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Did Apollo really travel sideways?



 
 
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  #11  
Old June 9th 07, 02:33 PM posted to sci.space.history
BradGuth
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Posts: 21,544
Default Did Apollo really travel sideways?

On Jun 8, 5:32 am, mike flugennock wrote:
The "flying sideways" you saw is likely a depiction of the spacecraft
using "Passive Thermal Control" or "barbecue mode", in which the
spacecraft is traveling sideways relative to the direction of travel and
to the sun, and rolling at a very slow rate, in order to keep the sunlit
areas from getting too hot, and the shadowed areas from getting too cold.


Once in orbit about the moon is getting yourself double IR/FIR at
least half of the time, regardless of whatever direction they are
pointed, as well as getting their DNA gamma and hard-Xray traumatised
at the very same time.

There's even a little earthshine/planetshine IR to deal with.

Rather odd that Venus was never once visible, especially since Venus
shows up in most any solar system simulator, plain as day and
otherwise much brighter than day.
-
Brad Guth
-
"whoever controls the past, controls the future" / George Orwell

  #12  
Old June 10th 07, 11:43 PM posted to sci.space.history
J Larson
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Posts: 1
Default Did Apollo really travel sideways?

On Sat, 09 Jun 2007 13:33:04 -0000, BradGuth
wrote:

On Jun 8, 5:32 am, mike flugennock wrote:
The "flying sideways" you saw is likely a depiction of the spacecraft
using "Passive Thermal Control" or "barbecue mode", in which the
spacecraft is traveling sideways relative to the direction of travel and
to the sun, and rolling at a very slow rate, in order to keep the sunlit
areas from getting too hot, and the shadowed areas from getting too cold.


Once in orbit about the moon is getting yourself double IR/FIR at
least half of the time, regardless of whatever direction they are
pointed, as well as getting their DNA gamma and hard-Xray traumatised
at the very same time.

There's even a little earthshine/planetshine IR to deal with.

Rather odd that Venus was never once visible, especially since Venus
shows up in most any solar system

************ simulator ************
, plain as day and
otherwise much brighter than day.
-
Brad Guth

Care to guess the magic word?

  #13  
Old April 4th 13, 07:15 PM
Shelley Shelley is offline
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First recorded activity by SpaceBanter: Apr 2013
Posts: 1
Default

Quote:
Originally Posted by View Post
I just watched Man Moment Machine featuring Apollo 13. In most of the
animations, the LM/CSM was traveling to the side. Is this right?
I always assumed it traveled straight ahead with that big CSM engine
nozzle to the rear.
I wonder if it was to enable maneuvering, like LM extraction, which would be a bit hard to do with nozzle at the rear. With the spacecraft in a sideways orientation, it could carry out its maneuvers and proceed to the moon at the same time and speed without having to stop, turn round, get the LM, turn round and fire up again.
 




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