 The Mark 2A and Mark 3 were also to have updated engines, capable of producing each, increasing the maximum takeoff weight by and flight ceiling to 70,000 ft.In 2010, in the context of ongoing controversy surrounding the Lockheed Martin F-35 Lightning II Canadian procurement, as an alternative to continued support of the troubled F-35, a group of individuals began lobbying Ottawa to consider domestic production of an updated version of the Avro Arrow, using modern materials and engines but keeping the Arrow's proven "basic design".The group feels that a modernized Arrow would out-perform the F-35 in speed, range and maximum altitude, among others, while admitting that the Arrow lacks the F-35's stealth characteristics.