New trainer from SZD Bielsko

At 15:43 24 June 2007, wrote:
On Jun 23, 3:51 am, Paul Hanson
wrote:
... The 50-3 was desinged in 78' I believe, the Perkoz
in 91'.
... Come on, it is a completely new aircraft; it just
uses
some of the same molds and parts as the 50-3.

'Completely New Aircraft', but:
- designed in 1991 (16 years ago)...
- uses some of the same molds...

I wish them all the best, but this hardly uses all
the
knowledge now available to us in 2007...

Best Regards, Dave 'YO'


I see where you're coming from, but I think it's only
just become financially feasible for them to enter
production recently. Plus, the technology and material
developments since then (even though it's 16 years
ago), while substantial, are not as relevant to them
since they're designing a 'lower'-performance, fully
aerobatic trainer which is financially sensible for
most clubs.

As for a previous idea about 'optimising' the aerofoil
to give better performance, as well as the cost considerations
I imagine that the one they are using at the moment
is both good at climbing, gives effective speed control,
and importantly for a fully aerobatic trainer has both
plenty of strength and inverted performance which has
more stability and better performance than many of
our modern high-speed aerofoils. These are important
characteristics for a trainer- but I wonder if they've
allowed it a higher Vne to enhance its suitability
for aerobatics.

I too wish them the best of luck with this new plane-
I've done ALL of my training in Puchaczs, and would
very much like to try a flight in the Perkoz.