 "Time Magazine" called the Navy's grounding of all Westinghouse-powered F3H-1 Demons a "fiasco", with 21 unflyable planes, that could be used only for Navy ground training at a loss of $200 million.One high point of the J40 was the 1955 setting of an unofficial time-to-climb record, in a Demon, of in 71 seconds.A replacement engine could not be easily fitted into the grounded Demons, as the fuselage had to be redesigned and enlarged.