Apollo 11 landing from PDI to Touchdown
Why Space Exploration Stack Exchange recommends it
Space Exploration Stack Exchange users link it as a ready-made video of the Apollo 11 powered descent, useful for questions about the descent trajectory and for seeing dust blown by the LM.
Recommended by 1 people across 1 different months, 2018 to 2023.
What it is
An annotated 15-minute portrayal of the Apollo 11 lunar landing, from powered descent initiation to touchdown, with captions explaining each stage of the descent. It is produced by the Apollo Flight Journal team (David Woods) as support for the Apollo 11 Flight and Surface Journals.
What people said
Recommends Dave Gremlin · 2019-01 · Space Exploration Stack Exchange · on “Looking for Apollo 11 powered descent video”
There is a fifteen minute video of the descent from lunar orbit to the surface here: Apollo 11 landing from PDI to Touchdown [this video] And a full list of the Apollo 11 movie footage at the Apollo 11 Flight Journal [LINK] site
Cites Nick S · 2018-11 · Space Exploration Stack Exchange · on “How different was the Apollo LM descent trajectory from the most fuel-efficient?”
In most diagrams of the Apollo Lunar Module descent profile (example at the start of this video [this video] ), it looks like the LM turns over and points some of its thrust downward relatively early in the process. I always wondered exactly how much delta-V they expend downward (how long at what angles and throttle levels), and what that meant for their gravity losses [LINK] . I'm sure a fuel-ideal trajectory wouldn't have been practical for many reasons (hard to do a suicide burn when you're not sure if it ends on top of a boulder). But I'm just wondering how much fuel they sacrificed for those considerations?
Cites Fred · 2023-08 · Space Exploration Stack Exchange · on “Why didn’t Apollo 11 blown away the dust as we can see only rocky surface in the Chandrayaan-3 landed picture?”
From 13:30 on this video [this video] of the Apollo 11 landing dust can be seen to be blown away by the LEM as it is landing. At 13:50 the comment is made by Aldrin, "picking up some dust".