AUDIO: Listen to Apollo F-1 and J-2 veterans talk rockets

Last week Paul Coffman and Bob Biggs, former Rocketdyne engineers and members of the development teams for the J-2 and F-1 engines, respectively,spoke to Flightglobal through a teleconference organised by Pratt & Whitney Rocketdyne

Both are now consultants on NASA's Ares rocket J-2X engine programme. Due to the quality of the telephone line the audio is best listened to through headphones with the volume up

Paul Coffman's MP3 file is here and Bob Biggs' MP3 file is here