valle shish sol kargar budam dar Iran, pish az Enkolob. Mohandes havaipeima hastam, ostad havanardi; baraye takriban panjar sol kar e man nakshah baraye UAV, va ziat sakhtam dar bist kishvar.
Fahmidan nist cheragh in UAV e shuma mokhtaleff hast az UAV digar. Chiz e digar, cheragh lazem hast kheilly tund parvaz?
Agar lazem ast kheilly tund, behtar agar bal esh kuchik ast? Al ba te, an tur jar bozorgtar lazem ast baraye parvaz.
Vaktike man zaban e farsi neveshtam, shuma famidi?
Mac

[CenTexFlyer]

Well....look at YOU, Mac!

[amir_7569]

Salaam aleikum Amir. Man Khodam az Scotland amadam, valle shish sol kargar budam dar Iran, pish az Enkolob. Mohandes havaipeima hastam, ostad havanardi; baraye takriban panjar sol kar e man nakshah baraye UAV, va ziat sakhtam dar bist kishvar.
Fahmidan nist cheragh in UAV e shuma mokhtaleff hast az UAV digar. Chiz e digar, cheragh lazem hast kheilly tund parvaz?
Agar lazem ast kheilly tund, behtar agar bal esh kuchik ast? Al ba te, an tur jar bozorgtar lazem ast baraye parvaz.
Vaktike man zaban e farsi neveshtam, shuma famidi?
Mac

Salam dooste aziz
Are zabane farsie shoma ra fahmidam
Agar doost dashtid mitavanid ba emaile man tamas begirid. omidwaram linke animation 2d ma ra dide bashi. dar http://havafaza.persiangig.com/video/Flash/Drhesabi.swf
mitooni bebini .
bale havapeyma jam mishavad ta havapeyma betawanad sorate bishtari begirad. shayad lazem bashad az yek mantaghe FARAR konad. intor nist ?
dar zemn man ham tarahi mikonam wa tarhe havapeymaye dr hesabi ham kare khodame. kheili roosh zahmat keshidam. fekr mikonam ke dar jashnware ghabool besham ra rotbe bartar ra kasb konam. albate in ra ham begam ke khoda ro shokr davarane jashnware tahsil karde hastand wa be ehtemale ziad reshteye mohandesie havafaza daashte bashand. dar kol in masael ro mifahmand. dar har soorat Az shoma sepas gozari mikonam
in jomle ra faramoosh nakon:
Savabe Elm dar Amoukhtane An be digaran ast.
Ba sepas
best regard
Amir Aalipour

[macboffin]

Well....look at YOU, Mac! Bashful grin!

[macboffin]

As I was saying to Prince Phillip only the other day,"I hate names droppers, don't you?" Many years ago I did a bit of work with Barnes Wallis, and got to see some pics and hear some stories about a big R/C swing wing aircraft which was tested in the fifties. The wings swung through about forty degrees.The jet engines were mounted on the wing tips! One guy steered the thing in roll and yaw, another controlled pitch via wing sweep angle. Primitive R/C gear, slow reflexes ; demolition of plane and a herd of cows!
I guess that was a pretty early unfixed wing plane. Even earlier a Russian biplane that folded the bottom wing up so part nested into a recess in the fuselage side, the rest into the undercambered top wing. Flew pretty well, wide speed range, but prone to crashing if the various bits jammed up.Would make an interesting scale model!

[JetPlaneFlyer]

Maybe to change CG location inflight if the payload changes?
http://havafaza.persiangig.com/video/Flash/Drhesabi.swf

Would it not be a lot simpler to mount the payload on the CG ;)

I cant think of valid technical reason to have in flight adjustable swing wings on a low speed prop driven UAV :confused: Which probably explains why this is the only one. Still an interesting model though :)

Steve

[dalbert02]

Macboffin.
UAV Master.
Technilogical Guru.
Aerodynamic Virtuoso.
Foreign Language Specialist.
Is there anything this man can't do?

-dave

[d_wheel]

Hi D_weel
My UAV is very difrrent from your share UAV. Drh Uav can Get more speed with very low Drag by getting the wings OFF.

I understand now but can't see how this is different from the F-14. How is your model different? I saw videos of a model Tom Cat flying several years back with swing wings. Your model is nice, but isn't the first of it's type as far as I can see.

Later;

D.W.

[clolson]

This past winter I sat in on a couple brain storming sessions with the idea of creating a purpose built UAV airframe from scratch. A large variety of mainstream things were suggested, quite a few strange and off the wall suggestions were made ... even goofy stuff said in jest that sort of might seem like it would have a chance at doing something useful ... until you thought about it a bit more. We all thought we were being extremely original and creative.

Then this spring I had a rare chance to visit the USAF museum in Dayton, OH and they had a static display of miniature models outside their cafeteria ... hundreds of them going back to the early days of aviation. I swear that every idea we came up with (even though we thought we were being original) was represented in that display ... even the joking stuff we came up with as comic relief ... clearly someone had already tried it, and tried it back in the 20's or 30's even .... and survived with their design long enough for others to see it and model it. I was surprised that all our supposed originality was simply duplicating other's previous originality ... I guess there's really nothing new under the sun.

Curt.

[JetPlaneFlyer]

Here's a plan for a working swing wing F14: http://www.parkjets.com/f14-tomcat.html

[amir_7569]

Hello to all
Im amir and iam from iran. i recuntly could design and create an UAV that is the first unfixed wing UAV in the world.
you can see it with news in:
please sent your Comments in my weblog.
www.drh-uav.mihanblog.com
Best regards
Amir Aalipour

[amir_7569]

Hi to all.
im amir again. im am friend that i like friendly. i dont want to have a bad diccation to any one. the manager of rc group send me an alert or warning. why? why for what?
if iam going unlaw pleas tell me!
best thank to my friend John from Scotland and Lizard from USA.
best regards for all friends.

[Mark Harris]

Welcome back amir!

[dalbert02]

Welcome Amir,
I think the moderators deleted your post because you cross posted the same information in many forums. Please continue to share your ideas, but stick to posting in just one forum at a time.
Best wishes for continued success,
-dave

[workshop]

dalbert02 got it right... you got in trouble for spamming... What you did was not against US law but it was against the rules of RCGroups. No problem.

Thanks for re-joining our group and sharing your work and ideas. This is mostly an international group of UAV designers and engineers and we try to keep the politics to a minimum (or at least start a separate thread). :D

The Americans on this group are free to discuss anything given our freedom of speech rights however, I also believe we are prohibited from exporting UAV systems or sub-systems to several listed countries. Perhaps someone here is familiar with the letter of those laws; I am not.

Welcome Amir… we’re glad you’re here…

Jeff

[amir_7569]

thanks for all friends.
i dont know what is the rcgroups law but i think all can unlaw the laws but the rc managers getme only!!!!! becuaes im iranian?
i have many friends in USA and England and germany but they are not stupid. they have very good calture.
so i dont know aboat RCgroups managers.
im a designer but iam nut enginear im 17 years old.
BA SEPAS AZ HAME (mean Thanks a lot to all)

[workshop]

No... :rolleyes:

Everybody is persecuted from time to time. The challenge in life is not to take it personally.

There are many Iranians living in the US having fled the revolution. Because they were wealthy enough to escape Iran they were also well educated and able to be successful in America. So you may be surprised to find that the Iranian people are favorably represented in the U.S..

Many people abroad think that Americans hate other people of the World. That couldn’t be more wrong. We are more accepting of individuals than we are given credit. Think about it for a moment; America is only made up of people from other places (including the American Indians who came from Asia and South America). We have an accepting and welcoming culture.

I’ll make you a deal Amir, I’ll look past your current president if you look past mine… ;)

Jeff

[LukeZ]

I’ll make you a deal Amir, I’ll look past your current president if you look past mine… ;) Hear, hear! Words to live by.

That one really had me laughing, but it's a great philosophy behind it. I agree totally.


Luke