MKIII yaw string sale

Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
string improves again, with the MKIV replacing the MKIII. Front line units
are already being equipped with the IV.

Normally I throw away old stock if I've made an improvement, and start
selling the new, better one right away (probably not smart from a P/L
perspective). This time I've decided to sell the limited number of MKIII's
remaining at clearance price of $6 USD, 40% off the regular price of $10.
Contact me by email for availability - - first come etc.

The new MKIV's clear base looks almost identical to the MKIII it replaces.
The base is now made from a softer plastic to better conform to the canopy
curve. The base also has a thermoformed yarn channel that, along with the
new plastics better adhesion properties, should eliminate the cosmetic
problem of bubbles sometimes forming in the base laminate.

The new MKIV base required different tooling and assembly processes, and is
more tedious to assemble . . . still, price remains $10 USD (includes
domestic shipping). Available in natural wool (red, royal blue, light blue,
yellow) or synthetic yarn (previous colors plus white and turquoise).

bumper
zz
Minden NV
bumperm at att dot net

Yo Bump,

Are they PMA'd, STC'd or TSO'd? Because my local IA/FAA FSDO/CFI says
I can't install it unless it has the Good Gliderkeeping Seal of
Approval! What about dampening, I hate it when it vibrates back and
forth at 150hZ at the lower speeds.

;-)




On Jun 4, 1:45*pm, "bumper" wrote:
Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
string improves again, with the MKIV replacing the MKIII. Front line units
are already being equipped with the IV.

Normally I throw away old stock if I've made an improvement, and start
selling the new, better one right away (probably not smart from a P/L
perspective). This time I've decided to sell the limited number of MKIII's
remaining at clearance price of $6 USD, 40% off the regular price of $10.
Contact me by email for availability - - first come etc.

The new MKIV's clear base looks almost identical to the MKIII it replaces..
The base is now made from a softer plastic to better conform to the canopy
curve. The base also has a thermoformed yarn channel that, along with the
new plastics better adhesion properties, should eliminate the cosmetic
problem of bubbles sometimes forming in the base laminate.

The new MKIV base required different tooling and assembly processes, and is
more tedious to assemble . . . still, price remains $10 USD (includes
domestic shipping). Available in natural wool (red, royal blue, light blue,
yellow) or synthetic yarn (previous colors plus white and turquoise).

bumper
zz
Minden NV
bumperm * * at * *att * *dot * *net

On Jun 4, 1:45*pm, "bumper" wrote:
Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
string improves again, with the MKIV replacing the MKIII. Front line units
are already being equipped with the IV.

Normally I throw away old stock if I've made an improvement, and start
selling the new, better one right away (probably not smart from a P/L
perspective). This time I've decided to sell the limited number of MKIII's
remaining at clearance price of $6 USD, 40% off the regular price of $10.
Contact me by email for availability - - first come etc.

The new MKIV's clear base looks almost identical to the MKIII it replaces..
The base is now made from a softer plastic to better conform to the canopy
curve. The base also has a thermoformed yarn channel that, along with the
new plastics better adhesion properties, should eliminate the cosmetic
problem of bubbles sometimes forming in the base laminate.

The new MKIV base required different tooling and assembly processes, and is
more tedious to assemble . . . still, price remains $10 USD (includes
domestic shipping). Available in natural wool (red, royal blue, light blue,
yellow) or synthetic yarn (previous colors plus white and turquoise).

bumper
zz
Minden NV
bumperm * * at * *att * *dot * *net

Pictures of the new model please??

On Jun 4, 4:45*pm, "bumper" wrote:
Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
string improves again, with the MKIV replacing the MKIII. Front line units
are already being equipped with the IV.

Normally I throw away old stock if I've made an improvement, and start
selling the new, better one right away (probably not smart from a P/L
perspective). This time I've decided to sell the limited number of MKIII's
remaining at clearance price of $6 USD, 40% off the regular price of $10.
Contact me by email for availability - - first come etc.

The new MKIV's clear base looks almost identical to the MKIII it replaces..
The base is now made from a softer plastic to better conform to the canopy
curve. The base also has a thermoformed yarn channel that, along with the
new plastics better adhesion properties, should eliminate the cosmetic
problem of bubbles sometimes forming in the base laminate.

The new MKIV base required different tooling and assembly processes, and is
more tedious to assemble . . . still, price remains $10 USD (includes
domestic shipping). Available in natural wool (red, royal blue, light blue,
yellow) or synthetic yarn (previous colors plus white and turquoise).

bumper
zz
Minden NV
bumperm * * at * *att * *dot * *net

Great. Just great. Planned obsolescence. Clearly, this is just
another ploy by Bumper to get rich on the backs of poor glider folk.
When will it all end?

Erik Mann
LS8/18 P3 fully equipped with a MKIII (or is it a MKII) yawstring AND
the Quiet Vent MKII rev. 3.1

On Jun 4, 2:45*pm, "bumper" wrote:
Like the Spitfire of WWII fame that inspired it's name, the "high tech" yaw
string improves again, with the MKIV replacing the MKIII. Front line units
are already being equipped with the IV.

Normally I throw away old stock if I've made an improvement, and start
selling the new, better one right away (probably not smart from a P/L
perspective). This time I've decided to sell the limited number of MKIII's
remaining at clearance price of $6 USD, 40% off the regular price of $10.
Contact me by email for availability - - first come etc.

The new MKIV's clear base looks almost identical to the MKIII it replaces..
The base is now made from a softer plastic to better conform to the canopy
curve. The base also has a thermoformed yarn channel that, along with the
new plastics better adhesion properties, should eliminate the cosmetic
problem of bubbles sometimes forming in the base laminate.

The new MKIV base required different tooling and assembly processes, and is
more tedious to assemble . . . still, price remains $10 USD (includes
domestic shipping). Available in natural wool (red, royal blue, light blue,
yellow) or synthetic yarn (previous colors plus white and turquoise).

bumper
zz
Minden NV
bumperm * * at * *att * *dot * *net

I would buy the new product but I am still liking my 3 year old MKII
yaw string too much to want to remove it.

Bruno

"Uncle Fuzzy" wrote in message
...

Pictures of the new model please??

Pictures of the "old" MKIII are at:

http://s674.photobucket.com/albums/vv107/bumperm/

Sorry I don't have any pictures of the new MKIV yet, however they look
almost identical to the MKIII.

bumper

"Papa3" wrote in message
...

Great. Just great. Planned obsolescence. Clearly, this is just
another ploy by Bumper to get rich on the backs of poor glider folk.
When will it all end?

Erik Mann
LS8/18 P3 fully equipped with a MKIII (or is it a MKII) yawstring AND
the Quiet Vent MKII rev. 3.1

busted

Now how am I gonna afford one of those new ASH31Mi's

bumper
zz
(old, outdated, obsolete ASH26E)

wrote in message
...
Yo Bump,

Are they PMA'd, STC'd or TSO'd? Because my local IA/FAA FSDO/CFI says
I can't install it unless it has the Good Gliderkeeping Seal of
Approval! What about dampening, I hate it when it vibrates back and
forth at 150hZ at the lower speeds.

;-)


Not TSO'd, PMA'd, or STC'd. They are, however, J.C.Whitney, NAPA, and
McMaster-Carr approved, which is just as good, maybe better (Orville and
Wilbur didn't give a rat's _ _ _ about acronym groups). But, the MKIV does
come with the coveted Sham-Wow, Slap-Chop, Energy Star seal of approval

Damping is excellent at tested speeds below .21 Mach. Much above that, the
pilot may have other issues with which to concern himself, rather than his
nice looking yaw string.

bumper

"Bruno" wrote in message
...

I would buy the new product but I am still liking my 3 year old MKII
yaw string too much to want to remove it.

Bruno

Bruno,

A 3 year old MKII is suspect and may no longer be your trusted friend. It is
likely to suffer from phase reversal and thus may have lost most of its
ability to reliably locate thermals. To test for this problem, sprinkle some
water on it and see if it smells like an old sheep. You should order a new
MKIV with synthetic yarn immediately - - it will never smell like old sheep.
(g)

bumper
zz
Minden

Bumper,

Thanks for making me laugh out loud!!! Funny!

Paul Remde

"bumper" wrote in message
...

"Bruno" wrote in message
...

I would buy the new product but I am still liking my 3 year old MKII
yaw string too much to want to remove it.

Bruno

Bruno,

A 3 year old MKII is suspect and may no longer be your trusted friend. It
is likely to suffer from phase reversal and thus may have lost most of its
ability to reliably locate thermals. To test for this problem, sprinkle
some water on it and see if it smells like an old sheep. You should order
a new MKIV with synthetic yarn immediately - - it will never smell like
old sheep. (g)

bumper
zz
Minden