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  1. Steve_B

    The 3DRCForums -Discuss Anything Thread-

    It's the opposite side of the mouth of the river Dee from Nig Bay called locally 'Fittie', those are the old fishemans cottages dating back to 1800. I think the sewage theory is unfortunately correct but the local media hasn't picked it up yet. There is a sewage treatment works just across the...
  2. Steve_B

    The 3DRCForums -Discuss Anything Thread-

    You think you have windy?.. check the attached photo, this was taken today in aberdeen at the seafront. The white stuff covering the ground, cars and houses is foam from the waves crashing ashore. These houses are 60m away from the actual water line. So for those who think they can fly in...
  3. Steve_B

    Inverted harrier, how do you conquer it?

    Not forgetting that when 'done low' you get to see (and hear the sickening crunch of) your mistakes nice and quickly too:(
  4. Steve_B

    Extreme Flight Owners Thread

    Clear blue skies here again today but rather windy. I got six flights in on my Laser and AJ Slick but the conditions weren't conducive to pushing the envelope, so I just drilled some holes in the sky. I'd have got more flights in but I had to help my flying buddy recover his PZ Corsair from the...
  5. Steve_B

    The 3DRCForums -Discuss Anything Thread-

    It's a newer model, supply and demand? Bottom line is that it doesn't really matter 'why', it just 'is', so make your choice.
  6. Steve_B

    Inverted harrier, how do you conquer it?

    I'm sure you are right. Although I can fly inverted fine, circuits, figure eights, low(ish) passes etc it's still not nearly as natural feeling as flying the right way up. I'm having to concentrate pretty hard all the time. If I could get to the place where inverted was as natural and effortless...
  7. Steve_B

    Inverted harrier, how do you conquer it?

    Not necessarily. Most 3D models will wing rock a bit if your harrier technique is less than perfect, some are worse than others of course, and some rock no matter how good you are. Larger vertical stabs certainly help (you may have seen the testing videos I did with a HK Slick) but the guy on...
  8. Steve_B

    To Vortex Generate, or Not?

    ok we both agree that post stall lift is irrelevant for 'real' full size airplanes (with the possible exception maybe of some jet fighters) because 'real' planes don't have enough thrust to push a massively inefficient high drag stalled wing through the air. However the subject here is 3D...
  9. Steve_B

    Inverted harrier, how do you conquer it?

    Me too. I'm ok with 'normal' inverted where i can rely on good old 'bank and yank' turns, and maybe the odd jab of rudder if I'm feeling adventurous. But getting my brain to reliably deal with both reversed elevator AND reversed rudder at the same time, in addition to the careful throttle and...
  10. Steve_B

    To Vortex Generate, or Not?

    Space, I'm not disputing the fact that planes 'fall out of the sky' when they stall. When the wing stalls the lift decreases to less than the planes weight so the plane will fall, and quickly. But that does not necessarily mean that the wing isn't making any lift at all. I covered this in my...
  11. Steve_B

    Motrolfly DM 2820 motor

    I've been running a DM-2820-750kv for just short of a year now, it's a fantastic motor. They are incredibly tough little motors, stronger than about any other motor of this size due to their use of no less than 5 bearings, most other motors of this size have two or three. here are some static...
  12. Steve_B

    To Vortex Generate, or Not?

    Space, I'd debate the point that "a stalled position and airspeed under normal conditions would mean that the plane does not generate lift at the wings" As I mentioned in previous post with actual wind tunnel test data to back it up. Wings still do make plenty of lift post stall, in fact they...
  13. Steve_B

    To Vortex Generate, or Not?

    Yeah, transition into stall is one area where i could see VG's making a difference. It's hard to see what they would do once the wing was fully stalled though, but there could be some effect going on that I've not thought about. It's always incredibly difficult to do meaningful testing when...
  14. Steve_B

    To Vortex Generate, or Not?

    I'd imagine that the idea would be to operate at an altitude where it was unlikely to get 'riddled with bullets' or hit by missiles;). It's service ceiling is 22,000ft (over 4 miles up) so it would be pretty safe up there and I'm guessing it would also be a hard/impossible target for missiles to...
  15. Steve_B

    Extreme Flight Owners Thread

    Same conditions here in Aberdeen, beautiful blue sky, hardly a breath of wind. I got 11 flights in, that's all the batteries I had. I managed not to crash anything and in the good conditions I was even pulled off some half decent hovers and some KE 'death slides' down to just a few ft off the...
  16. Steve_B

    EF 48" Laser EXP

    You can always spot Daniel's videos by the " thanks to the lord etc. etc." credits at the end. I don't think he would let a video out without it (each to his own)
  17. Steve_B

    EF 48" Laser EXP

    Ok I'll come clean.. it was me:) i wish:rolleyes:
  18. Steve_B

    To Vortex Generate, or Not?

    You might regret getting me started on the subject of aerodynamics:) To understand how VG's work you need to think about how the boundary layer (that's the thin layer of air next to the wing surface) moves. In smooth laminar flow the boundary layer slides smoothly over the wing surface. When...
  19. Steve_B

    3DHobbyShop 51" AJ Slick

    the fuselage tube is not phenolic, it's glass fibre, and it's very thoroughly CA'ed in place. The tube is flexing for sure, the wing tips will move a good couple on inches with only moderate force. I can flex the carbon joiner tube when it's removed from the plane, it's half the weight and half...
  20. Steve_B

    To Vortex Generate, or Not?

    Actually conventional wisdom is that the wash from the prop forms a contracting stream tube, at least for the first few inches from the prop: http://www.mh-aerotools.de/airfoils/propuls4.htm
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