Bell UH-1N
in
US Marine Corps

211 UH-1N ( Bell 212 ) were ordered for USMC service in late 1960s. Six ( plus 2 conversions ) were for presidential use (Marine One) as VH-1N and are listed separately. Many were later converted to HH-1N and turned over to US Navy as land based rescue/utility machines.

Deliveries of the twin huey (HH/UH-1N) to US Navy/USMC began in 1971. The last, and newest, UH-1N Iroquois was delivered in January 1979. They are fielded in Marine Light Attack Helicopter Squadrons (HMLA), along with the AH-1W Super Cobras. Detachments from the HMLAs are deployed as part of Marine Expeditionary Units to support ship-based amphibious operations. Both the Navy HH-1N fleet and the Marine Corps UH-1N fleet were scheduled to start being replaced by the UH-1Y in March 2008. The UH-1N could be in the fleet until 2014 when the last UH-1Y is delivered.

BuNos 158230/158259 : UH-1N ( c/n 31401/31430 ) : 30 airframes
BuNos 158260/158291 : UH-1N ( c/n 31601/31632 ) : 32 airframes
BuNos 158438/158452 : Cancelled UH-1N
BuNos 158548/158550 : UH-1N ( c/n 31633/31635 ) : 3 airframes
BuNos 158551/158554 : VH-1N ( c/n 31636/31639 ) : 4 airframes
BuNo 158555 : UH-1N ( c/n 31640 ) : 1 airframe
BuNos 158556/158557 : VH-1N ( c/n 31641/31642 ) : 2 airframes
BuNos 158558/158562 : UH-1N ( c/n 31643/31647 ) : 5 airframes
BuNos 158762/158785 : UH-1N : 24 airframes
BuNos 159186/159209 : UH-1N : 24 airframes
BuNo 159565 : UH-1N : 1 airframe

There is a problem with the c/n of the following batches

BuNos 159680/159703 : UH-1N : 24 airframes
BuNos 159774/159777 : UH-1N : 4 airframes
BuNos 160165/160179 : UH-1N : 15 airframes
BuNos 160438/160461 : UH-1N ( c/n 31730/31753 ) : 24 airframes
BuNos 160619/160624 : UH-1N ( c/n 31754/31759 ) : 6 airframes
BuNos 160827/160838 : UH-1N ( c/n 31445/31456 ) : 12 airframes

38 UH-1N and 6 VH-1N were converted to the HH-1N type with the last ones of these to be retired in 2015.

88 HH/UH-1N were in used by 2010. Last ones UH-1N retired in 2014. Replacement UH-1Y listed separately.