Looking to buy UAV airframe

rclinks2002 · Jun 18, 2007, 12:52 PM

Hello all
I am looking to buy a prebuilt UAV airframe if anyone has an extra collecting dust. It needs to have a speed of at least 40mph and have excellent low speed characteristics. (very short runway) Please contact me for more details. Thanks

Ben Mitchell

Munin · Jun 18, 2007, 02:32 PM

Hello Ben

Your profile location is very interesting. The Kunar province is bordering
to Pakistan.

Are you looking for noisy gas or silent electro.
IMO buy an of shelf plane/glider and mod it UAV.
Then you got a plane with aspects of your desire and config/mission type.

/Munin

rclinks2002 · Jun 18, 2007, 09:54 PM

Yep The good old Kunar province.

At Present, an electric plane is in use, but it is simply too slow for safe /effective operation.

Thanks
Ben M

CenTexFlyer · Jun 18, 2007, 11:51 PM

We have a twin boom Zenoah powered airframe. What are your budget constraints?

rclinks2002 · Jun 19, 2007, 06:53 AM

CenTex,
I think an airframe with a zenoah engine is too big/loud for my application. I am looking for an airframe that can support an Axi 41 series motor and can take off in 40feet or less (with full power run up of coarse) Additionally, a payload of about 4-5 lbs would be sufficient. (almost overkill)

Thanks
Ben Mitchell

RaptorAP · Jun 19, 2007, 09:18 AM

You need a SIG LT-40. The AXI 41 series is recommended for it and I love to fly mine, even autonomously! I moved all servos to the rear and out on the wing and it has plenty of room inside for gear.

Baby Skunk · Oct 31, 2009, 11:46 AM

Quote:

Originally Posted by rclinks2002

Hello all
I am looking to buy a prebuilt UAV airframe if anyone has an extra collecting dust. It needs to have a speed of at least 40mph and have excellent low speed characteristics. (very short runway) Please contact me for more details. Thanks

Ben Mitchell

I am a professional RC aircraft builder I have a 1/7 scale F-35 Lightning II airframe for sale it would make a great UAV, it is new and quality asembled with precision. If you are interested contact baby skunk at gregorytodd75@gmail.com or 862-250-9602 after 6:00 pm.

Tarro · Oct 31, 2009, 07:01 PM

Quote:

Originally Posted by Baby Skunk

I am a professional RC aircraft builder I have a 1/7 scale F-35 Lightning II airframe for sale it would make a great UAV, it is new and quality asembled with precision. If you are interested contact baby skunk at gregorytodd75@gmail.com or 862-250-9602 after 6:00 pm.

Gee, with Skunk in his name and 1 post to his credit this sounds like an offer you'd be crazy to pass up Ben.

lospalos · Nov 01, 2009, 04:47 PM

Quote:

Originally Posted by rclinks2002

CenTex,
I think an airframe with a zenoah engine is too big/loud for my application. I am looking for an airframe that can support an Axi 41 series motor and can take off in 40feet or less (with full power run up of coarse) Additionally, a payload of about 4-5 lbs would be sufficient. (almost overkill)

Thanks
Ben Mitchell

Check this out:
http://www.rcgroups.com/forums/showthread.php?t=859367

I have flown this beauty two seasons and one month ago crashed it because of RC control loss - i tried to get altitude record. It climbed in thermal raise 4m/s but at 1400 meters flown into cloud and was done

.
Since it had really good flying behavior i decided to build it again and make molded negative form for fuse, CAD designed wing CNC milled from 4mm plywood. Profile for wing is still CLARK-Y and it is sufficient for flying, take off and landing of this baby.
One change will be made - V-Tail will be replaced with horizontal elevator and two rudders on booms - setting with some autopilots is not easy with this V-Tail configuration.
I didn't test it with more than 3lbs payload. Unfortunately i don't have recorded any flying video. But it flies really good even at low speeds.
Was powered with AXI 4120/20 + 5s 5000mAh, 70A ESC.
If you like it send me PM.

ram0207 · Nov 01, 2009, 10:53 PM

Where are you located lospalos, that's a really impressive airframe, are you going to sell it?

DENHAMDULAKE · Nov 02, 2009, 04:04 AM

Quote:

Originally Posted by lospalos

Check this out:
http://www.rcgroups.com/forums/showthread.php?t=859367

I have flown this beauty two seasons and one month ago crashed it because of RC control loss - i tried to get altitude record. It climbed in thermal raise 4m/s but at 1400 meters flown into cloud and was done

.
Since it had really good flying behavior i decided to build it again and make molded negative form for fuse, CAD designed wing CNC milled from 4mm plywood. Profile for wing is still CLARK-Y and it is sufficient for flying, take off and landing of this baby.
One change will be made - V-Tail will be replaced with horizontal elevator and two rudders on booms - setting with some autopilots is not easy with this V-Tail configuration.
I didn't test it with more than 3lbs payload. Unfortunately i don't have recorded any flying video. But it flies really good even at low speeds.
Was powered with AXI 4120/20 + 5s 5000mAh, 70A ESC.
If you like it send me PM.

Hi Lospalos, Love your plane and construction. I am looking at similar power train to you but have a question as you have kit in question.

Looks like you have an Aeronaught folding prop with cooling type spinner. I have a AXI 4130 which is bulkhead not radial fitted in pusher config but am looking to get the same spinner as you with folding prop. Do you think there is enough clearence of prop if mounted to motor shaft plus 4.5mm bulkhead? Or if not is there anyway of making clearence with spacer etc?

Many thanks

Denham

lospalos · Nov 02, 2009, 05:29 AM

Quote:

Originally Posted by DENHAMDULAKE

Hi Lospalos, Love your plane and construction. I am looking at similar power train to you but have a question as you have kit in question.

Looks like you have an Aeronaught folding prop with cooling type spinner. I have a AXI 4130 which is bulkhead not radial fitted in pusher config but am looking to get the same spinner as you with folding prop. Do you think there is enough clearence of prop if mounted to motor shaft plus 4.5mm bulkhead? Or if not is there anyway of making clearence with spacer etc?

Many thanks

Denham

Hi Denham,
as i haven't tried it in bulkhead configuration i can't answer your question. But prop is Graupner and is well shaped so i thing there wouldn't be a problem.

lospalos · Nov 02, 2009, 06:26 AM

Quote:

Originally Posted by ram0207

Where are you located lospalos, that's a really impressive airframe, are you going to sell it?

Sorry, i'm just hobbyist not manufacturer. But when i'll have finished form for fuse, i can make more of them and prepare more CNC-ed wing profiles, perhaps assemble a few kits for persons interested.
I'm from Slovakia.

Connexxion · Nov 03, 2009, 03:56 PM

I think you'll find more people will be interested in purchasing this bird of you.

I know there are other guys in Europe who build UAV platforms,but they're asking "out-of-our-range" prices.

wbuttry · Nov 05, 2009, 07:51 PM

a uav can be any design you want it doesnt half to be the same design as anybody else make a uav is any kind of vehicle you can put autopilots sensor packs in and fly to sertin way points via gps or satelite tracking a lt 40 make a awesome uav so does a senior telemaster it float forever doesnt take much motor to fly either one the telemaster will carry 13 lbs of weight that why it uses struts on the wing panels and perfect camoflauge using a model plane anyway no one will suspect anything if they see it in the air they will think some kids are enjoying thyre hobby so do as you want but thats the way i went i use a easy star from multiplex at 75 dollars if lost no problem auto pilots gotten so small u can fly it in about anything .

Jun 18, 2007, 12:52 PM	#1
rclinks2002 Registered User Join Date: Jan 2006 Location: Prescott AZ Posts: 214	Looking to buy UAV airframe Hello all I am looking to buy a prebuilt UAV airframe if anyone has an extra collecting dust. It needs to have a speed of at least 40mph and have excellent low speed characteristics. (very short runway) Please contact me for more details. Thanks Ben Mitchell

Jun 19, 2007, 09:18 AM	#6
RaptorAP Eyes Overhead Join Date: Nov 2005 Location: Gainesville, FL Posts: 494	You need a SIG LT-40. The AXI 41 series is recommended for it and I love to fly mine, even autonomously! I moved all servos to the rear and out on the wing and it has plenty of room inside for gear. Attached Thumbnails 54.3 KB · Views: 86 55.6 KB · Views: 61 52.2 KB · Views: 83 45.5 KB · Views: 136

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Jun 18, 2007, 02:32 PM	#2
Munin Weekend flyer Join Date: Jun 2007 Location: Faroe Islands Posts: 29	Hello Ben Your profile location is very interesting. The Kunar province is bordering to Pakistan. Are you looking for noisy gas or silent electro. IMO buy an of shelf plane/glider and mod it UAV. Then you got a plane with aspects of your desire and config/mission type. /Munin

Jun 18, 2007, 09:54 PM	#3
rclinks2002 Registered User Join Date: Jan 2006 Location: Prescott AZ Posts: 214	Yep The good old Kunar province. At Present, an electric plane is in use, but it is simply too slow for safe /effective operation. Thanks Ben M

Jun 18, 2007, 11:51 PM	#4
CenTexFlyer Registered User Join Date: Dec 2001 Location: Near Austin Posts: 3,408	We have a twin boom Zenoah powered airframe. What are your budget constraints?

Jun 19, 2007, 06:53 AM	#5
rclinks2002 Registered User Join Date: Jan 2006 Location: Prescott AZ Posts: 214	CenTex, I think an airframe with a zenoah engine is too big/loud for my application. I am looking for an airframe that can support an Axi 41 series motor and can take off in 40feet or less (with full power run up of coarse) Additionally, a payload of about 4-5 lbs would be sufficient. (almost overkill) Thanks Ben Mitchell

Nov 01, 2009, 10:53 PM	#10
ram0207 Registered User Join Date: Jun 2009 Posts: 32	Where are you located lospalos, that's a really impressive airframe, are you going to sell it?

Nov 03, 2009, 03:56 PM	#14
Connexxion Registered User Join Date: Mar 2007 Location: The Netherlands-Amsterdam Posts: 570	I think you'll find more people will be interested in purchasing this bird of you. I know there are other guys in Europe who build UAV platforms,but they're asking "out-of-our-range" prices.

Nov 05, 2009, 07:51 PM	#15
wbuttry wbuttry Join Date: Apr 2009 Location: sikeston mo Posts: 190	a uav can be any design you want it doesnt half to be the same design as anybody else make a uav is any kind of vehicle you can put autopilots sensor packs in and fly to sertin way points via gps or satelite tracking a lt 40 make a awesome uav so does a senior telemaster it float forever doesnt take much motor to fly either one the telemaster will carry 13 lbs of weight that why it uses struts on the wing panels and perfect camoflauge using a model plane anyway no one will suspect anything if they see it in the air they will think some kids are enjoying thyre hobby so do as you want but thats the way i went i use a easy star from multiplex at 75 dollars if lost no problem auto pilots gotten so small u can fly it in about anything .