For years their use has been limited to the rich and famous or wealthy James Bond enthusiasts.
But walking on water with a jetpack is now one step closer thanks to a device which uses water from the ocean to propel users across the waves.
The £60,000 Jetlev uses jet stream technology to propel fliers up to 30ft in the air by sucking up water in a huge hose from the ocean.
And while the £150 cost for a day using the Jetlev jetpack will still be too excessive for many, the lowered price has at least made jetpack technology available to more than just the incredibly wealthy.
Jetlev trainer Dean O'Malley said: "This is actually fairly light, it's about 9kg, so it doesn't take much pressure to get you into the air."
"The key to the whole thing is, they off-loaded all the weight from the pack into the actual pod unit."
The Jetlev R200 has a harness that straps the user into the jetpack's frame, two handles for steering and stability, a throttle for speed control, and two water jets that forcefully propel out streams of water that is pumped in through a hose.
It is now available for hire at Lake Havasu, Arizona, Nevada, Hawaii and Florida, in the US as well as Germany and Singapore.




据英国《每日邮报》11月16日报道，多年以来，在詹姆斯-邦德的狂热粉丝群中，只有有钱人和富豪才能享受电影中詹姆斯-邦德的特殊武器。
但是，利用飞行背包在水面上行走让人们很快就能体验一把当"詹姆斯-邦德"的感觉。这是通过一款利用海水来推进使用者在水面上行走的设备来实现的。
这款价格达6万英镑的喷射悬浮装置利用激流喷射技术，用一个巨大的软管吸收海水，能将使用者推向30英尺的高空。

然而每天150英镑的租金对于许多人来说还是太过奢侈，但这样的价格其实很低了，至少它让喷射式背包技术变得普及，而不再只是有钱人的享受。

水面行走训练师迪恩-奥马里说："这款背包实际上很轻的，重量大约9千克。所以不需要费多大劲就能让你实现腾空。"
整个过程的关键就是他们得摆脱所有来自背包内的重量。

R200喷射悬浮装置配有一条能固定使用者的肩带、两只能控制方向和稳定性的手柄、一个用来控制速度的节流阀以及两个水流喷射器，能将软管吸收上来的海水强有力的喷射出去。

目前在提供租用的地方有美国的亚利桑那州的哈瓦苏湖市、内华达州、夏威夷以及佛罗里达州。在德国和新加坡同样提供租用服务。

• wealthy [´welθi] a.富有的；丰富的 (初中英语单词)
• device [di´vais] n.装置；器具；策略 (初中英语单词)
• stream [stri:m] n.河 vi.流出；飘扬 (初中英语单词)
• available [ə´veiləbəl] a.可用的；有效的 (初中英语单词)
• actually [´æktʃuəli] ad.事实上；实际上 (初中英语单词)
• pressure [´preʃə] n.压榨 vt.对...施压力 (初中英语单词)
• actual [´æktʃuəl] a.现实的；实际的 (初中英语单词)
• harness [´hɑ:nis] vt.上马具 n.马具 (初中英语单词)
• florida [´flɔridə] n.佛罗里达 (初中英语单词)
• limited [´limitid] a.有限(制)的 (高中英语单词)
• excessive [ik´sesiv] a.过分的；极端的 (高中英语单词)
• trainer [´treinə] n.训练员，教(练)员 (高中英语单词)
• arizona [,æri´zəunə] n.亚利桑那(州) (高中英语单词)
• nevada [ne´vɑ:də] n.内华达 (高中英语单词)
• stability [stə´biliti] n.稳定；巩固；坚定 (英语四级单词)
• propel [prə´pel] vt.推进；推动 (英语六级单词)
• incredibly [in´kredəbli] ad.难以置信地 (英语六级单词)
• hawaii [hɑ:´waii:] n.夏威夷(州) (英语六级单词)