h a l f b a k e r yI like this idea, only I think it should be run by the government.
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,
|
|
|
Please log in.
Before you can vote, you need to register.
Please log in or create an account.
|
A rocket's engine bell has much to do with its efficiency. At high air pressure a small bell is needed to push the gas straight back. At lower pressures you need a large one.
The idea is an attachment to the engine bell. This metal ring would shrink the lower portion of the bell, constraining
the exhaust. At an appropriate altitude it would ablate, melt, blow up, or otherwise detach leaving a larger engine bell appropriate for the lower pressure.
[link]
|
| |