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  1. Giggi

    Prize Money

    What device is this? I didn't think they were nominating winners yet.
  2. Giggi

    Russian X14 Ultralight Plans?

    You may know about this already, but I found this russian forum thread with a bunch of pictures and information on the x-14 in it, not sure about plans though. Google Chrome's auto-translate works pretty well on it. http://www.reaa.ru/cgi-bin/yabb/YaBB.pl?num=1154592957/all
  3. Giggi

    Prize Money

    I could build an antigravity device powered by the negative energy contained within this thread. Surround laptop with nozzle made of rosemary and eucalyptus and then attach lawn chair. Switch between tabs to control thrust.
  4. Giggi

    Prize Money

    Small question. I just want to make sure you've factored the mass of the test pilot's cojónes into your equations. By my reckoning they're going to be roughly the size of soccer balls and made of solid steel.
  5. Giggi

    Prize Money

    Judas Priest man, that's a bit much. How many other people come here with far-fetched ideas and then actually build something to try and prove they're not crazy? Excepting the Synergy guy, nobody. I know Manolis is very confident that he's going to be successful. Some might say overconfident...
  6. Giggi

    Bolt on heli rotors for sailplanes/light aircraft

    The range of motion is different, helicopter rotors' hubs are fixed to the fuselage. The aircraft in the patent works (theoretically) for VTOL because it's appropriately powered and designed for such. Correct me if I'm wrong, but I think you have the idea that reducing the engine power of a...
  7. Giggi

    Bolt on heli rotors for sailplanes/light aircraft

    It's a tiltrotor designed for VTOL operation.
  8. Giggi

    Bolt on heli rotors for sailplanes/light aircraft

    :ponder::para::ponder:
  9. Giggi

    Bolt on heli rotors for sailplanes/light aircraft

    Yes, but the air is also moving downwards at several times the speed it's moving backwards. Any part of the wing being impinged on by the downwash is going to be at a negative effective angle of attack and won't be producing any positive lift. When at cruising speed, the effective angle of...
  10. Giggi

    Bolt on heli rotors for sailplanes/light aircraft

    Helicopter rotor-wash flows almost directly down from the plane of the rotor (at low airspeed), so it won't help wing lift like propwash does. In all probability, a helicopter with only 35 HP and wings obstructing the airflow isn't going to be super-anything, except disappointing. If I had a...
  11. Giggi

    Bolt on heli rotors for sailplanes/light aircraft

    May I present the CarterCopter. (Edit: Photo is actually of the Carter PAV) http://www.cartercopters.com/prototypes I hear it works very well, but that's because it's a carefully engineered original design and not just a normal plane with a rotor "bolted" on top.
  12. Giggi

    Building your own engine? Does anyone do this?

    I plan on making a model engine or two in the future, but my strategy is to obtain a good 3D printer and investment-cast nearly all the parts using printed patterns. Will require some finishing where tolerance is critical, but with accuracy that can go below 0.03 millimeters the rest of it...
  13. Giggi

    Review of the Affordaplane?

    Isn't the idea of evolution that the more successful an organism is the more it gets to reproduce? :gig:. I suspect the only reason so many Affordaplanes even exist is that somebody trailered two of them into the same hangar and left them without supervision. They'd never be able to find mates...
  14. Giggi

    Design/Graphics Computer Question

    I'm not very familiar with Apple computers, but I do know that the performance-to-price ratio is lower than windows machines, and the range of software available is smaller. The advantage is that (when it comes to laptops) they have extremely long battery life, they're smaller and lighter, and...
  15. Giggi

    Jetpacks currently suck. What are the flaws, and how can we overcome them?

    Especially if they're delta wings that give you vortex lift. Though level flight would need to be faster.
  16. Giggi

    Jetpacks currently suck. What are the flaws, and how can we overcome them?

    If the mission is to fly long distances fast in a VTOL light enough to carry, I'd just abandon the jetpack concept and put those engines into a hoverbike or maybe tiny fabric-covered airplane, with a seat and a windshield, that folds up when you need to carry it. Likely no heavier than a VTOL...
  17. Giggi

    Rules for building scale model that flies like full-size plane?

    Wow. That worked. Does the advanced search work differently from the normal search, or is it just my grasp of the english language that's the issue, I wonder...
  18. Giggi

    Rules for building scale model that flies like full-size plane?

    I recall reading a thread here some time ago in which someone detailed a procedure for designing a 1/3 scale rc plane to give it "degraded" flight characteristics so it performs more like a full-scale version than a typical model, despite the lower reynolds numbers. Mainly it used some...
  19. Giggi

    Water Rocket?

    I think I've seen that, but I'm almost certain the piston was pneumatic not hydraulic.
  20. Giggi

    Jetpacks currently suck. What are the flaws, and how can we overcome them?

    If the compressor is intercooled, yes. I like the concept of intercooled jets, although they're technically challenging to build... I drew a diagram, please forgive (and/or point out) any violations of diagram-drawing convention I've made. I don't do this very often :speechles The...
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