# How would a jetpack work?

**URL:** <https://boards.straightdope.com/t/how-would-a-jetpack-work/947737>\
**Category:** Factual Questions\
**Created:** [August 1, 2021, 1:02am UTC](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737 "2021-08-01T01:02:47Z")\
**Posts on this page:** 6\
**Page:** 3

<div class="post-metadata">

**Author:** ![mordecaiB](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mordecaib/32/7725_2.png) [@mordecaiB](https://boards.straightdope.com/u/mordecaiB)\
**Post date:** [August 3, 2021, 9:33pm UTC](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737/41 "2021-08-03T21:33:50Z")

</div>

> [@Mangetout](#):
>
> Not exactly a jetpack, but with a flight time of more than 40 minutes, this seemed like both a fun idea…
> 
> [Williams X-Jet - Wikipedia](https://en.wikipedia.org/wiki/Williams_X-Jet)

Man, that looks a lot like the flying platforms on the Jonny Quest Cartoons.

[![](http://1.bp.blogspot.com/-C_ua9XL9Xk4/UYFoGaQhDDI/AAAAAAAACEA/O_K27acaHwY/s1600/Jonny+Quest+Jack+Armstrong.jpg) ](http://1.bp.blogspot.com/-C_ua9XL9Xk4/UYFoGaQhDDI/AAAAAAAACEA/O_K27acaHwY/s1600/Jonny+Quest+Jack+Armstrong.jpg)

---

<div class="post-metadata">

**Author:** ![carnivorousplant](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/carnivorousplant/32/3563_2.png) [@carnivorousplant](https://boards.straightdope.com/u/carnivorousplant)\
**Post date:** [August 5, 2021, 1:31am UTC](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737/42 "2021-08-05T01:31:51Z")

</div>

How did he carry enough fuel?

---

<div class="post-metadata">

**Author:** ![DPRK](https://avatars.discourse-cdn.com/v4/letter/d/4491bb/32.png) [@DPRK](https://boards.straightdope.com/u/DPRK)\
**Post date:** [August 5, 2021, 1:34am UTC](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737/43 "2021-08-05T01:34:42Z")

</div>

IIRC he didn’t: he refuelled in the middle of the Channel. Or has he made some improvements since then?

---

<div class="post-metadata">

**Author:** ![carnivorousplant](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/carnivorousplant/32/3563_2.png) [@carnivorousplant](https://boards.straightdope.com/u/carnivorousplant)\
**Post date:** [August 5, 2021, 1:35am UTC](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737/44 "2021-08-05T01:35:34Z")

</div>

> [@DPRK](#):
>
> I keep thinking, I would not want to be taking (possibly incendiary) enemy fire while strapped to tanks of jet fuel. Or riddled with large-calibre AP bullets in any case.

I wouldn’t want to take enemy fire in a rubber boat, or climbing up the side of a ship.

---

<div class="post-metadata">

**Author:** ![Darren\_Garrison](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/darren_garrison/32/92_2.png) [@Darren\_Garrison](https://boards.straightdope.com/u/Darren_Garrison)\
**Post date:** [August 5, 2021, 4:53am UTC](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737/45 "2021-08-05T04:53:15Z")

</div>

I wouldn’t want to take enemy fire on a boat.  
I wouldn’t want to take enemy fire with a goat.  
I wouldn’t want to take enemy fire in the rain.  
I wouldn’t want to take enemy fire on a train.  
Not in the dark! Not in a tree!  
Not in a car! You let me be!  
I wouldn’t want to take enemy fire in a box.  
I wouldn’t want to take enemy fire with a fox.  
I wouldn’t want to take enemy fire in a house.  
I wouldn’t want to take enemy fire with a mouse.  
I wouldn’t want to take enemy fire here or there.  
I wouldn’t want to take enemy fire anywhere!

---

<div class="post-metadata">

**Author:** ![carnivorousplant](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/carnivorousplant/32/3563_2.png) [@carnivorousplant](https://boards.straightdope.com/u/carnivorousplant)\
**Post date:** [August 5, 2021, 10:32am UTC](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737/46 "2021-08-05T10:32:42Z")

</div>

Well said, Sir.

[Previous page](https://boards.straightdope.com/t/how-would-a-jetpack-work/947737.md?page=2)
