At 17:07 19 October 2019, wrote:
On Saturday, October 19, 2019 at 5:33:32 PM UTC+1, Matt McBee
wrote:
The JS4 website says "performance polar standard class", but then
under
SAFETY describes automatic control hookups for flaperons.

So... what type of sailplane is this, and how is it different from the
JS3? Does it have flaps or not?

Matt

Differences from the JS3 - the obvious ones on the link are larger
wing
area and different plan-form, poorer high speed performance and no
flaps on
the 3 view


Errors whilst updating the website - a lot of things where different
yesterday i.e. 'open class polar' - looked like things had been copied
and pasted over from other descriptions -some links are still not
working correctly etc., the JS4 is definitely a std class machine by all
accounts.