TY - JOUR
AB - DEAR SIR, I should like to add one or two points to the series of articles by Mr. Bielkowicz entitled Evolution of Energy in Jet and Rocket Propulsion. With reference to Tables I and III March mention is not made of the importance of the mixture density in choosing a rocket fuel. Although specific impulse is a major factor most rockets are designed for high speed flight involving large losses due to drag, and, as the fuel of a rocket is usually a large percentage of the total mass, it is important to use a fuel mixture with as high a density as possible. A convenient method of determining the relative merits of various fuel mixtures is by means of the density impulse. This is a figure obtained by multiplying the specific impulse by the relative density of the fuel mixture, this giving a measure of the impulse per unit volume. In Tables I and II are given the specific impulses, densities and density impulses for the fuels examined in the first article Tables I and III.
TI - Letters to the Editor
JO - Aircraft Engineering and Aerospace Technology
DO - 10.1108/eb031425
DA - 1946-10-01
UR - https://www.deepdyve.com/lp/emerald-publishing/letters-to-the-editor-9ezNjZe4pn
SP - 336
EP - 336
VL - 18
IS - 10
DP - DeepDyve
ER -