Special Features of Flights of The Bell Rocket Belt
The pack's pilot wears shielding overalls made of thermal resistant material, since the exhaust jet and the engine's pipes are very hot. The crash helmet (which has inside it the signal buzzer) is put on. The rocket thrust-chamber's supersonic exhaust jet makes a deafeningly loud sound (by force to 130 decibels), more like a shrill screech than the roar of an aeroplane's jet engine.
As a rule, the jet exhaust is transparent and not visible in air. But in cold weather the water vapor, which is a large part of the steam-gas mixture, condenses soon after it leaves the nozzle, and then a cloud of water fog enwraps the pilot (for this reason, the very first tethered flights of the Bell Rocket Belt were carried out in a hangar). The jet exhaust is also visible if the fuel is not decomposed completely in the gas generator, which occurs if the catalyst works poorly or the hydrogen peroxide is impure.
Read more about this topic: Bell Rocket Belt
Famous quotes containing the words special, features, flights, bell, rocket and/or belt:
“With a generous endowment of motherhood provided by legislation, with all laws against voluntary motherhood and education in its methods repealed, with the feminist ideal of education accepted in home and school, and with all special barriers removed in every field of human activity, there is no reason why woman should not become almost a human thing. It will be time enough then to consider whether she has a soul.”
—Crystal Eastman (1881–1928)
“Each reader discovers for himself that, with respect to the simpler features of nature, succeeding poets have done little else than copy his similes.”
—Henry David Thoreau (1817–1862)
“Old man, it’s four flights up and for what?
Your room is hardly any bigger than your bed.
Puffing as you climb, you are a brown woodcut
stooped over the thin rail and the wornout tread.”
—Anne Sexton (1928–1974)
“You always strain tuh be de bell cow, never be de tail uh nothin’.”
—Zora Neale Hurston (1891–1960)
“A rocket is an experiment; a star is an observation.”
—José Bergamín (1895–1983)
“Now John wore clothing of camel’s hair with a leather belt around his waist, and his food was locusts and wild honey.”
—Bible: New Testament, Matthew 3:4.