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At rated thrust, a liquid-fueled rocket motor consumes 80 kg/s of nitric acid as oxidizer and 32 kg/s of aniline as fuel. Upon combustion, flow leaves the nozzle axially at a speed of 180 m/s relative to the nozzle. The pressure at the exit plane is 110 kPa. The nozzle exit diameter is D = 0.6m. Calculate the reaction force necessary to hold the motor on a test stand, placed horizontally on rails, at standard ambient pressure of 100 kPa. If this rocket is to be launched vertically, what is its maximum mass such that it can lift off the ground?

At rated thrust, a liquid-fueled rocket motor consumes 80 kg/s of nitric acid as oxidizer and 32 kg/s of aniline as fuel. Upon combustion, flow leaves the nozzle axially at a speed of 180 m/s relative to the nozzle. The pressure at the exit plane is 110 kPa. The nozzle exit diameter is D = 0.6m. Calculate the reaction force necessary to hold the motor on a test stand, placed horizontally on rails, at standard ambient pressure of 100 kPa. If this rocket is to be launched vertically, what is its maximum mass such that it can lift off the ground?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question 4 At rated thrust, a liquid-fueled rocket motor consumes 80 kg/s of nitric acid as oxidizer and 32 kg/s of aniline as fuel. Upon combustion, flow leaves the nozzle axially at a speed of 180 m/s relative to the nozzle. The pressure at the exit plane is 110 kPa. The nozzle exit diameter is D = 0.6m. Calculate the reaction force necessary to hold the motor on a test stand, placed horizontally on rails, at standard ambient pressure of 100 kPa. If this rocket is to be launched vertically, what is its maximum mass such that it can lift off the ground?
Transcribed Image Text:Question 4 At rated thrust, a liquid-fueled rocket motor consumes 80 kg/s of nitric acid as oxidizer and 32 kg/s of aniline as fuel. Upon combustion, flow leaves the nozzle axially at a speed of 180 m/s relative to the nozzle. The pressure at the exit plane is 110 kPa. The nozzle exit diameter is D = 0.6m. Calculate the reaction force necessary to hold the motor on a test stand, placed horizontally on rails, at standard ambient pressure of 100 kPa. If this rocket is to be launched vertically, what is its maximum mass such that it can lift off the ground?
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