rounds per gun) in a forward firing ventral gun pack. Plus two wingtip pods of 29 x 70-mm (2.75 in) "Mighty Mouse" fin-folding aerial rockets. One pre-production aircraft. CF-100 Mk 4A : CF-100 Mk 4 sub-type, powered by two Orenda 9 turbojet engines. 137 built. CF-100 Mk 4B : CF-100 Mk 4 sub-type, powered by two Orenda 11 turbojet engines. 141 built. CF-100 Mk 4X : Proposed version of the CF-100 Mk 4. Not built. CF-100 Mk 5 : Two-seat all-weather long-range interceptor fighter aircraft, powered by two Orenda 11 or Orenda 14 turbojet engines. Two wingtip pods of 29 x 70-mm (2.75 in) "Mighty Mouse" fin-folding aerial rockets. 332 built. CF-100 Mk 5D : Small number of CF-100 Mk 5s converted into ECM (Electronic Countermeasures), EW (Electronic Warfare) aircraft. CF-100 Mk 5M : Small number of CF-100 Mk 5s equipped to carry the AIM-7 Sparrow II air-to-air missiles. CF-100 Mk 6 : Proposed version armed with the AIM-7 Sparrow II air-to-air missile. Not built. Operators Belgian Air Force (53 Mk 5s from 1957 to 1964) 11 Squadron 349 Squadron 350 Squadron Royal Canadian Air Force Canadian Forces Air Command 409 Squadron 410 Squadron 414 Squadron 416 Squadron 419 Squadron 423 Squadron 425 Squadron 428 Squadron 432 Squadron 433 Squadron 440 Squadron 445 Squadron 448 Squadron Notable accidents and incidents 11 August 1953: a CF-100 crashed in Longueuil, Québec shortly after take-off, killing both crewmen. Two houses were struck, killing seven on the ground including five children - all six years old and younger. 15 May 1956: A CF-100 crashed into the Villa St. Louis at Orléans, Ontario, killing both crewmen and 13 civilians on the ground in what is known as the Convent Crash. 25 August 1958: Two CF-100s in a four-aircraft formation collided and crashed at No. 2 (F) Wing, Grostenquin, France. One aircraft crashed into the base hospital and one crashed into a field. Two people were killed in the hospital and three aircrew were killed. Aircraft on display Belgium 18534 – CF-100 Mk.5 on static display at the Royal Museum of the Armed Forces and of Military History in Brussels. Canada 18104 – CF-100 on static display at Canadian Forces Leadership and Recruit School in Saint-Jean-sur-Richelieu, Quebec. 18106 – CF-100 Mk.2 on static display at the Memorial Military Museum in Campbellford, Ontario. 18126 – CF-100 Mk.3D on static display at The Hangar Flight Museum in Calgary,