Aug 16

Space Rocket History #266 – Apollo 13 – “Houston, we’ve had a problem.”

Swigert: I believe we’ve had a problem here!

CapComm: This is Houston. Say again, please.

Lovell: Houston, we’ve had a problem.

Section of Apollo CM main panel. H2 and O2 fan switches circled.

Section of Apollo CM Control panel. Main Bus A and B Undervolt lights circled.

Section of Apollo CM Control Panel. Cryogenic Tank Level indicators circled.

Aug 09

Space Rocket History #265 – Apollo 13 – Translunar Coast – The Calm Before the Storm

As Lovell prepared for the thruster adjustments, Haise finished closing down the LEM and drifted through the tunnel back toward the command module and Swigert threw the switch to stir all 4 cryogenic tanks.

Mercury, Gemini, and Apollo spacecraft comparison

Apollo Service Module diagram

Image from the unaired Apollo 13 TV show just before the problem occurred