In article , l (Peter
Stickney) wrote:

There were a number of tricks played in the early days of jets to
increase the density of fuel - a favorite, used in the jet
cross-country attempts in the early 1950s (Bendix races, * such) was
to put cans of Dry Ice into the fuel tankers used to refuel the jets
at their intermeddiate stops. The chilled fuel was more dense, and
you'd squeeze just enough extra Cubic BTUs into the tanks that it
would essentially make up for the fuel used for takeoff.

The same trick is used for Russian Soyuz booster rockets which are
kerosene and liquid oxygen. It doesn't add much performance, but with
satellite launchers, something cheap that stays on the ground is welcome.

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John Dallman, , HTML mail is treated as probable spam.