Slightly off topic, but I was talking yesterday to a man who knew the test pilot who flew the RAAF acceptance trials of the Gloster Meteor back in the late 1940s. The Meteor had a reputation for some awkward handling characteristics, and quite a number (over 100) of RAF pilots suffered fatal accidents flying them.
Said test pilot suffered an inadvertent spin off a steep turn with wheels down, and subsequently wrote to Glosters and RAF suggesting great care was required in this area - only to be told by return post that he was the only person to have survived this experience, and nobody else had recovered from such a spin. Stability augmentation has come a long way in 60 years! Wombat Sent from Wombat's iPad > On 10 Mar 2015, at 23:05, Noel Roediger <[email protected]> wrote: > > There are several points to consider. > > All of the large sailplanes will readily spin with the exception of the S10. > > In general this will occur while thermalling with positive flap selected. > > When entering a spin in this configuration the first action must be select > full reflex flap. > > Applying normal spin recovery technique while positive flap remains set will > cause the sailplane to accelerate so rapidly that in all probability the > torsional strength of the wing will be exceeded. > > Poof: an outer wing panel separates and then there is no ability to recover, > nor is there any way to bale out due rolling "G's". > > With such rapid acceleration the aircraft will disintegrate. > > NOW; You all know the purpose of the stabiliser - fixed with an elevator - > or "all flying". > > It is to provide a down-load to stop the aircraft pitching nose-down. > > What will happen when the stabiliser is placed its full forward position - > that is its maximum angle of attack. > > The tailplane is no different to the wing. > > It will stall for the same reasons its preceding wing does and if its stall > occurs before the wing then a serious situation rapidly develops. > > The stab is stalled. > > The wing will pitch down. > > What is the recovery procedure. > > Un-stall the stab. using back stick to decrease its AoA. > > Then - with gentle elevator input - try to regain control. > > Another issue. > > Some years ago I flew many pilots in a two-seat sailplane and deliberately - > on down-wind and about to enter base - slipped the positive flap into full > reflex. > > In all cases they immediately lowered the nose and an extremely high rate of > descent occurred. > > A bit lower and we'd have impacted the ground. > > What should have occurred. > > FOOD FOR THOUGHT. > > Noel. > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Monday, 9 March 2015 12:00 PM > To: [email protected] > Subject: Aus-soaring Digest, Vol 138, Issue 7 > > Send Aus-soaring mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.internode.on.net/mailman/listinfo/aus-soaring > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific than > "Re: Contents of Aus-soaring digest..." > > > Today's Topics: > > 1. Bill Walker and David Speight (Ron Sanders) > 2. Re: Bill Walker and David Speight (Mike Borgelt) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 8 Mar 2015 19:28:28 +0800 > From: Ron Sanders <[email protected]> > Subject: [Aus-soaring] Bill Walker and David Speight > To: "Discussion of issues relating to Soaring in Australia." > <[email protected]> > Message-ID: > <caps+alxu2d0l6dfxhx0e9f2bc3xj69qvkuom4oadtur0ug3...@mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Guys, it is probably too soon just now but i really would like to see or > find an accident report wherein the reason for the demise of these two very > very experienced pilots is stated. They were flying a modern glider. We > never seem to hear what actually happened in a lot of accidents. I want to > know so that i Can continue flying but be and OLD pilot , not BOLD. I want > make sure I don't do what they did. > > Ron > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.internode.on.net/mailman/private/aus-soaring/attachments/20150 > 308/3ff6fea4/attachment.html> > > ------------------------------ > > Message: 2 > Date: Mon, 09 Mar 2015 08:30:36 +1000 > From: Mike Borgelt <[email protected]> > Subject: Re: [Aus-soaring] Bill Walker and David Speight > To: "Discussion of issues relating to Soaring in Australia." > <[email protected]> > Message-ID: <[email protected]> > Content-Type: text/plain; charset="us-ascii"; Format="flowed" > > > > > Not only that one but there have been a couple of other large high > performance two seater accidents for what appeared to be no good reason. Is > it something to do with the "two seat" bit? > > > Mike > > > At 09:28 PM 8/03/2015, you wrote: >> Guys, it is probably too soon just now but i really would like to see >> or find an accident report wherein the reason for the demise of these >> two very very experienced pilots is stated. They were flying a modern >> glider. We never seem to hear what actually happened in a lot of >> accidents. I want to know so that i Can continue flying but be and OLD >> pilot , not BOLD. I want make sure I don't do what they did. >> >> Ron >> _______________________________________________ >> Aus-soaring mailing list >> [email protected] >> To check or change subscription details, visit: >> http://lists.internode.on.net/mailman/listinfo/aus-soaring > > Borgelt Instruments - design & manufacture of quality soaring > instrumentation since 1978 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 > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.internode.on.net/mailman/private/aus-soaring/attachments/20150 > 309/87d7b883/attachment.html> > > ------------------------------ > > _______________________________________________ > Aus-soaring mailing list > [email protected] > http://lists.internode.on.net/mailman/listinfo/aus-soaring > > End of Aus-soaring Digest, Vol 138, Issue 7 > ******************************************* > > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring _______________________________________________ Aus-soaring mailing list [email protected] To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
