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Pre-launch Vacuum-Causing Shuttle

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As any rocket will tell you, launching to achieve escape velocity to get from the ground to up, is hard. Gravity doesn't want this to happen, for one. However, another lesser problem but problem nevertheless is that there's an awful lot of air in the way.

Rockets tend to be penis shaped primarily because it is funny, but also because of aerodynamics and the minimising of parasite drag.

What if there were a preceding 'launch' (not necessarily from ground level but from the mid-air above the rocket), sending a small shuttle skyrocketing upward, whilst doing something to leave behind a partially envacuumed tunnel in the air. This would remain for just long enough to pave the way for the trajectory for the real rocket to 'fall into' in some degree.

As an added bonus, it could make the vacuum tunnel coloured on the way up, for entertainment value, and also to visually check if the rocket is following the trajectory. Making it intermittently coloured would cause a dashed line to appear in the sky.

Stopping the vacuum tunnel from being filled in immediately is, I consider, an entirely separate engineering problem and would have to be solved by someone else featuring some other idea, building on the shoulders of this one.

Ian Tindale, Mar 31 2017

Peaple Shooter The_20Denver_20Inte..._20Peaple_20Shooter
An old Idea that uses acceleration in a vacuum. [Vernon, Mar 31 2017]

Aerospike https://en.wikipedi...-reducing_aerospike
Relevant [mitxela, Apr 01 2017]

[link]






       So you want an idea to support the vacuum of this one?
wjt, Mar 31 2017
  

       How about building an airtight wall around the launch trajectory and then pumping all the air out?
Wrongfellow, Mar 31 2017
  

       Easiest method would be to simply seal the rocket within a vacuum within a container, and boost the can into orbit.
FlyingToaster, Mar 31 2017
  

       Someone posted a link here once to a new jet that Russia was developing which was akin to this idea.
It focusses microwaves to super heat the air in front of an aircraft or missile creating a partial vacuum which reduces almost all drag on the body using supercavitation of the air itself.
  

       Good luck finding it anymore though. In fact Google Supercavitation Aircraft if you want a chuckle.   

       Supercaitation expe allidocious indeed.   

       so you what to make a space elevator length tube to have a vacuum so you can launch rockets easier? if we could make the former we are not in need of the later.
dev45, Mar 31 2017
  

       //within a vacuum within a container   

       Hmm, surely it would be best to have a sealed vacuum container inside the ship, and then release it through nozzle on top?   

       I can't actually work out if an airtight launch tube and a small black hole mounted on the space-ship would lift the ship, or just drag all the air down. Any ideas?
not_morrison_rm, Mar 31 2017
  

       [not Morrison rm] one question How do you keep the black hole for consuming the ship it's "attached" to?   

       And given relative mass the air would come to the black home not the back hole to the air.
dev45, Mar 31 2017
  

       100 km trail of adapted detonating cord.   

       Some sort of energy projection or motion change from the rocket to change oncoming air density, seems to me more sensible.
wjt, Apr 01 2017
  

       No, the // 100 km trail of adapted detonating cord. // sounds just right to us ... MUHWHAHAHAHAHA !
8th of 7, Apr 01 2017
  

       That aerospike resembles an aeropress. I wonder if it could be used to also make coffee on the way up?
Ian Tindale, Apr 01 2017
  

       Taking a cue from Geese; V   

       you could launch a flock of these rockets to optimize aerodynamics.   

       actually I thought of a drone truck/car variation. Have electrically powered drones fly in front of a truck. they could even have tethers to the trucks electricity. They would always precede the truck or car to optimize the aerodynamics.   

       Slight hints of Anakin Skywalker.
beanangel, Apr 01 2017
  

       // actually I thought of a drone truck/car variation. Have electrically powered drones fly in front of a truck. they could even have tethers to the trucks electricity. They would always precede the truck or car to optimize the aerodynamics. //   

       Didn't you post that a few months ago?
notexactly, Apr 01 2017
  
      
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