Hey ,Ive been keeping up with the forums ever since i found this site (very cool and informative),Let me introduce my self , Im a student currently in his 5th year of CSE ; We have been asked to work on a project over 2 semesters. I'm really keen on building a UAV primarily for video surveillance with object recognition/tracking .Im considering a flying wing design (i understand it requires mixing for control) along with an endurance of about 40 minutes. Ive had some experience with RC nitro Helicopters but none whatsoever with fixed wings.I also am on a budget of 1000$ (For all the electronics including the airframe).Im open to any form of advice and aid.I have a few questions , please point me in the right direction:1) Will a flying wing endure further than a regular aircraft?2) I've had a look at most of the airframes linked from this site, Mostly EPP , are there any others of different material?3)Does a Flying wing have greater payload capacity in comparison to regular aircraft ?4)I've had a look through all the materials required in terms of electronics , do i require anything different for a flying wing, please advise on servos also depending on my budget and performance ?5)umm a rather silly question ...how do these things land (wings) im in a country with 90% of its area covered in sand will that pose any difficulties in landing or disrupt electronics (do i seal the electronics in any way) ??6)Im also thinking of IR thermal imaging ..are there any cheap ways of getting that done , cuz all ive seen is 500$+ which is pretty expensive for one component.Thanks ,Abishek Hariharan
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is there any where i can find flow charts or data flow diagrams for ardupilot , if not id like to help out and make things easier for future readers. whom do i contact?
now im looking for a video downlink that hooks up with a laptop , basically im going to be running some kind of video processing software on the laptop, so USB is ideal , would it show up as a web cam?
The meaning of the propeller's numbering is diameter x pitch. A 9x6 propeller has a diameter of 9 inches with a theoretical displacement of 6 inches in a complete spin of 360°.
The dimensions of your (folding) propeller depends on the motor you are choosing. That is how much power it has (Watts) and how fast it turns (KV). Have a look at what kind of motors others are using but be aware that some of the Zagi (combat wing) guys layout their power systems for speed.
If you've found the motor you want to go with, you might also have a look at a power system calculator like Drive Calculator. It'll give you some numbers about consumption, efficiency, speed etc.
With an electric motor It doesn't matter if you are using a right or a left turning propeller - sometimes the right turning ones are called pusher propellers.
You can modify a folding propeller hub to be used in a pusher configuration. With the modification shown in the pictures the blades don't intersect in the folded position and will unfold when the motor spins up.
You can get a low end IR capable system by removing the IR filter on most cameras. It is however, no where near the efficiency of the true FLIR systems.
Googling* for Webcam IR Mod will net you a stack of tutorials and example photos.
(*other search engines available, terms and conditions apply, you home may be at risk if you do not keep up repayments.)
A flying wing can withstand a bit of wind better than a standard airframe as it has less side area to be affected. They also fly faster than a draggy conventional type so can keep working longer.
The endurance is possible.
Payload is open to debate as a bigger standard airframe will of course lift more then you would get a bigger wing and so on and so on.
Sand will get into whatever you fly, wings land on the ground, so a mat might be an option for you.
Replies
The dimensions of your (folding) propeller depends on the motor you are choosing. That is how much power it has (Watts) and how fast it turns (KV). Have a look at what kind of motors others are using but be aware that some of the Zagi (combat wing) guys layout their power systems for speed.
If you've found the motor you want to go with, you might also have a look at a power system calculator like Drive Calculator. It'll give you some numbers about consumption, efficiency, speed etc.
With an electric motor It doesn't matter if you are using a right or a left turning propeller - sometimes the right turning ones are called pusher propellers.
You can modify a folding propeller hub to be used in a pusher configuration. With the modification shown in the pictures the blades don't intersect in the folded position and will unfold when the motor spins up.
Googling* for Webcam IR Mod will net you a stack of tutorials and example photos.
(*other search engines available, terms and conditions apply, you home may be at risk if you do not keep up repayments.)
The endurance is possible.
Payload is open to debate as a bigger standard airframe will of course lift more then you would get a bigger wing and so on and so on.
Sand will get into whatever you fly, wings land on the ground, so a mat might be an option for you.
Thermal imaging is expensive, fullstop.