On Wednesday, April 12, 2006 11:49:30 PM UTC-7, bumper wrote:
Though I haven't really advertised it, a number of years back I invented the
MKII "high tech" yaw string. The high tech part being somewhat
tongue-in-cheek, though generally unreliable and refutable sources indicate
the MKII will add at least 2 points to your L/D - - and even if not, it
still looks a whole lot better than tape! I've sold 70 - 100 MKII's, mostly
to other Stemme owners and a few on the ramp at Minden . . . so perhaps
someone will post their opinion.

The MKII consists of a clear turbulator base w/ clear adhesive. Yarn is
natural wool, as that's reputed to be kinder to the Plexi than synthetic
yarn that scratches. The yarn exits through a small hole in the plastic
base. Included is an index dot for the inside of the canopy, instructions
and a money back guarantee if you're not happy.

Several MKII's were placed on a test strip of Plexiglas and continuously
exposed for over two years in the California sun. After the exposure test,
the base and adhesive could still be easily removed with no damage or
residue. To order, send $9 USD and a self-addressed, stamped envelope to:

John Morgan
194 Taylor Creek Rd.
Minden, NV 89460

I also should have a "quiet vent" kit (QV) available soon. Added to the
standard swing out vent in the canopy sliding window, testing shows a noise
reduction of 10 db - - it quiets the vent to a pleasant, low level. I'm
still working to resolve some issues with a few QV failures while wave
flying, if the QV is mechanically stressed while exposed to sub-zero
temperatures. If you don't "pluck" at the QV while it's super cold, it works
fine as is. When ready for "market", it will be $5 US.

all the best,

bumper



"Bruno" wrote in message
ups.com...
I have seen a few gliders that had yaw strings attached with something
other than the white tape most of us use. It was either a clear tape
or clear sticker. If any of you use something other than the white
tape to attach your yaw string please share what you use. Thanks!