MKIV "high tech" yaw string (tech note)

On 8/10/2015 4:03 PM, bumper wrote:
On Monday, August 10, 2015 at 4:09:11 AM UTC-7, PBA wrote:
So wait, were do I download the firmware update for the yaw string?

Why that's proprietary, updates and calibration are done in a lead lined
clean room at the factory - $15 includes return shipping. But for about the
same sum you can have the very latest firmware along with all brand new
hardware from most of the better on-line glider accessory suppliers.

Or, you could drill a hole in the canopy . . .

bumper


Should the drilled hole be round or square? I'd think a square hole would have
less drag if one assumes equal hole widths and perfect sailplane alignment
with the oncoming air. Geez, for $15, is it unreasonable to expect decent
customer service, like some directions for drilling the preferred square hole?
Is it winter yet?

Bob - I'll shut up now - W.

Laugh all you want. The square hole allows me to retract the Yaw String during high speed flight, resulting in significant drag reduction. I hear that the Mark V Yaw String includes "Speed Sense"TM Technology out of the box for this very purpose. At least, that's what I heard from a guy who knows a guys who....

P3

On 08/10/2015 7:45 PM, Papa3 wrote:
Laugh all you want. The square hole allows me to retract the Yaw String during high speed flight, resulting in significant drag reduction. I hear that the Mark V Yaw String includes "Speed Sense"TM Technology out of the box for this very purpose. At least, that's what I heard from a guy who knows a guys who....

P3

I simply installed mine on the inside of the canopy, this offered the
best drag reduction possible. It also works as a rudimentary turn and
bank indicator - shh, don't tell the C/D or the R/C...