设为首页收藏本站

科技网

[信息] 第一个人动力直升机

[复制链接]
发表于 2007-7-12 21:23:09 | 显示全部楼层 |阅读模式
第一个人动力直升机
第一个人动力直升机建造于1981年结束于19**。直升机是由二个旋翼,尖端由驱动装置组成。
The First Certified Human Powered hover.
The Leonardo da Vinci series of helicopters were built at CALPOLY San Luis Obispo starting in 1981 and ending in 1989. They were all 2 bladed, tip driven machines.
Leonardo I was a 50 foot radius rotor with a 30 foot per second tip speed and large cord airfoils.
Leonardo II had a radius of 50 and 70 feet and was designed for a 50 foot per minute tip speed.
Leonardo III was a 50 foot radius machine with a 50 foot per minute tip speed. It was much refined and flew for record in Dec. of 1989.

image001.jpg


image002.jpg


image003.jpg


image004.jpg

发表于 2015-11-11 09:53:44 | 显示全部楼层
嘘,低调。
您需要登录后才可以回帖 登录 | 注册

本版积分规则

辽公网安备 21100402204006号|科技网 ( 辽ICP备07501385号-1   

GMT+8, 2019-7-18 09:40

Powered by tech-domain X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表