wow dalla visuale in prima persona si apprezza un ottima velocità e con pochi giri del motore, soltanto che sento un rumore come di flappeggio, cos'è? l'ala col bordo d'uscita che da qualche parte flappeggia? ( da mettere più in tiro gli elastici delle stecche) oppure questo suono viene dalla lunga marmitta di scarico del motore?
The wings which you used in triangle shape, what is it called? What kind of material or cloth which you used? Can you make a video on how to get prepared?
The wing which fits for the trike is Made by Wills Wing (hang glider manufacturer) in the 80's. Their frame usually made from high quality aluminium alloy tubes, in the newer types you can meet carbon instead of aluminium. The wing cloths are often made from polyester or nylon fabric which is windproof, best if it has polyurethan coating too (UV resistant). For this use more expensive materials with fiber reinforcement are available too. Maybe I will make a video in the future about the wing conversion which show the critical parts of the wing which need to be more strenght for motorized application. By the way, this wing is not my creature, mine is still in design phase. I really do not recommend to build a wing or a trike, if you don't have enough experience!
Have you added any extra meat to the keel tube? I am about to start building and my only concern is the amount of torque the trike mount block could show the keel in a scruffy or crosswind landing. I can't find much info anywhere on the issue.
Where the wing meets with the trike I added a PVC tube to avoid wears and I made a two-point hanging joint to help share the load on this narrow keel and reduce the bending stress in the tube plus I added one more 70cm inner sleave, so it contains three layers of aluminium tube on that part. Without trike on hang gliding the pilot just hang on a rope, so the keel don't get this type of torque. The problem starts when the hanging joint (mount block) and the trike vertical keel is rigid and tight too much. Probably in practice a crosswind landing not a big problem from this point of view. Rather a "scruffy landing" when you catch bushes with your side wires... The size of this torque mainly depends on: -how much flexible or rigid is your hanging joint -moment of inertia of your trike Proper sizing of your keel is very important. The best if you use at least 3 layers of aluminium tube for your keel. Use different end points and start points for your inner and outer sleaves to avoid local stress points has to be formed by the mount block. Every wing is different so the best way to make a safety microlight if you good at statics calculations and you can verify your own decisions. Search and study microlight wing documents on the internet, because they are often contains technical drawings. Lenghts, diameters and alloys of the frame are the key. They are give you good basics if you want to build your own machine. For example Air Creation has some good drawings. Good luck and stay alive!
Cheers for that man. Those Air Creation drawings are not perfectly revealing but they are the best drawings I have seen so far so thanks for the info. The keel to trike joint is the only part of the project that makes me nervous! My hang block is 70mm in acetal (pom) with a 50mm stainless bracket. I have the material to add tight fitting 7075 internal sleave (50mm) for the keel, I don't know yet if the glider I bought already has a 50mm internal sleave centering on the hang point, I only just picked it up (Avian Fly 17) I'll have to pull it out and have a look/measure its length and placement... I like the idea of a third shorter sleave just to make sure... I may have to machine one if I can't dig out any 54mm, that won't be fun! I prefer the square profile trike masts because they will twist easier in torque compared to a tube... Less stress on the keel.
hello friend. I have magic 155 airwave glider. max pilot weight is 97kg. i want to connect with trike. total weight is (passenger, trike, fuel) 130kg. i did some fixation on wing, sleeve the keel and make side wires to tube. thank you for your help. i think you are experienced in this way.
It is 521cc (2 stroke, boxer-twin) and almost 40 hp (at 5500) in this configuration. With tuned exhaust it's capable at least 50 hp at higher RPM. I'll make static thrust tests in the future on different speeds to calculate power.
You are 100% right. I was very close to kill my self too after many years of motorless hang gliding. The steering, pitch and especially the bank is completely different. In HG you are using your own body wheight, but with engine and undercarriage you have more than the double. If you dont understand the trick to control with more wheight you are doomed to meet the ground the hard way.
