NASA Changes Its Mind On CEV, CLV Launch Vehicle Engines | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Recent Daily Episodes

Episode Date

Monday

Tuesday

Wednesday

Thursday

Friday

Airborne On ANN

Airborne 08.24.15

Airborne 08.25.15

Airborne 08.26.15

Airborne 08.27.15

Airborne 08.28.15

Airborne Hi-Def On YouTube

Airborne 08.24.15

Airborne 08.25.15

Airborne 08.26.15

Airborne 08.27.15

Airborne 08.28.15

EAA/ANN AirVenture Innovation Preview

AIP-#1 Vimeo

AIP-#2 Vimeo

AIP-Part 1 YouTube

AIP-Part 2 YouTube

Tue, May 30, 2006

NASA Changes Its Mind On CEV, CLV Launch Vehicle Engines

Will Use Modified Delta IV Boosters, J-2s Instead Of Shuttle Engines

It all came down to money -- the reason NASA has decided to use clusters of modified Delta IV rocket engines to propel the boosters the agency is designing to rocket the upcoming Crew Exploration Vehicle (CEV) into orbit -- and onto the moon -- instead of relying on less-expensive "throwaway" versions of the space shuttle's main engines.

NASA told Florida Today the agency will save nearly half the $40 million cost per engine for the modified shuttle engine -- itself a simpler version of the $80 million reusable engines currently employed on NASA's three-orbiter fleet -- by using the Delta IV powerplant.

"In the long run, the (Delta IV) will be much less expensive to own and operate," said Marshall Space Flight Center deputy director Dan Dumbacher. "Right away, we will be saving $100 million a flight just on the cost of engines."

The decision to use the Delta IV will require modifications to the Apollo-era, Saturn V-derived booster rocket NASA is relying on to launch cargo and manned crews into orbit, and onto such destinations as the moon and Mars.

For starters, the main booster used on the gigantic Cargo Launch Vehicle (or CLV, which would be sent into orbit in advance of the Crew Exploration Vehicle for a trip to the moon) will need to be widened an additional 5 1/2 feet -- to an awe-inspiring 33 feet in diameter -- in order to accommodate the five Delta IV engines, referred to individually as RS-68s.

The upper stage for both the CLV and CEV boosters was also originally intended to be powered by the shuttle-engine-derived motor... but they will now be powered instead by an upgraded version of Pratt & Whitney Rocketdyne's J-2 booster.

The J-2 has seen extensive duty for NASA... it was originally used on the Saturn V booster that sent Apollo astronauts to the moon.

FMI: www.nasa.gov

Advertisement

More News

Airborne 08.28.15: 'Big' Bezos Announcement?, MA Aero-Taxes, Harrison Ford

Also: Barnstorming: The FAA v Hoover Fight Ain’t Over, Hail-Damaged Dreamliner, UAV Shooter Charged, NASA Global Hawk, MiG-21 Lancers, ICAO Manual Blue Origin founder and Ama>[...]

RFP: ANN Considering Future Options For HQ Relocation

A Very Bright Future For ANN, Aero-TV, and Airborne May Require Some New Digs ANN may be looking for a new home... hopefully, a permanent one. We're currently inviting proposals fo>[...]

Airborne 08.28.15: 'Big' Bezos Announcement?, MA Aero-Taxes, Harrison Ford

Also: Barnstorming: The FAA v Hoover Fight Ain’t Over, Hail-Damaged Dreamliner, UAV Shooter Charged, NASA Global Hawk, MiG-21 Lancers, ICAO Manual Blue Origin founder and Ama>[...]

CAP Named To Air Force 'Total Force Team'

Revision Signed By The Air Force Chief Of Staff Gen Mark A. Welsh announced today the official recognition of the Civil Air Patrol as the fourth member of the Air Force Total Force>[...]

Airborne 08.27.15: Golden Wings Flying Museum, AUVSI v CA, FAA Delays Pilot DB

Also: Join The API!, ATC Goofs... Badly, Shuttle Water Tanks, Herlong Rebrands FBO, Gogo's Next Generation, China A/C Demand, Chatham MA RFP You won’t see us run very many fo>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2015 Web Development & Design by Pauli Systems, LC