h a l f b a k e r yRenovating the wheel
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
Build a rocket shaped like a huge bullet, place an aerospike engine at the back of the rocket with an air augmenter attached, then at the nose of the rocket place small vents to vent hydrogen gas uniformly around the body of the rocket as it flies. Hydrogen is provided by the turbo pumps after they
have extracted the usefull heat energy. venting is done via the venturi principle and due to the low pressure generated by doing this the turbos run more efficiently.
This has many benefits: one reduced drag, two the hydrogen will be scooped up by the air augmenter and burned as additional fuel, three it can take a portion of its oxidizer from the atmosphere and so reduce launch mass, four eliminates base drag and five air augmenter doubles as a supersonic air brake when not being powered such as during reentry.
Additionally the skin of the rocket can be made like cardboard with the channels running lenghtwise and filled with water, a small tank provides additional storage and is placed between the passenger/payload and the fuel tanks effectively doubling as a blast shield should the rocket fail, as the rocket orbits the earth the water in the skin of the craft provides micrometeor protection to the touronauts and or payload as well as some radiation shielding. Upon reentering the atmosphere the water in the skin will boil and the steam will be vented out the nose vents providing an insulating barrier between the rocket and the reentry plasma and carrying away additional heat.
The skin will also be plated in gold for bling and thermal reasons.
Please log in.
If you're not logged in,
you can see what this page
looks like, but you will
not be able to add anything.
Destination URL.
E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)
|
| |
You spilled coffee on your keyboard, didn't you. I can tell, because your period key works only about a third of the time, and sometimes it makes commas. Also, the shift key seems a little flakey. |
|
| |
Anyway, '+' for the rocket shaped like a huge bullet place. |
|
| |
Ok, I think I got most of the coffee. |
|
| |
Less drag because of the hydrogen at the boundary layer? We're in pretty turbulent conditons at rocket speed. |
|
| |
Turbulent at rocket speed? rocket speed is virtually all supersonic, only at transonic speeds do you encounter a lot of turbulence once you are going supersonic the flow smoothes right out unless something ahead of you is creating turbulence. |
|
| |
[texticle] having just possibly made an ass out of myself to one who works with rockets (your post seems to indicate that ) or possibly an areodynamic expert, I must ask the question are you? <crosses fingers-hopes not> |
|
| |
/I must ask the question are you?/ |
|
| |
previous research was done by NASA involving applying a negative pressure to the wings to suck in the inevitable turbulence caused by friction... haven't been able to find a link for positive pressure and fuselage though, yet. |
|
| |
You cowardly boners. Why don't you post why it is deserving of a fishbone? |
|
| |
At supersonic speed the air augmenter will have to be HUGE or attached to some kind of appendage to actually get any air unless it is at the front of the rocket. The engines on the SR-71 are just outside the shockwave so I wouldn't expect you could build a reasonable scoop for an aero spike that way. You could put the scoop at the front, but that ruins the whole burn the extra H2 thing. |
|
| |
I like that crosswinds will cause thrust in a compensating direction. |
|
| |