In June 2015, it was reported that Sikorsky was ready to begin deliveries of the first interim Cyclones to the Royal Canadian Air Force. Six helicopters were delivered on 19 June 2015, and two "Block 1.1" Cyclones were delivered in November–December 2015. These eight helicopters will allow for RCAF training on the Cyclone until the fully operational Block 2 Cyclones start to arrive in 2018. A ninth CH-148 was delivered in August 2016. The eleventh helicopter was delivered in March 2017 as deliveries of the weapons system continue. In June 2018, the Cyclone was declared to have reached its "initial operating capability".