Ditto to what Bruce said :
Absolute performance the "a" Schempp is a bit better - IF you fit comfortably.
Here in Uvalde Lisa Trotter [who is small] fit fine but cannot reach things in
cockpit - you need to be small but with long arms!
Talked to a Ventus 2bx owner last night who got the 2x version because it is a
longer cockpit [I presume like 2c] and he is 6'6".
It comes down to the designer, Klaus Holighaus made the "a" to fit himself and
the "b" to fit everyone.
Gerhard Waibel's cockpits fit the more "rotund", as do Grob.
LS are in between. Having spent 5 days trying different cusions etc to get
comfortable all I can say is comfort counts, parachutes need to be picked with
the glider in mind as well.
Tom
________________________________
From: Bruce Campbell <[email protected]>
To: Discussion of issues relating to Soaring in Australia.
<[email protected]>
Sent: Saturday, 6 August 2011 10:57 PM
Subject: Re: [Aus-soaring] 'A' model gliders
Tim,
Delta one goes better than any B I came across. ;-)
Mart,
Depends who you ask. The Discus A has 80mm more wingspan than a Discus B - yes
both are 15m wingspan, but the A fuselage has 80mm less width. Plus I think
that the bottom fairing between the wing lower surface and the fuse is more
aerodynamic - but I was an A owner of course. B owners reckon that the B fuse
was more aero despite its girth. Just ask Tom C :-)
The truth is that like all gliders, both are a compromise. The A trades off
cockpit space for performance - real or illusional. The B (and C's in the
current generation of Schempp gliders) potentially trades off performance for
comfort - but it is also more flexible (more pilots can fly it) and hence
generally has better resale value.
Whatever the difference really is, it is probably less than the variation
between gliders that come out of the same molds. I have flown great B's - and
ordinary B's. The good ones would be competitive with most A's - you'd need a
good A to notice a difference.
There are a series of mods to create more space in A cockpits - modified seat
pans (after market) to (I've been told) moving the forward bulkhead forward
about 50mm. I would enjoy comparing a new Ventus2ax or 2cax (to the Discus A)
but then who wouldn't!
BTW, I think that the LS8 cockpit is halfway in between the two Schempp
versions.
Cheers
Bruce
On 6 August 2011 18:12, Tim Shirley <[email protected]> wrote:
Hi all,
>
>It is hard to imagine that any difference in glide angle between an
A or B model (which is tiny if it is there at all) would cancel out
differences in pilot skill and performance. But it is true that the
best pilots will seek every advantage no matter how small so perhaps
that is the reason they chose A models. It may even be just
psyching the opposition. I recall years ago a Jantar owner painted
"Jantar 4" on his glider just before a competition. There is no
such thing, but it sure had the Jantar 2 and 3 pilots wondering.
>
>That said, my Discus A fits me perfectly. And of course it goes
heaps better than a B...
>
>Size does matter... :)
>
>Cheers
>Tim
>tra dire e fare c'è mezzo il mare
>
>On 6/08/2011 5:30, Mart Bosman wrote:
>Hi all,
>>
>>I have a question that might have been asked before but I haven't
found it.
>>
>>How come that there are no minimum cockpit sizes for gliders?
>>
>>I am following the euros and again the gliders with a small
cockpit that apparently have about half a point better glide are
leading. For yesterday the first 8 are an 'a' model. (or standard
small)
>>
>>To me it looks unfair that your statue gives you a competition
advantage.
>>
>>Thanks,
>>
>>Mart.
>>
>>http://egc2011.pociunai.lt/index.php?option=com_wrapper&Itemid=132
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>>
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