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    dynamic soaring at Stratosphere?

    Dynamic soaring (DS) gains energy from wind shears, not uplift thermal. Radio controlled model glider made of Carbon has reached 400mph by DS method. Albatross can fly DS at open ocean for 3000 miles barely moving their wings. So how about lifting a very solid glider up to Stratosphere and try...
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    Rocket RV suitable for high altitude mountain flight?

    Thought about Bearhawk and Glastar, but Bearhawk is designed to be a four-seater and there're excessive structural weight I don't need to be a two-seater. Glastar is a good candidate equipped with TIO-360, but if your landing strip is at 5000 meters high(17000 ft), would the power loading of a...
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    Rocket RV suitable for high altitude mountain flight?

    Alright, so let's set the new criteria: one TIO-540 engine, two seat, 700lbs useful load, removable wings. The removable wings are a must considering the airplane usage enviornment. I can't find a proper condidate model so far. If I would consider to modify an existing airplane to meet the...
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    Rocket RV suitable for high altitude mountain flight?

    Interesting enough I know one of the Chinese shareholders who acquired the Sherpa company and the PA18 rights. They are trying to sell the Sherpa to the military for border patrol. I saw Sherpa at OSH when it showed up for the first time in '05 or '06. It's a very good candidate for high terrain...
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    Rocket RV suitable for high altitude mountain flight?

    Cheapracer, what airplane model you are talking about being built in Deyang? I am not aware of it. Do you fly in China? You've been in China long enough to know that literally all private flight in China are covet or "black flight" in Chinese. My friends and I are thinking to fly to Tibet from...
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    Rocket RV suitable for high altitude mountain flight?

    Are F1 Rocket/Harmon Rocket/Super RV7 or the like good option for hight altitude flight including takeoff and landing at 5000 meters (16000 feet) and mountain area? Why am I considering them for this mission profile? 1. High power loading (much better than LSA-type with Rotax 914) for short...
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    Rutan's Bommerang-like high altitude twin STOL concept?

    aircar thank you for the comment. I will keep alert of the circumstances for sure. I am looking at the autogyro seriously now for its much better resistance to gusty and cross wind. Climb rate is important, but wind resistant capability is even more important considering the mountain and...
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    Rutan's Bommerang-like high altitude twin STOL concept?

    thank you Harrisonaero for the clarification:). That's right: I just hope to borrow the Boomerang's single engine out safety feature in the design. Could that be possibly done?
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    Rutan's Bommerang-like high altitude twin STOL concept?

    你好，马克，我的QQ 756283508
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    Rutan's Bommerang-like high altitude twin STOL concept?

    yeah, actually I am thinking autogyro seriously especially studying the modern European design. Autogyro is very resistant to cross wind and turbulence which is very useful for the mountain flying. The problem is no twin autogyro design.
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    Rutan's Bommerang-like high altitude twin STOL concept?

    in-line twin engine configuration is the easiest way, but its disadvantages are obvious too: low efficiency(quite serious for this type of mission) and rear prop clearance on the ground.
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    Rutan's Bommerang-like high altitude twin STOL concept?

    Hi everyone, What's your thoughts on the conceptual design of a high altitude twin STOL airplane using the twin safety method of Rutan's bommerang? This airplane would be specifically used in Tibetan-like area for observation, search and rescue, supply and medivac. Like the old saying about...
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    airplane choice for takeoff and landing at 10000 ft.Tibetan area

    Tehe Slovenia designed Vinus SW equipped with Rotax 914 is also a very good choice, but the barrier is the price--the kit price is almost three times higher than kitfox or Xenos!! Also I read that the Pegasus GT 450 trike with Rotax 914 have successfully flown over Mt. Everest and Kilimanjaro...
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    airplane choice for takeoff and landing at 10000 ft.Tibetan area

    The french designed MCR-01 seems to be a good choice except for the higher stall speed than other airplanes. We calculate that with a Rotax 914, it can have the same 1800ft/min climb rate at 10000ft as at sea level. However, its landing speed, which is 55mph at sea level with its powerful double...
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    airplane choice for takeoff and landing at 10000 ft.Tibetan area

    Hi, I am a private pilot flying in China. My friends and I are seeking a proper airplane suitable for flying at Tibet area. Prerequisites are: two seat, able to use autogas, folding or easily removable wings for transportation. The airplane must be able to take off and land within reasonable...
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    Inquiry: designs suitable for takeoff at 13000ft

    What do you guys think of BD-4 for this mission requirement? Let's say,a turbocharged 200hp or auto conversion V6 powered BD-4 flying with two people on board and minimum fuel so that the takeoff gross weight is limited to 1700lbs or less? Can such BD-4 take off and climb decently at 13000 feet?
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    Inquiry: designs suitable for takeoff at 13000ft

    can't believe it's been a year since I posted this thread. My friends and I are still soaked up with this idea and Yes, we want to fly in Tibetan area and to bring up kids there to let them appreciate the landscape of their hometown from an angle they've never dream of. After on-site research it...
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    Look for airplane design: Take off@12000 feet

    Bangda airport in eastern Tibet, which lies 15,548 feet above sea level, is the highest airport in the world, if that's what you were asking. If your skiplane is capable enough, there're plenty of flat and straight open wild fields as landing strip above this height.
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    Look for airplane design: Take off@12000 feet

    Yes, Tibet is right next to Nepal.I think it's OK to have a CH701 type STOl airplane equipped with turbo engine for now, restricted to relatively calm weather condition of course.
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    Look for airplane design: Take off@12000 feet

    thanks for the reply. Now it seems turbine is the way to go, but there's no way I can afford that for now. The reason for folding or removable wings is that private flying is still very restricted in China and we have to trailer the airplane into the area and take the "fly and go" approach.
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