improvement program status of the le-5b engine

Paper number

IAC-08.C4.1.8

Author

Mr. Hiroyuki Kobayashi, Mitsubishi Heavy Industries, Ltd., Japan

Year

2008

Abstract

Development of the Improved LE-5B Engine, namely the LE-5B-2 Engine, has been performed based on the contract with JAXA, to reduce the vibration level for the second stage of H-IIA Launch Vehicle.
Qualification tests have been completed in July, 2007 and the first LE-5B-2 has been applied for the second stage engine of H-IIA Launch Vehicle No.14 (H-IIA F14).
On February 23rd, 2008 H-IIA F14 was successfully launched in Japan, and by this flight, significant reduction of vibration level has been confirmed.
The feature of the LE-5B-2 Engine and results of improvement are presented.

Abstract document

IAC-08.C4.1.8.pdf

Manuscript document

IAC-08.C4.1.8.pdf (🔒 authorized access only).

To get the manuscript, please contact IAF Secretariat.