After the success of Tridair's Gemini ST twin-engine conversions of the 206L in the early 1990s, Bell produced the equivalent Bell 206LT TwinRanger based on the 206L-4.
Despois do éxito da conversión de dous motores Tridair Gemini ST do Bell 206L a principios dos anos 90, Bell fabricou o equivalente Bell 206LT TwinRanger baseado no 206L-4.