- A K6 with the right attitude in a side-slip will have the rudder "sucked"
into the max position in the same manner like a DG-500. (Does this make the
K6 a modern glider?)
- During my training this was demonstrated to me by my instructor.
- The suction effect ("rudder lock") can be prevented by keeping pressure on
both rudder pedals. (This was also demonstrated by my instructor)
- I performed a rudder lock and recovery as part of side-slip training.
- This was performed in safe altitude above 1000ft.
- I believe that spin training is performed in order to prevent spins.
- No surprises during side-slipping thereafter - I am prepared because I am
trained in the procedure.
- Side-slipping can still be utilised safely to reduce rope slack.
- Not all gliders can be treated the same: read the manufacturers manual
before flying the type (what does SH state in the POH about side slipping? I
reckon SH know about the decreased elevator effectiveness and let people
know about this)
On Fri, Jun 13, 2008 at 9:27 PM, John Parncutt <[EMAIL PROTECTED]>
wrote:
> The use of side slipping on approach with modern T tail gliders such as the
> Janus for instance should be avoided. The disruption of airflow over the
> elevator can result in reduced or no elevator authority. Another effect of
> side slipping that can occur with some aircraft including the Janus is
> rudder lock.
>
> These are obviously not desirable effects on approach!
>
> For this reason in our club we do not teach the use of side slipping on
> approach with any of our aircraft.
>
> Of course many older aircraft can be side slipped very effectively and
> safely.
>
>
>
> John Parncutt
>
>
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Robert
> Hart
> Sent: Friday, 13 June 2008 3:03 PM
> To: Discussion of issues relating to Soaring in Australia.
> Subject: Re: [Aus-soaring] Forward slips?
>
> Terry Neumann wrote:
> > Sideslips were of course, a common, almost mandatory practise on
> > approach with the early ES52's and especially with the ES57
> > Kingfisher. They were lots of fun, but fell out of favour (and
> > properly so) when gliders with serious airbrakes came along. I
> > have been occasionally asked to demonstrate a sideslip in more recent
> > check flights, a curious request given the excellent airbrakes in most
> > gliders these days - especially in the AS-K21 in which the directive
> > was uttered. ("You want me to do a what??! .... Oh.... OK, here we
> > go .....(sigh)"). Personally I think they are best left alone in
> > most - if not all - modern gliders, unless of course it's a B-767.
> Hmmm
>
> I would have to disagree about using sideslips being a thing of the
> past. Admittedly, I trained in the UK in the '60s, where small paddocks
> were pretty common (and on gliders that had ineffective spoilers let
> alone ineffective airbrakes) and so sideslips were an integral part of
> the training I received (and eventually was giving as an instructor).
>
> Even in Alice, I still sideslip (although with her lack of rudder she
> doesn't slip too well in a straight line) on occasion to keep in
> practice in case I need it some time. With full landing flap, full
> airbrake and the max straight line sideslip, Alice's rate of descent is
> high and the angle of approach is really steep (think clearing obstacles
> and maximising ground roll space in a short paddock). I know that if I
> need it, the skill/knowledge/experience are there ready to be pulled
> out. I last used a sideslip during a busy arrival at this year's Easter
> comp so I could land short and quickly get off the runway, out of the
> way of a stack of traffic behind me in the circuit.
>
> I would also maintain that we should teach sideslips - one of these days
> being able to do it safely could prevent a marginal outlanding from
> becoming another outlanding accident.
>
> As a general principle, I believe pretty strongly that, with the
> exception of full aerobatics that scare quite a few people, if there's a
> safe manoeuvre that your glider can do, you should know how to do it
> safely - that way, if you need to do it, it's part of your skill set.
>
> --
> Robert Hart [EMAIL PROTECTED]
> +61 (0)438 385 533 http://www.hart.wattle.id.au
>
>
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