The Försvarsmakten (Swedish defense forces) bought 22 Vertol 107s in 1963 for both the Flygvapnet (designated HKP 4A) and Marinen (4B and 4C).This particular 4B served at Berga and was mainly used for submarine hunting, minesweeping and various rescue missions. It was manufactured in 1959 as a prototype and came to Sweden in 1970 as a replacement and, as a result, has square windows on each side rather than all other HKP 4s with round windows. This helicopter rescued survivors from the Estonia ferry disaster and was handed over to the Flygvapenmuseum in 2011 after serving for 40 years.

Originally Boeing Vertol BV-107/II-2b civil prototype N6679D in 1962, extensively modified as Model 347 prototype 1965-67 and to the Swedish Navy in 1969 as model BV-107/II-15 retaining the eight square windows

This nice exhibit in the Flygvapenmuseum was built in 1962 as a prototype for the civil BV-107-II model, N6679D. Also used as BV-347 Winged Chinook concept demonstor, fitted with four stub wings. Delivered to Sweden in 1970 as a BV-107-II-15 naval helicopter but retaining the civil model's square windows. Flown into storage at Malmen in 2007 and finally retired in 2010.

A very welcome visitor indeed, these helicopters rarely being seen outside Sweden, where this example was still in service until 2007. Originally Boeing Vertol BV-107/II-2b civil prototype N6679D in 1962, extensively modified as Model 347 prototype 1965-67 and to Swedish Marinen 1969 as model BV-107/II-15 retaining the eight square windows