Originally Posted by ATC Watcher
I have heard aerodynamics (e.g. relative air entering the open gear wells ) played a role in keeping aircraft from accelarating/lifting off.
Small chance. "Triumph of raw power over aerodynamics" is an old cliché, yet it fits Q400 well.
Incıdentally, I had a terrific opportunity for observing repetitive attempts at uncommanded gear extension on pretty new mighty Q, somewhere 'round 2010. Spontaneous retraction would be new for me but if BFU, in 5-7 years, comes to conclusion that it happened here, I won't be surprised a little bit although my money is currently on missed item in preliminary cockpit preparation + bump on the runway.