בטיחות: תאונת ממ"ר - ממ"ג בארה"ב
מקור: [email protected] תקציר: 2 הכלים עשו רונדלים מעל המנחת, לממ"ר היתה קריסת כנף ממערבולות הממ"ג (שצילם בוידאו באותו זמן, ראה קישור) I am posting this message to report a PPG accident that happened recently in Northern CA. Below is a summary of the event: A local PPG pilot and PPC pilot were flying out of an open field flying site used often by both. The weather was clear and temperature was around 65 degrees F. A light wind was blowing from the N NW at about 3-4 mph. The event took place at about 3:00 pm and the conditions were smooth. The PPC made a low approach to the flying field from the east heading west while taking video footage. After flying over the field, the PPC turned north, began to climb, and turned once more heading east. The PPG pilot was about 30+ seconds behind the PPC and made a pass at the field heading west at about 20-30 feet. By this time the PPC was well east of the field. When the PPG passed the end of the field and was about to turn north, he experienced a complete deflation of the left side of his wing. The wing immediately banked left and descended in a left turn to impact in the field. The pilot sustained a dislocated right shoulder, but walked away form the crash. His motor was damaged, but repairable. The PPC pilot just happened to be filming the PPG when the accident happened and caught it briefly on film, although it is pretty far away. You can view the film at http://www.usppa.org/IncidentReports.htm. It is the most recent incident. Our local group has concluded that the most likely cause of the accident was the wake of the PPC drifting south and down into the path of the PPG. This was a large 2-place PPC weighing about 600 lbs, so the wake would likely be much larger than a typical PPG wake. Has anyone flown through a PPC wake and did it result in collapse of the wing? Assuming it was a wake issue, we thought it would be helpful to share this with others. Several of our group are experienced GA pilots and have been advised regarding the dangers of wake turbulence; however, I´m not sure I would have identified the danger in this case since there seemed to be quite a bit of separation between the PPC and PPG considering their size. It appears in this case that the conditions may have been just right to allow the wake to reside for some time while drifting towards the PPG. Jeff Lawrence
מקור: [email protected] תקציר: 2 הכלים עשו רונדלים מעל המנחת, לממ"ר היתה קריסת כנף ממערבולות הממ"ג (שצילם בוידאו באותו זמן, ראה קישור) I am posting this message to report a PPG accident that happened recently in Northern CA. Below is a summary of the event: A local PPG pilot and PPC pilot were flying out of an open field flying site used often by both. The weather was clear and temperature was around 65 degrees F. A light wind was blowing from the N NW at about 3-4 mph. The event took place at about 3:00 pm and the conditions were smooth. The PPC made a low approach to the flying field from the east heading west while taking video footage. After flying over the field, the PPC turned north, began to climb, and turned once more heading east. The PPG pilot was about 30+ seconds behind the PPC and made a pass at the field heading west at about 20-30 feet. By this time the PPC was well east of the field. When the PPG passed the end of the field and was about to turn north, he experienced a complete deflation of the left side of his wing. The wing immediately banked left and descended in a left turn to impact in the field. The pilot sustained a dislocated right shoulder, but walked away form the crash. His motor was damaged, but repairable. The PPC pilot just happened to be filming the PPG when the accident happened and caught it briefly on film, although it is pretty far away. You can view the film at http://www.usppa.org/IncidentReports.htm. It is the most recent incident. Our local group has concluded that the most likely cause of the accident was the wake of the PPC drifting south and down into the path of the PPG. This was a large 2-place PPC weighing about 600 lbs, so the wake would likely be much larger than a typical PPG wake. Has anyone flown through a PPC wake and did it result in collapse of the wing? Assuming it was a wake issue, we thought it would be helpful to share this with others. Several of our group are experienced GA pilots and have been advised regarding the dangers of wake turbulence; however, I´m not sure I would have identified the danger in this case since there seemed to be quite a bit of separation between the PPC and PPG considering their size. It appears in this case that the conditions may have been just right to allow the wake to reside for some time while drifting towards the PPG. Jeff Lawrence