The US Coast Guard's HC-144A is a development based on the CN-235-300 MP Persuader. Ordered to replace the Dassault HU-25 Guardians in rescue and maritime patrol missions, the first aircraft were delivered in 2006.
34-48608 rolled off the Douglas assembly line in the summer of 1944 and was delivered in September 1944. Too late to participate in D Day, the aircraft distinguished itself later during the Berlin Airlift where it received it's name. Pictured on display prior to the next day's departure to Gander, Canada as part of a 15 aircraft C-47 group to fly across the Atlantic to for the D Day 75th anniversary.
They've found a victim, figuratively speaking, for the XR-6 casualty litter test. The R-6 was a development of the R-4 Hoverfly with a nicely reshaped fuselage, making it look quite presentable among the early helicopters. Photo from: National Archives at Boston
The forerunner of the Sikorsky S-51 was the S-48. This is the fourth S-48 and the last XR-5A prototype which seems to be tested here with no less than four external litters. This airframe was ordered by the Royal Navy as FT848 but requisitioned by the USAAF. Note the affluent parking lot in 1944. Photo from: National Archives at Boston
Delivered new in 1936 to US Navy as XR2O-1 Electra Bu.Aer 0267 for use of the Secretary of the Navy. Disposed of in 1945 as N57573. Retired in 1979 and acquired by the New England Air Museum who now display it as 'NC14262' in NWAL markings.