Explain how would the size of parachute required on a space probe to allow it to land safely differ on
Answers
Answer:
About the parachute
Explanation:
SummaryAeroshellParachuteAirbagsLander Structure
Parachute Test
Parachute
What is the parachute?
Image of Parachute Deceleration System
The parachute helps slow the spacecraft down during entry, descent, and landing.
It is located in the backshell (green canister in the model to the left).
What is the parachute's design?
Illustration of open parachure and load during landing
The design of the parachute is driven by "loads" (the forces the parachute experiences as it fully inflates). Loads are calculated by using atmospheric density, velocity, parachute drag area, and mass. The 2003 parachute design is part of a long-term Mars parachute technology development effort and is based on the designs and experience of the Viking and Pathfinder missions. The parachute for this mission is 40% larger than Pathfinder's because the largest load for the Mars Exploration Rover is between 18,000 and 19,000 pounds (80,100 - 84,600 N*) when the parachute fully inflates. By comparison, Pathfinder's inflation loads were approximately 8,000 pounds (35,600 N*).
(*N stands for "Newton," the unit of force required to accelerate a mass of one kilogram one meter per second.)
What is the parachute made of?
drawing of open parachure and load during landing
The parachute is made out of two durable, lightweight fabrics: polyester and nylon. The parachute has a triple bridle (the tethers that connect the parachute to the backshell). This bridle is made out of Kevlar, the same material used in bullet-proof vests