Great pickup.....and for a 15 Metre aircraft the two are one and the same; and possibly this is where the history lies as documents were edited by different authors; it obviously requires clarification.
SDF On 15/10/2012, at 13:17, Mark Newton <new...@atdot.dotat.org> wrote: > > Hi folks. > > My google-fu is failing me, but at least one of you can probably > help. > > I've long accepted that the rule for obstacle clearance is 50'. > > However, the GFA instructor handbook describes it as a wingspan, > and the B certificate oral exam calls 50' a "recommended" minimum, > so I'm trying to go back to sources to find the origin of the rule. > > And I can't seem to find it written down anywhere. > > I'm beginning to suspect that my long-term acceptance of the 50' > rule is wrong, and that the real limit is, shall we say, more > "operationally fluid" than that. > > Wondering if the strict mention of 50' that I've seen at clubs all > over Australia is actually more of a tradition, perhaps derived from > a misunderstanding of certified light aircraft performance charts > which give minimum takeoff distances including clearance of a 50' > obstacle. > > Does anyone have a cite to the regulations? > > (while you're at it, providing a cite to a current GFA or non-exempted > CASA regulation which states what GFA annual check entails, whether > it's required to be signed out in a logbook, or whether an instructor > is even required to be present, would help to settle a long-standing > argument :) > > - mark > _______________________________________________ > Aus-soaring mailing list > Aus-soaring@lists.internode.on.net > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring _______________________________________________ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
