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    Police use of gyros

    And on a related note... https://www.youtube.com/watch?v=bNLWPPPdW48
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    Cold jet helicopter?

    Getting further off topic...those ramjets were only 40 lb thrust each...I wonder if a hybrid electric version with electric axial compressors on the tips (electric turbofans in effect) powered by an onboard generator would be viable?
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    Cold jet helicopter?

    Where's the like button when you need it? Great story! And if anyone has any doubts.... ;-) https://www.youtube.com/watch?v=NX-911v7BHk
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    Two-bladed, non-teetering rotor?

    Yes, I guess the Weir W-3 is an example. What are the pros and cons vs. a teetering head?
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    Two-bladed, non-teetering rotor?

    Does anyone know of any successful gyros (or helicopters) using two-bladed rotors but not a teetering rotor head? In other words, using ordinary flapping and lead/lag hinges or a hingeless system? Any particular pros and cons to such a system? Thanks, Matthew
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    ELA 09 Junior anyone?

    True enough, but I guess it's more about mindset than anything else. No one expects dual controls on a motorcycle, for example.
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    ELA 09 Junior anyone?

    Does anyone have any experience with the ELA 09 Junior? And a nice clip (first half).... https://www.youtube.com/watch?v=8I0oWyyj6yU It was mentioned in this thread three years ago but not a peep since. Company ELA 09 Junior page is here. It's a 1+1 gyro with "cozy" tandem seating and no...
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    Pitcairn PA-22

    Alan and Jordan, thank you both. That first patent in particular gives some nice ideas of construction, interesting that it was drawn with reverse tricycle gear and a very big rear wheel. On the power, I am surprised to hear that. The numbers I have seen indicated a 90 hp Pobjoy as the...
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    Pitcairn PA-22

    Better clip here.... https://www.youtube.com/watch?v=jhu7ZOusZu8
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    TWISTAIR production starts

    Does anyone have any experience with the AAT Twistair since it was introduced in 2014? As it was designed with a high MTOW for utility purposes, it should be a good match for, ahem, heftier pilots including me. Cheers, Matthew
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    Most roomy Gyro or 4 seater ?

    Autogyro Gmbh in Germany is rumored to have a four-seater in the works. Aviation Artur Trendak in Poland already has a three-seater flying (pilot in center forward with passengers seats staggered behind left and right behind).
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    Pitcairn PA-22

    Thanks, I did bit the bullet on the Charnov book and have already received de la Cierva's book, so I'll have plenty of reading to do.
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    Pitcairn PA-22

    Thanks, I have the Townson book on order, will definitely check that out. I haven't yet sprung for the $60 Charnov book just yet. Yes, it did lead to the ACA models, note that the second photo above is clearly the original PA-22 modified with a new tail, cowling, and revised windscreen but is...
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    Pitcairn PA-22

    Of all the tractor gyros I have come across in my research, this is the one that most appeals to me. The size, weight and power are right in line with a modern LSA or even a European microlight. Clean up the lines a little bit, give it a Rotax 912 or a big VW conversion, maybe switch to...
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    Polish CF blades

    Site is back up: http://gyrotech.eu/
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    Tractor gyro landing gear

    Thanks, Richard, that complements what Norm (phantom) said earlier about a ground stance that is too nose high making it difficult to level the rotor to stop it in the wind. So that makes two key considerations, both being able to level the rotor on the ground and avoiding a nose-over in the...
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    Polish CF blades

    That site is not working for me at all, just a blank page.
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    Tractor gyro landing gear

    Thanks, I looked up and read the old PRA Arliss Riggs articles posted in this forum, sounds like someone I would have liked to meet! It does occur to me that the ideal tractor gyro tricycle gear might have a more nose-up stance on the ground than for a pusher in order to allow some...
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    Tractor gyro landing gear

    Here is an earlier thread with some examples of tractor gyros with tricycle gear. http://www.rotaryforum.com/forum/showpost.php?p=283429&postcount=7
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    Twin-rotor gyro?

    Oops, I am repeating myself, nevermind. http://www.rotaryforum.com/forum/showthread.php?t=38160
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