Noun
an unscheduled airplane landing that is made under circumstances (engine failure or adverse weather) not under the pilot's control
Source: WordNetI'm the out-of-court jester who won't settle, I up the vigilante, I'm a law unto myself but break it anyway! I made a forced landing on the Moebius Strip and now I want to know, which side are you on? Bob Black
A preliminary attempt to bomb Reval on 28 December ended in failure caused by operating problems due to the extreme cold, and one of the airships was destroyed in a forced landing at Serappen. Source: Internet
For example, on July 10, 1944, a U.S. Navy Martin PBM-3-D Mariner flying boat (BuNo 48199), piloted by William Hines, had an engine fire and made a forced landing in the ocean offshore of Howland. Source: Internet
The hull of the plane was broken open and the Catalina sank immediately. citation After the war on March 27, 1949 a PBY-6A Catalina had to make a forced landing during flight from Kwajalein to Johnston Island. Source: Internet
High cruise flight also allows more time to evaluate issues before a forced landing must be made. Source: Internet