Far safer to follow the Boeing 737 FCTM advice on Upset Recovery that states: "If normal pitch control inputs do not stop an increasing nose attitude, rolling the airplane to a bank angle that starts the nose down should work. Bank angles of about 45 degrees, up to a maximum of 60 degrees, could be needed."
Have just read with great interest the latest Flight International report on the Dassault Falcon 7X that had a trim runaway on 24 May 2011. Edited for brevity (self) :
French investigators have revealed the first officer of a Falcon 7X used an escape technique from bombing exercises to regain control of the jet during a trim runaway event on 24 May 2011.
The aircraft trimmable horizontal stabiliser moved from its neutral position to 12 degrees down in 15 seconds as the 7X descended through 13,000 feet on approach to Kuala Lumpur's Subang Airport. Although the autopilot acted to counter the resulting pitch up, it disengaged after 8 seconds and the aircraft pitched up to 25 degrees.
The French speaking F/O who was flying realised his attempts to correct the pitch were ineffective but struggled to explain the situation to the English speaking captain.
He resorted to a bombing manoeuvre learned during his military career. He banked to 90 degrees to reduce pitch while the captain initially opposed the extreme 98 degree right bank. The F/O took priority control and maintained the bank at 40-80 degrees for 20 seconds.
This reflexive correction reduced the pitch from 41 degrees nose-up to 10 degrees and brought the angle of attack down to five degrees. The jet's airspeed fell to 150 knots from 297 knots during the upset which lasted 2 minutes and 30 seconds and subjected the aircraft to loads of up to 4.6g.
The BEA has credited the F/O for his rapid improvisation in recovering the Swiss registered aircraft (HB-JFN)"
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Quick thinking indeed and it showed the difficulty of trying to make a fast explanation to the other crew member of what's going on, when immediate action is the priority. Rolling into a steep turn to get the nose down from a rapidly increasing pitch angle seems not to be part of airline simulator training. The first officer's military training certainly paid off in this incident.