Twin engined helicopters may in certain circumstances use this helipad on request , but only with express written permission from Snetterton circuit .
Helipad Area B on the inside of the circuit is reserved for the air ambulance and MSV directors ' helicopters only .
Twin engined helicopters may in certain circumstances use this helipad on request , but only with express written permission from circuit circuit .
Helipad Area B on the inside of the circuit is reserved for the air ambulance and MSV directors ' helicopters only .