Sunday, July 22, 2012

Yes, a 60 Year Old Engine is NASA's Future

I appreciate the contributions that Wernher von Braun, but the fact that NASA is looking at using the F-1 engine as the core of its future heavy lifter (paid subscription required) makes me wonder what the hell NASA has been doing since the Apollo program:
The powerful rocket engine developed in the 1960s to launch the first men to the Moon could be reprised in the 2020s as the powerplant for strap-on boosters that NASA hopes to use in heavy-lift human missions to Mars. Under a new NASA risk-reduction project, Dynetics Inc., a relative newcomer to space launch, will explore the idea for the U.S. agency in partnership with Pratt & Whitney Rocketdyne.

Rocketdyne built the 1.5-million-lb.-thrust F-1 engine for NASA , which mounted five of the kerosene-fueled behemoths in the Saturn V first stage to propel the massive Saturn/Apollo stack off the launch pad.The F-1—19 ft. tall, with a nozzle 12.5 ft. across—epitomized the scale of the flight hardware and ground infrastructure NASA used to beat the Soviet Union to the Moon. If NASA decides to fly it again, it probably will be tested in the same stands built for the F-1 at the agency's Marshall and Stennis field centers, stacked in the same 40-story Vehicle Assembly Building at the Kennedy Space Center used for Apollo and the space shuttle, and launched from one of the pads built for the Moon program.

Dynetics scored big in a $200 million NASA effort to reduce the risk on advanced boosters for the planned Space Launch System (SLS) that Congress ordered as a government-owned deep-space alternative to the commercial vehicles the agency wants to use for transport to the International Space Station. Last week NASA selected the company to negotiate for three of six 30-month study contracts designed to reduce risk on the twin boosters that will be needed to raise the SLS capability from an initial 70 metric tons to the 130 metric tons the agency believes will be needed for human missions beyond low Earth orbit.

………

If the Dynetics proposal to use the F-1 in the boosters is accepted, all of the engines on the SLS will have heritage in earlier human spaceflight missions, and all will already have been used for decades when deep-space human missions begin. The F-1 ran a full 2.5-min. test at Edwards AFB, Calif., in 1960 (see photo), before the A-1 and A-2 test stands at Stennis were built for it. NASA and Rocketdyne are testing the uprated J-2X variant of the Saturn V J-2 engine to power the SLS upper stage . And the main SLS engine will be a throw-away version of the reusable RS-25D space shuttle main engine, also built by Rocketdyne , once the 15 surplus shuttle engines are used up. Developed in the 1970s, it will be the newest basic engine design for what may one day be NASA 's newest human launchers.
This is f%$#ing depressing.

1 comment:

  1. Worked 508 white room assembling the F1 thrust chambers at rocketdyne 1961 to 1965. Worked on the J2, H1 and the 60K chambers also. What a great time for the USA. Was in the Army when they landed on the moon. Hey I did my part now let's get some good engineers to match our feat. Good luck. Fred Rennwald Granada Hills, Ca.

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