New trainer from SZD Bielsko

On 26 Jun, 22:48, Dan G wrote:
On Jun 26, 10:10 pm, Ian wrote:

If it's not a hazard, why do anything about it?

Because if you don't release the weak link is going to break, which
leaves you in a launch failure situation rather than a releasing at a
more moderate angle, which is preferable.

Ah. So it is a hazard, then?

RE the club we're not naming - amazingly I understand they've not had
a winch launch accident, at least not recently. Other clubs have
though.

You know who I mean, then? Their members are said to be rather prone
to accidents at other sites ...

Ian

On 26 Jun, 22:49, Chris Reed wrote

I think the point being made is that no-one has yet proved it to be a
hazard in practice by pulling the wings off, or more likely causing the
tailplane to fail.

What about the Oly which clapped its wings as a result of an overspeed
winch launch at - iirc - Sutton Bank?


Experienced winch-launching pilots who I know are content to accept
overspeeding in the first part (say 1/3) of the launch and wait for the
speed to settle to the correct figure.

I sort of agree. I will never rotate into the full climb if the speed
is excessive, and I will give the driver a few seconds to sort things
out. If I have the slightest doubt, though, I will pull off and
perform some ...

... forcible re-education of the winch driver.

Since an overspeed at the early part of thelaunch is a) entirely
preventable and b) entirely the winch driver's fault. When I'm
driving, by the way, I expect to be treated the same way. I make a
point of regularly asking experienced pilots (normally instructors)
how the launch was, particularly at the start of my stint, as it helps
to picture wind gradients and so on.

Ian

Ian wrote:

What about the Oly which clapped its wings as a result of an overspeed
winch launch at - iirc - Sutton Bank?

The accident report put the cause as severe corrosion of the spar end
metal fittings.

On 27 Jun, 09:47, Chris Reed wrote:
Ian wrote:

What about the Oly which clapped its wings as a result of an overspeed
winch launch at - iirc - Sutton Bank?

The accident report put the cause as severe corrosion of the spar end
metal fittings.

Certainly a factor, but if it hadn't oversped (overspeeded?) on
launch, it wouldn't have failed. Well, not then, anyway.

I knew of a Ka6 which pushed over so violently after a cable break
that it landed afterwards - for the last time - with significant
anhedral. OK, nothing to do with overspeeding, but a salutory tale
illustrating something or other.

Ian

"Ian" wrote in message
oups.com...
On 27 Jun, 09:47, Chris Reed wrote:
Ian wrote:

What about the Oly which clapped its wings as a result of an overspeed
winch launch at - iirc - Sutton Bank?

The accident report put the cause as severe corrosion of the spar end
metal fittings.

Certainly a factor, but if it hadn't oversped (overspeeded?) on
launch, it wouldn't have failed. Well, not then, anyway.

Well, that is pure speculation, isn't it ?

On Wed, 27 Jun 2007 01:07:44 -0700, Ian
wrote:

On 26 Jun, 22:40, Andreas Maurer wrote:
On Tue, 26 Jun 2007 14:10:57 -0700, Ian
wrote:

If it's not a hazard, why do anything about it?

To avoid breaking the cable?

Then it would be a hazard!

That's why something needs to be done.


Bye
Andreas

On 27 Jun, 12:57, "Bert Willing" willing_no_spam_ple...@ir-
microsystems.com wrote:
"Ian" wrote in message

Certainly a factor, but if it hadn't oversped (overspeeded?) on
launch, it wouldn't have failed. Well, not then, anyway.

Well, that is pure speculation, isn't it ?

My understanding was that the failure which occurred was deemed to be
a result of structural problems triggered by overspeed. I am happy to
be corrected if I am misremembering - I can't find accident reports on
the BGA website any more to check.

A friend of mine has an Oly which has been grounded for ever for this
reason - the glue in the aluminium/wood/aluminium sandwich spar has
seriously deteriorated and is beyond economic repair. He was winching
it quite happily until the accident happened.

Ian

On 27 Jun, 13:55, Andreas Maurer wrote:
On Wed, 27 Jun 2007 01:07:44 -0700, Ian
wrote:

On 26 Jun, 22:40, Andreas Maurer wrote:
On Tue, 26 Jun 2007 14:10:57 -0700, Ian
wrote:

If it's not a hazard, why do anything about it?

To avoid breaking the cable?

Then it would be a hazard!

That's why something needs to be done.

The normal reason why things need to be done in the UK is that Lasham
has a new CFI who wants to make his mark ... nobody ever got famous by
saying "everything is going pretty well at the moment."

Ian

In article . com, Ian
wri
That's why the BGA has every ab initio in the UK religiously
checking the flaps on a K13 every time they launch.

My God! (that's the religious bit)

I don't think I've ever seen a K13 with flaps.
--
Mike Lindsay

Mike Lindsay wrote:
In article . com, Ian
wri
That's why the BGA has every ab initio in the UK religiously
checking the flaps on a K13 every time they launch.

My God! (that's the religious bit)

I don't think I've ever seen a K13 with flaps.
True, but they check them just in case...