Dorsal position: the parachute is reasonably well protected from mishaps at launch and the deployment handle is quite visible on the shoulder, but the connecting strap needs to be quite long.

• 背置备份伞：次种方式的安装可以避免起飞时候的误开，而且手柄位置在肩部，很容易看到；其问题是手柄到备份伞的距离太远，需要很长的连接带。