LS-6 and rudder size

[Brad[_2_]]

I've been looking at the LS-6 gliders lately and noticed that on the
LS-6C the rudder looks almost twice as big at the root chord than on
the LS-6A. Is this an optical illusion, or is it real?

I am guessing that since the later version of the LS-6 had tip
extensions, the rudder was resized to allow for that.

Would love to hear from any LS-6 drivers of the "smaller" rudder
versions how the bird handles, especially regarding rudder inputs.

Regards,
Brad

[[email protected][_2_]]

On Aug 10, 7:17*am, Brad > wrote:
> I've been looking at the LS-6 gliders lately and noticed that on the
> LS-6C the rudder looks almost twice as big at the root chord than on
> the LS-6A. Is this an optical illusion, or is it real?
>
> I am guessing that since the later version of the LS-6 had tip
> extensions, the rudder was resized to allow for that.
>
> Would love to hear from any LS-6 drivers of the "smaller" rudder
> versions how the bird handles, especially regarding rudder inputs.
>
> Regards,
> Brad

I've been flying my 15M LS6-b for 9 years (about 1200 hours?): Flies
great, rudder is sized just big enough to allow full aileron and full
rudder to initiate coordinated roll, and is not oversensitive in
highspeed cruise or thermalling. Hardly notice the pedals, actually -
the glider has surprisingly little adverse yaw for having full span
flaperons!

Kirk
66

[Brad[_2_]]

On Aug 10, 8:53*am, " >
wrote:
> On Aug 10, 7:17*am, Brad > wrote:
>
> > I've been looking at the LS-6 gliders lately and noticed that on the
> > LS-6C the rudder looks almost twice as big at the root chord than on
> > the LS-6A. Is this an optical illusion, or is it real?
>
> > I am guessing that since the later version of the LS-6 had tip
> > extensions, the rudder was resized to allow for that.
>
> > Would love to hear from any LS-6 drivers of the "smaller" rudder
> > versions how the bird handles, especially regarding rudder inputs.
>
> > Regards,
> > Brad
>
> I've been flying my 15M LS6-b for 9 years (about 1200 hours?): *Flies
> great, rudder is sized just big enough to allow full aileron and full
> rudder to initiate coordinated roll, and is not oversensitive in
> highspeed cruise or thermalling. *Hardly notice the pedals, actually -
> the glider has surprisingly little adverse yaw for having full span
> flaperons!
>
> Kirk
> 66

thanks for the report Kirk!

Brad

[AndersP]

Brad wrote:
> I've been looking at the LS-6 gliders lately and noticed that on the
> LS-6C the rudder looks almost twice as big at the root chord than on
> the LS-6A. Is this an optical illusion, or is it real?
>
> I am guessing that since the later version of the LS-6 had tip
> extensions, the rudder was resized to allow for that.
>

Yep. Correct, the LS-6C with 17+ meter wingtip extensions got i bigger
rudder to give it a bit more bite which is needed when that looong wing
starts to generate drag when starting the roll to turn.

> Would love to hear from any LS-6 drivers of the "smaller" rudder
> versions how the bird handles, especially regarding rudder inputs.

I have an LS-6b and the (smaller) rudder is more than enough on that
one. Feels like a sports car to fly, more than ample rudder authority.

Our club has an LS-6C which I've flown many times and it is very nice
also but doesn't quite have the same roll-rate as the LS-6b when flying
with the looong tips.

So, what about the LS-6C with short wing tips on ?! Well, when thinking
of it, I don't think I have ever flown that one with short tips :-). I
have to try next time I get an opportunity, just for the sake of comparison.

/Anders P

>
> Regards,
> Brad

[Robert Danewid]

The larger rudder is because of the 17.5/18m tips on the LS6-c.

/Robert


AndersP skrev:
> Brad wrote:
>> I've been looking at the LS-6 gliders lately and noticed that on the
>> LS-6C the rudder looks almost twice as big at the root chord than on
>> the LS-6A. Is this an optical illusion, or is it real?
>>
>> I am guessing that since the later version of the LS-6 had tip
>> extensions, the rudder was resized to allow for that.
>>
>
> Yep. Correct, the LS-6C with 17+ meter wingtip extensions got i bigger
> rudder to give it a bit more bite which is needed when that looong wing
> starts to generate drag when starting the roll to turn.
>
>> Would love to hear from any LS-6 drivers of the "smaller" rudder
>> versions how the bird handles, especially regarding rudder inputs.
>
> I have an LS-6b and the (smaller) rudder is more than enough on that
> one. Feels like a sports car to fly, more than ample rudder authority.
>
> Our club has an LS-6C which I've flown many times and it is very nice
> also but doesn't quite have the same roll-rate as the LS-6b when flying
> with the looong tips.
>
> So, what about the LS-6C with short wing tips on ?! Well, when thinking
> of it, I don't think I have ever flown that one with short tips :-). I
> have to try next time I get an opportunity, just for the sake of
> comparison.
>
> /Anders P
>
>>
>> Regards,
>> Brad