Hi, my name is Justas, i am from Lithuania (a small country near Baltic sea), i am 19 years old, i am studying Informatics in Mykolas Romeris university. So, after a few years of flying in flight simulators i decided that i need to go to something more serious, and i found myself in RC. I have been flying with helicopters, gliders and planes. I never had one, so i decided to make one by myself. I could buy it, but for me, building something is even more interesting than using it! I didn't need long to decide what should it look like, for sure it's predator! I decided it because i am in Lithuanian volunteers army (not professional army, more for young people who associate their future with military), so it took my eye from first shot.Firstly it should be controlled manually (because of lack of money, hard time for non working student...), and in a few months after that it should be upgraded with ArduPilot, CoPilot and GPS to become a real UAV!For a while i am not going to annoy you with questions about ArduPilot, CoPilot and GPS (i'm a newbie in that).The first thing i am going to do is to build the main Predator, it's wingspan should be about 160cm or less. (what i want is to be enough to cary about 1kg, it would be a high resolution photo camera and a video camera).After long searches all i found that could be useful was this (didn't found a good quality scheme with V tail up):
So what i need is help from people who already did this, i'd have some questions like:1. What the material should be?2. What about measurements?3. What about wings construction?4. How to attach wings?Ant i would be wery hapy if someone who did this could share theyr experience, any photos and sketches(most important to me).I'm not very good sketcher, but i tried to show the construction of the main body that i'm thinking about, what do you think about that(just a sample, form isn't very similar to predators):
Impatiently waiting for any help! Thanks and see you soon ;)
Im stil thinking how to make a frame for the part marked in red, body gets thinner, so im still thinking i two ways:
1. make a wooden frame like for main body (because behind red marker i need to connect wings, so it should be really strong construction), and to get nice form using fibreglass.
2. to change construction of the wings connection. to connect wings not in the middle of the body, but in the top (upper from original). i tried to Photoshop this way fast(i hope you will understand what i had in mind):
We can see the improvement in interior space over the Predator plans.
Great start!
We have seen quite a few members interested in a kit or ARF form of a twin boom pusher config aircraft, and few if any exist. (under the million dollar mark)
I liked UAVs that Jonas showed in his foto, Manta , so trying to make some plans, sketches, it has challenging construction (trying to make it look as much similar as i can), stucked in place where wings connects to the main body, because body goes thinner... i think i'l need to use fibreglass , using wooden frame made similar to these that i mentioned about using for predator :) what do you think? =]
The point people are trying to make is that you are attracted to the aesthetics of the big bad Preadtor, and not focusing on handling, payload, easy of construction and maintenance, etc.
Yes, the ideal UAV, esp for video, is a pusher config, but a twin boom allows you to mount an engine more easily than you would in a Predator, since a long extension is required as the motor cannot be mounted in the rear without seriously complicating the CG.
The general advice is look for an easier airframe, especially during developement of the electronics.
Comments
All the better for stability.
Im stil thinking how to make a frame for the part marked in red, body gets thinner, so im still thinking i two ways:
1. make a wooden frame like for main body (because behind red marker i need to connect wings, so it should be really strong construction), and to get nice form using fibreglass.2. to change construction of the wings connection. to connect wings not in the middle of the body, but in the top (upper from original). i tried to Photoshop this way fast(i hope you will understand what i had in mind):
Great start!
We have seen quite a few members interested in a kit or ARF form of a twin boom pusher config aircraft, and few if any exist. (under the million dollar mark)
Its just a beginning, so it will be some changes in progress, allready know where.Got any ideas, tell me, lets do this together! :)
Thanks
Yes, the ideal UAV, esp for video, is a pusher config, but a twin boom allows you to mount an engine more easily than you would in a Predator, since a long extension is required as the motor cannot be mounted in the rear without seriously complicating the CG.
The general advice is look for an easier airframe, especially during developement of the electronics.
http://www.flightglobal.com/articles/2009/04/21/325437/pictures-gen...
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