It is later used to deploy the main parachute as on sports systems.
Grylls later said: "I should have cut the main parachute and gone to the reserve but thought there was time to resolve the problem".
They pulled out the three large main parachutes some twenty seconds later.
The recovery forces in the area reported that only two of the main parachutes had inflated.
Once the drogue chute was released, the main parachutes were deployed.
The main parachute did not have time to deploy before the car ran off the runway.
Several stringers on the main parachute failed to cut, preventing a successful recovery.
The main parachute was deployed at about 2 km altitude.
Sport skydivers are always trained to pack their own primary "main" parachutes.
The army press office said that he jumped from a height of 13,000 feet and that his main parachute failed to open.