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"Basil Fairston" wrote
PTS accuracy landing, whats that. In UK all landings are supposed to be accurate. Since I started this mess, I'll try to answer some of the questions. While I've replied to this message in particular, I've included the points raised in others. PTS means practical test standards, which are detailed descriptions of what is covered on a checkride. http://av-info.faa.gov/ is a web site that contains them. It includes a description of an accuracy landing. If you've not flown in the US, I assure you it's not what you think it is. In this situation (training a pilot who is already proficient towards a rating) many maneuvers will only be performed once or twice. There is no real syllabus for this kind of training, and relatively few flights are required. It's not a big deal if I were training a US-trained glider pilot towards the commercial and CFI, because he would have absorbed normal operating practices and habits while training towards the private. In this case, I am training an Italian-trained pilot, who has absorbed DIFFERENT normal operating practices and habits. I have already noticed some that are safety-critical, including the rudder waggle that is used by the glider pilot to signal the start of tow in the US. It is not reasonable to have him repeat the entire private syllabus, and suggesting this certainly implies that the foreign training is somehow inferior. Formal XC planning is a normal staple of instruction in the US. Briefly, in the US glider XC is taught as a series of airport-to-airport hops, such that an outlanding will most likely be at an airport. I know many US-trained glider pilots who are active in XC flying and have never landed anywhere other than an airport, because they use this method. I use this method myself - I have limited experience in off-airport operations (all power) and recognize their unavoidable hazards; I am thus not very interested in hearing that this is unnecessary. The planning is done by assuming a reduced glide ratio (typically half of what is published) and drawing segments between airports. Winds aloft data and polar information are then used to determine minimum altitudes for going ahead at any given point, as well as predicted groundspeeds and crosswind correction angles. The method is not perfect (once I nearly had to land off airport due to some strong unexpected sink) but it does reduce the probability of an off-airport landing with the consequent hazards of unknown field conditions and obstacles that are not seen until too late. The formal XC planning process is a transitional stage; with experience a pilot learns to judge go-ahead points by eye. However, I believe it is a useful method that formalizes the many factors involved and allows a low time glider pilot to venture out with a measure of confidence. It is certainly unacceptable for any glider instructor in the US to be unfamiliar with this process, since it is the norm here. In the US, we turn right and climb on release. Italy seems to do the same. I understand that some countries do otherwise. Obviously either way is fine, as long as both glider and tow pilot are on the same page. Michael |
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