My club in the UK has 9 of the things that have all made many tens of
thousands of launches, mostly by winch. They are tough, easy to repair and
relatively cheap to buy compared with modern glass. They are a good, safe,
all round trainer, but are rather slow and have low performance by modern
standards. Unlike its successor the K21, it can be persuaded to spin and
doesn't quickly loose vast amounts of height doing so, unlike some other
modern glass trainers. We are starting to replace them with K21s and
DG1000s.

Derek Copeland

At 04:54 29 October 2008, noel.wade wrote:
Frank -

Good point! Whether your group rigs and de-rigs the two-seaters often
is another important consideration.

This, of course, depends not only on your hangar/trailer/tie-down
situation and your local weather patterns, but ALSO in how you run
your operations and what kind of flying you intend to do with your 2-
seat ships (for example, XC training entails a slightly higher risk of
a 2-seater landout and the resulting de-rig to trailer it home).

Take care,

--Noel