Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86

Warning: Undefined variable $net_nums in D:\wwwroot\firstbook_q2877h\web\inc\gen.php on line 86
蝶与谍_我是曹宁_回答1940年11月没有直升机之说_格格党_笔趣阁
笔趣阁 - 玄幻小说 - 蝶与谍在线阅读 - 回答1940年11月没有直升机之说

回答1940年11月没有直升机之说

    折叠试飞成功

    1938年,年轻的德国姑娘汉纳赖奇驾驶一架双旋翼直升机在柏林体育场进行了一次完美的飞行表演。这架直升机被称为是世界上第一种试飞成功的直升机。

    1936年,德国福克公司在对早期直升机进行多方面改进之后,公开展示了自己制造的FW-61直升机。动力装置是一台功率140马力的活塞发动机。该机时速100~120公里,航程200公里,起飞重量953千克。

    法国人和德国人研制的直升机虽然成功,但却很不实际,没有步入现代直升机的行列。

    折叠真正的直升机

    1939年春,美国的伊戈尔·西科斯基完成了VS-300直升机的全部设计工作,同年夏天制造出一架原型机。他成功地让世界上第一架真正的直升机--VS-300升空了。这是一架单旋翼带尾桨式直升机,装有三片桨叶的旋翼,旋翼直径8.5米,尾部装有两片桨叶的尾桨。其机身为钢管焊接结构,由V型皮带和齿轮组成传动装置。起落架为后三点式,驾驶员座舱为全开放式。动力装置是一台四气缸、75马力的气冷式发动机。这种单旋翼带尾桨直升机构型成为现在最常见的直升机构型。[12]

    自首次系留飞行以来,西科斯基不断对VS-300进行改进,逐步加大发动机的功率。1940年5月13日,VS-300进行了首次自由飞行,当时安装了90马力的富兰克林发动机。