Re: MMU Question
From: Jorge R. Frank (jrfrank_at_ibm-pc.borg)
Date: 03/29/05
- Next message: Joe D.: "Re: Are Solid Boosters Safe?"
- Previous message: Nick Hull: "Re: No New Shuttle Flight Unless Rescue Mission Can Be Guaranteed"
- In reply to: Joe D.: "Re: MMU Question"
- Next in thread: Henry Spencer: "Re: MMU Question"
- Messages sorted by: [ date ] [ thread ]
Date: Tue, 29 Mar 2005 08:02:43 -0600
"Joe D." <joe@nospam.invalid> wrote in
news:wi61e.90558$%Y4.19280@bignews6.bellsouth.net:
> "Keith F. Lynch" <kfl@KeithLynch.net> wrote in message
> news:d22mkc$rlj$1@panix1.panix.com...
>>
>> What if the MMU gets stuck in the on position? Does the shuttle have
>> enough delta-V to catch him after the MMU gas is all expended? Could
>> it cause reentry? How much spin could a malfunctioning MMU put on an
>> astronaut, and what could be done if that happens? Thanks.
>
> MMU had about 80 ft/sec total delta V, so even if 100% was expended
> in a linear runaway the orbiter should have enough OMS delta V to
> retrieve. In general OMS delta V is about 20x that, but it varies
> based on propellant load and whether any is expended on ascent.
The OMS delta-V capability is actually around 1000 fps, or about 12x that
of the MMU.
-- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM.
- Next message: Joe D.: "Re: Are Solid Boosters Safe?"
- Previous message: Nick Hull: "Re: No New Shuttle Flight Unless Rescue Mission Can Be Guaranteed"
- In reply to: Joe D.: "Re: MMU Question"
- Next in thread: Henry Spencer: "Re: MMU Question"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
