如下动力辅助的悬挂滑翔翼常见问题回答，是Hidden Mountain 给出的，供参考 What is a power harness?  什么是动力座袋？ Simply put, a power harness is a hang gliding harness with an engine attached for the purpose of self launching Back to top

·  Is hang gliding experience required?  悬挂滑翔翼的经验需要吗？ Yes. There are techniques for launching, flying and landing hang gliders that are unique. While experience with other forms of flight will be helpful, you will need to be proficient at launching, landing and flying a hang glider before you attept to fly a powered harness of any kind. Back to top

·  What are the components of a power harness that differ from unpowered hang gliding?             动力座袋与非动力座袋的有差异的成分是什么？ The power harness is essentially a conventional hang gliding harness with additional components required to support self lauched flight. In addition to the features found in a conventional unpowered harness, the following items will be found: Frame 框架 Rigid aluminum tubes run along each side of the harness starting at about elbow level and running past the boot of the harness where the two tubes join. These tubes serve as the hard mounting point for the engine and other components. Fuel System  燃油系统 The fuel system includes a fuel tank, quick disconnect and priming bulb. The fuel tank is mounted o n o ne of the downtubes near the control bar apex and is fastened and safetied to the downtube to prevent accidental separation from the glider Power Unit The engine is attached to the frame just behind the harness boot. The reduction drives, belts, batteries, starter, prop shaft and propeller are also in this area of the harness. Controls The controls include an o n/off switch (aka kill switch), starter button and mouth throttle. Instruments Some harness models include instruments for head temperature, exhaust gas temperature, rpm and fuel level. Landing Skids Landing skids are attached to the frame and help to prevent propeller strikes during takeoff and landing. They also support the weight of the engine while ground handling. o n most harness models, the skids can be retracted after takeoff. Back to top

·  What kind of fuel does a power harness use? Most models use two stroke gasoline engines that burn unleaded gasoline with two stroke oil premix. Back to top

·  Isn't it messy dealing with premix fuel? Some care must be given when handling fuels.  o ne should not allow fuel to be in contact with the wing or the fabric and/or plastic harness parts.  The fuel tank has been designed to allow connection and disconnection with a simple and clean quick connect fitting.  Using proper care and procedure, it is possible to avoid contact between fuel and wing or harness.  While a gasoline engine is required in order to produce the power required for takeoff and landing, much care and thought has gone into the design so that your equipment will stay dry and clean. Back to top

·  How long will the fuel last? Fuel duration is based o n fuel capacity and burn rate.  Fuel capacity is based o n the size of the fuel tank and is limited based o n FAA regulations (see FAR part 103) for ultralight vehicles.  Burn rate will be determined (mainly) by  engine time and power setting.  Between 1 and 2 hours is typical per standard tank of fuel.

[ 本帖最后由 航模钢琴 于 2008-9-23 09:03 编辑 ]

资料来源：
http://www.xproject.phpwebhostin ... aq=yes&id_cat=3

How does the power harness affect the flight characteristics of the glider?

Due to the extra components (engine, drives, shaft, propeller, battery), the power harness will be heavier than a comparable unpowered harness.  The higher weight will translate into higher speeds at all angles of attack.  Higher stall speed is the main concern.  The pilot should also consult the glider manual paying special attention to maximum load.

The weight in a power harness is distributed further aft.  When the power harness pilot clips into the glider, he will notice that the basetube will be further aft than in his conventional unpowered harness.  This is due to the aft distribution of weight in the power harness.  The pilot must understand that the displacement of the basetube to a further aft position will make it possible for the pilot to push the basetub further forward relative to trim.  As all hang glider pilots know, pushing out past the critical angle of attack will cause the glider to stall.  A pilot must be aware that with a power harness, the bar position (relative to the pilot) will be further aft and so the pilot should not fly by placing the bar in its normal position as experienced in an unpowered configuration but, rather, he should fly proper airspeed for the load regardless of bar position.

Other than the high speeds and changes to bar position, the glider will fly similarly to an unpowered configuration. Because the bar is further aft, may need to expend extra effort when in takeoff and landing mode to place his arms,hands behind the downtubes. By the same token, flare authority is enhanced by the aft bar position.

In flight, other than the bar position issue discussed above, the pilot will notice little difference in handling from an unpowered configuration.

What is the procedure for takeoff?



Again, a takeoff in a power harness is similar in most respects to an unpowered takeoff. Because of the weight of the harness, it is recommended that the harness be clipped into the glider before the pilot enters the harness.

Most pilots connect the fuel tank to the downtube apex before clipping the harness into the glider. From there the process looks like this.

- Connect fuel line to tank with quick disconnect
- Use priming bulb and purge valve to evacuate all air from the fuel line
- Complete walk-around pre-flight check of glider
- Complete walk-around pre-flight check of harness
- Clear area
- Connect spark plug
- Ignition on
- Depress started and rev engine to moderate RPM for 30 seconds
- Turn off engine
- Donn harness
- Stage glider
- Clear area
- Start engine
- Use mouth throttle to rev to full power
- Take walking, jogging, stiding steps to lauch airspeed
- Let glider lift you from ground
- Fly in ground effect for 3-5 seconds to build airspeed
- Pitch to safe climbing airspeed

What is the procedure for landing?


Landing with a power harness is no more difficult (and some say less difficult) than with an unpowered harness.  However, there are additional management items that need to be addressed.  First, for an unpowered landing, the engine should be properly shutdown.  You must also ensure that the landing skids are in the 'down and locked' position.  As with an unpowered harness, you should make sure that your harness zipper is open and that your legs are free and clear of any entanglements.  From this point, the landing is conventional in most respects to an unpowered landing.

Does the glider turn or oscillate when under power?

While 'left turning tendency' is common to some forms of powered aviation, we have not experienced this phenomenon with the power harness.   Oscillations have not been experienced by test pilots.

你能否把主要的内容给翻译一下，能否提供一些建议，动力辅助悬挂滑翔翼飞行性能优缺点？翼面主要是那些厂家，国内代理价格有吗，如何厂家可以直接购买？谢谢

楼上的：
1：用金山词霸点击看吧，不难的内容，不能什么都等别人做好。
2：动力辅助悬挂滑翔翼飞行性能优点是对起飞降落场地要求小，造价低（相对动力三角翼和超轻型飞机）；相对动力伞而言它的运输和存储比较麻烦；另外发动机的安装和推力角度的确定是个难点（假设你只购买了悬挂滑翔翼，想自己做一个发动机支架）
3：厂家我已经在论坛里罗列出啦，你在看看
4：国内没有代理，你若想购买，可以直接和厂家email联系，国外的购买流程很简单，你交钱，商家直接把货送你家里。

[ 本帖最后由 航模钢琴 于 2008-10-20 14:47 编辑 ]

航模钢琴,你怎么和那位山东的先生过不去呢？那位看来还是有些实力和技术能力的，我觉得他能够把爱好和事业结合起来，不管是对我们飞行爱好者还还是国内的运动飞行得发展来说都是好事，而且对国内通用航空也可能有促进作用，至于脾气或者经营方式，那是他自己的事情，我们还是包容为好，我看这个地方的朋友们都是素质比较高的，别让外边的人看我们的笑话，不过该发表意见就发表，注意口气就是了。
我看过你好多的帖子，大部分都是英文的，读起来实在费尽，不过最近我希了糊涂但还是仔细看了相关的资料，对我的帮助很大。这几天我正在考虑起飞的事，辅助动力滑翔是否一定要有滑翔翼的基础，我没有玩过，直接动力飞行。。。。。，？还有，要直接国外买辅助动力滑翔套材，老兄英文好，帮我们仔细研究一下，分析分析，推荐一款性价比高的。不胜感谢。

今天遇到了，荣幸，不需要通过代理公司吗？报关报税等等厂家都可以做好了？