So apparently, despite having over 2000 hours in gliders, the pilot did not recognise a spiral dive. His hamfisted attempt to recover from the same, by rolling the glider inverted and pulling back on the stick pulled the wings off, Surprise surprise.
I shudder to think of clowns like these flying drones around. Event 19 called for a 2/3 left aileron deflection "up" at 80 knots indicated airspeed. During performing event number 19, the pilot attempted to roll the aircraft left and maintain a 2/3 aileron deflection. As the pilot rolled to the left, the glider began to nose down and rapidly increase in airspeed. The pilot elected to continue to roll the airplane until it the wings were level in the inverted position. As the airplane levelled out, the indicated airspeed reached 105 knots. The pilot then began increasing the back pressure on the yoke in order to recover to straight and level flight. From: Aus-soaring [mailto:aus-soaring-boun...@lists.base64.com.au] On Behalf Of Jim Staniforth Sent: Wednesday, 20 April 2016 2:25 AM To: Discussion of issues relating to Soaring in Australia. Subject: [Aus-soaring] Windward Owl NTSB report Mike: Sorry it took so long, was away. More difficult to find as it was actually a derivative of the Sparrowhawk called the Owl (apparently the L is an extra letter) which was built specially for the Raspet Flight Research Lab. Believe a lot was learned about deceleration using BRS. The pilot was still strapped into the seat pan when he was "ejected". NTSB Identification: DFW07LA006 http://www.ntsb.gov/_layouts/ntsb.aviation/Results.aspx?queryId=c352df46-c30 d-4d70-8bdc-0c29c1033007 Post flight analysis of the data indicated that during the nose down attitude, the wings separated from the airframe at approximately 162 knots. The flight engineer stated that the glider was equipped with an airspeed indicator that indicated a maximum airspeed of 105 knots. The stop-point for the airspeed indicator was just beyond the maximum indicated airspeed. The pilot was unaware that the "never exceed" speed of 123 knots had been breached during the descent. Jim On 4/18/2016 3:38 PM, Mike Borgelt wrote: Jim, When was the incident below and what were they trying to do. Any links to it? Please remember that the Raspett team took a Sparrowhawk over redline because they installed an ASI with a stop at the redline. Broke the wings off. BRS deployment ripped the pilot in the seat pan out of the glider. Pilot used a conventional chute. Mike Borgelt Instruments - design & manufacture of quality soaring instrumentation since 1978 www.borgeltinstruments.com <http://www.borgeltinstruments.com/> tel: 07 4635 5784 overseas: int+61-7-4635 5784 mob: 042835 5784 : int+61-42835 5784 P O Box 4607, Toowoomba East, QLD 4350, Australia _______________________________________________ Aus-soaring mailing list Aus-soaring@lists.base64.com.au http://lists.base64.com.au/listinfo/aus-soaring
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