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.

Rescue exercise. This helicopter was lost on 6 September 1968. Photo from: Sjöhistoriska museet

Registered as N10121 before delivery to the Swedish Navy as 04061 in 1968. Sold to Columbia Helicopters in 2013.

Registered as N10119 before delivery to the Swedish Navy as 04061 in 1968. Sold to Columbia Helicopters in 2013.

Registered as N4637G before delivery to the Swedish Air Force as 04458. To the Swedish Navy as 04076 in 1985/6. Sold to Columbia Helicopters as N168CH in 2013

Registered as N10117 before delivery to the Swedish Air Force as 04455 in 1963. To the Swedish Navy as 04074 in 1985/6. Sold to Columbia Helicopters in 2013.

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

Together with HKP-3B (based on the Agusta Bell 204) 03302/42 and 03313/53 and HKP-4A 04454/94. Also present on the apron (but not visible in this photo) are H-209 & H-213 (Hughes 369D, callsign DAF3470), T-410 & T-418 (T-17, callsign DAF 3472), HKP-6B (based on the Bell 206) 06050/50 and HKP-9 (based on the Bolkow 105) (V73)/73. The Bolkow was c/n S-593 and on trial for the Försökcentralen. It resulted in an order for several aircraft. Many thanks to Bert V. for the info. Photo from Harm Reinders

Wearing its attractive splinter camouflage, the Hkp4 was primarily used in the Anti-Submarine Warfare and Search And Rescue roles by both the Flygvapnet and the Marinflyget from 1963 until 2011 when it was retired from active service.

Seen performing at the Swedish Air Force Airshow at Ronneby. Now nearing retirement, only a handful of these helicopters remain in service.

A very rare visitor to the UK, this was in the static park at the Army Air Corps' 1984 Open Day.

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