1342. Liquid Hydrogen Fueled Transport Aircraft

Paper

Abstract

The world’s supply of petroleum will ultimately be depleted. Most recent estimates by industry experts indicate the peak of crude oil production will be reached in the 1990-2000 decade, possibly as early as 1985.
It is timely that positive, aggressive action be initiated to develop information needed to select a fuel for future use in transport aircraft. The choice should be made in full recognition of all the economic, sociological, and technological ramifications, which will be involved. Particularly, global aspects need to be considered. Local advantages or short-term benefits, which might require another change within a few decades, should not be allowed to dominate the considerations.
On the basis of conceptual design studies and theoretical analyses liquid hydrogen has been shown to be a very attractive candidate. However, experimental data and operational experience are required to determine its practicability as a fuel for transport aircraft.
A comprehensive program has been proposed which will develop technology needed to manufacture and liquefy hydrogen efficiently, and to use it effectively in aircraft. In addition, a study to determine an acceptable type of demonstration program to provide operational experience with LH2-fueled transport aircraft is to be made.
The proposed program will provide technical data needed to properly evaluate liquid hydrogen relative to other candidate fuels. Of equal importance, it will also serve to inform and persuade the general public of the many outstanding advantages to be gained through its use, and to establish a basis for public confidence in its safety. Phase One is a three-year R and D effort, which will cost a total of $73.6 million. It is proposed that it be cooperatively funded by several nations under the aegis of the International Energy Agency.