[2] Bkan 1 was one of the world's heaviest and most powerful (in terms of volume of fire) self-propelled artillery vehicles in use during its service.

When the KRV tank project was cancelled it was decided that one of the prototype chassis (developed by AB Landsverk) was to be repurposed as the prototype of the new self-propelled gun under the designation Artillerikanonvagn 151 (Akv 151), translating to "Artillery cannon wagon 151", the number 151 meaning 1st vehicle with a gun in the 15 cm caliber category.

As the concept seemed promising, the self-propelled gun was re-designed by Landsverk under supervision of the Royal Swedish Army Materiel Administration to use the same drive train as the S-tank to speed up production.

Finally, the exceptionally high rate of fire of the Bkan 1 would, if not being directly detrimental, serve little to no purpose when equipped with atomic weapons.

This trait on the other hand goes well with the claim that Bkan 1 was to seal off the routes of attack in the north of Sweden near the Finnish border using chemical weapons.