Of course, only empirical testing will provide an answer WRT the PIK20D,
however, positive results were achieved in the Dick Johnson Ventus 2 flight
test. See part 2
http://www.ssa.org/Johnson/80-1996-06.pdf

Good sealing generally yields good results.

Frank Whiteley

"culverflyer" wrote in message
...
With the S seals would there be an advantage to have the external Mylar's?
"Chris" wrote in message
. au...
"S" seals are possible and I've replaced them in a PIK, just make the
seals
long enough to allow side movement when refitting to hinge pins,
probably
do
not require "S" seals if Mylar's are fitted top and bottom

Chris Runeckles
Universal Plastics P/L

"Janos Bauer" wrote in message
...
Chuck Lohre wrote:

Internal seals seemed impossible because the ailerons and flaps
have to move side ways to assemble.

Hmm, it should be possible somehow since our pik was factory
installed
with it.

/Janos