The Bell Model 61, or Bell HSL, is a tandem rotor design made by Bell, in fact, it was the only tandem rotor designed by the company. The HSL featured multiple issues with its manufacturing, and out of the 234 issued, only around 50 made it pass construction. The Bell M61’s purpose was for aerial observation and anti-submarine warfare.
Stats
Max speed: 124MPH
Range: 350 NMI
Service celling: 14,400ft
Jobs:
Surveillance
Submarine hunting (check my post of the Westland Wasp to know more)
Payload:
Sonar
X2 torpedoes