The initial run of 206L-1 helicopters had the 250-C28 engines which had problems right from the start. While Bell and RR worked on those problems, Bell ran the additional series of 17 206 'straight' L models with the C20B and water alcohol injection system. A number of those aircraft were later converted to C20R engines.
LongRanger+5/-4 Linky 5/8/2025 7:14:56 AM
LongRanger+10/-1 Finally... 5/8/2025 5:16:57 PM
LongRanger
+4/-4 Bell Guy 5/10/2025 10:02:04 AM
LongRanger
+2/-5 wub 6/10/2025 3:01:41 PM