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PRACTICAL IDEAS

On this page(s) we like to put constructive solutions and/or alternatives to Mars-one's ideas. This is a page for and from sympathizers of Mars-once.
When you have an idea or suggestion that may be helpful and/or interesting, please don't hesitate and send an email to practical ideas
.  
Preferably well documented and signed by your real name. Anonymous or fictitious names we do not allow on this site. It should always be possible we can ask where you obtained the information from.  

Thank you in advance,
The Mars once team.


For example:           
Descent to Mars without heat shield.

We have all seen animated films of how a capsule descents to a planet. It is done with an enormous exchange of heat once the capsule enters the atmosphere due to the speed the capsule has.
However, it is my strong opinion such a heat exchange won't be necessary once you decide not to descent at a high speed. I believe an almost complete rocket may be able to descent on Mars without the use of a heat shield. After all when the rocked left the Earth atmosphere a heat shield wasn't needed. More or less reversing this same process for the descent to Mars where much less energy is needed for this process, because the red planet pulls the rocket to its surface with a 1/3 force of Earth. Moreover a descent costs anyhow less energy than a launch. Doing a descent the way I'll describe below gives the opportunity bringing a ten times more voluminous payload than the ordinary capsule heat shield way. Moreover a complete rocket engine and its tanks descent to Mars which can be used (when filled with fuel) sending a satellite, material or even people into a Mars orbit. I guess it will take two or three launches from Earth being able to transport a tenfold of material. One or two launches transporting the payload and one transporting the 'brake' rocket you need after entering Mars orbit. For being able to bring for example a complete drilling tower, two rovers and a Jimmy-hut all at once.        

The overall idea:

-A- In this situation the rocket and its huge payload entered an orbit around the planet Mars. Going in the same direction as the rotation of the planet the rocket fixes itself above a position 'P' located on the red planet. Blue symbolizes the thin atmosphere around Mars. The rocket turns its engine (exhaust) into the opposite direction enabling to brake its speed. Forces acting on the rocket are the force of its speed Fs and the force of gravitation Fg.
-B- By metered braking, the rocket approaches the planet slowly. The force of gravitation increases while the force of speed degreases. All the closer the rocket approaches the planet Fs degreases while Fg increases.       
-C- While further metered braking here the critical point approaches where the rocked enters the atmosphere. The gravitation force pulls the rocket to the Martian surface too strong. When the rocket does not supply a counter force soon the rocket will burn in the atmosphere.


-D- Close to entering the Martian atmosphere the rocket tilts and brakes its rapid fall. The rocket ejects a brake power slightly less than the result of the forces Fs and Fg.
-E- Entering Martian atmosphere the rocket supplies a final metered braking power to stabilize.
-F- Rocket engine and payload split and descent through parachutes on their own. The long payload horizontally and the rocket engine vertically while it extends its 'feet' that need to stabilize it on Martian surface.

Here above I hope to have given a just example which according to me is theoretically true. I wonder why this has never been done before. It is so much cheaper and you gain a rocket engine which, once filled with fuel, can be used for launching a satellite or yourself in orbit.

Jim Hasenaar

 
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