Final answer:
Personnel parachutes are available in various styles, including the round parachute, square parachute, ram-air parachute, and cross parachute. Each style has its own characteristics and is used for different purposes.
Step-by-step explanation:
There are various styles of personnel parachutes, including the round parachute, square parachute, ram-air parachute, and cross parachute.
The round parachute is characterized by a circular shape and is the most traditional style of parachute. It provides a stable descent and is commonly used in military operations.
The square parachute has four square-shaped cells and offers more control and maneuverability compared to the round parachute. It is frequently utilized in sport parachuting and skydiving competitions.
The ram-air parachute employs a rectangular design with inflatable cells along the leading edges. It allows for a higher forward speed and flatter descent, making it suitable for activities like paragliding and varying air sports.
The cross parachute consists of four wings that cross over each other, forming a cruciform shape. This design offers stability and is commonly used by military and emergency personnel for a controlled descent in challenging conditions.