无动力三角翼能飞多远? 没风能飞吗?最高能飞多高?

能飞多远要看风力`没有风就是靠空气动力滑行`无风滑行距离取决于你的起飞高度`一般起飞的高度都比较高`无风的情况不可能出现`只有相对滑行到较低的高度才可能完全无风`然后与其距离相关的就是温度`湿度`等情况了`理论上最高不会超过平流层`因为平流层是相对无风的`没有上升气流继续往上托你了``距离地面约10公里~50公里的高度`但是由于器械和人体所限`一般是到不了这个高度的`因为高空的强风和低温`如果是飞机带飞的话就会相对较高一点`不过不是自己飞上去的`只不过从一个高起点缓慢滑行至地面而已``关键问题还是风向和暖风的上升气流`才会让你上升而不是往下滑``

Hang Gliding FAQ（悬挂滑翔翼最常见问题和回答）
How do you get in the air? （如何爬升到空中）
A hang glider can be foot launched from a hill or cliff, or towed behind an ultralight airplane, truck or boat. They can also be winch launched.
How high can you go? （能飞多高？）
Most flights remain below 1350 - 1800 meters (4000 - 6,000 feet). In the USA the legal, regulatory limitation is 17,999 ft above mean sea level (MSL). Above about 3,000 - 4000 meters (9,800 - 13,000 feet) you will need oxygen.
How long can you stay up? （能在空中飞行多长时间？）
An intermediate pilot can soar for several hours. Hang Gliders remain aloft by using ridge lift (rising air deflected by a mountain) or thermals (rising air created by the sun warming the earth). An advanced pilot may choose to fly cross-country (XC) and fly many miles to "land out."
Cross-country (XC) records are often hundreds of miles, and the world record for soaring is over 24 hours!