The ideal Christmas gift

[bumper[_4_]]

For your glider friends: inexpensive, used often, and appreciated.
The MKIV yaw string, with it's clear tubulator base, is one of the
least expensive "right up front" toys you can buy for a glider! Just
$12 USD, free shipping to US and only $1 international shipping.

bumper
zz
Minden, NV
for more info or to order: bumperjm at g mail dot com

[Andy[_1_]]

On Dec 13, 9:02*am, bumper > wrote:
> For your glider friends: *inexpensive, used often, and appreciated.
> The MKIV yaw string, with it's clear tubulator base, is one of the
> least expensive "right up front" toys you can buy for a glider! Just
> $12 USD, free shipping to US and only $1 international shipping.
>
> bumper
> zz
> Minden, NV
> for more info or to order: bumperjm at g mail dot com

If you already have one of these, or are still managing just fine with
yarn and tape, you could make a copy of Collected Classics of Soaring
your favorite Christmas gift.

http://www.asa-soaring.org/publications.asp

[Ralph Jones[_3_]]

On Mon, 13 Dec 2010 08:02:33 -0800 (PST), bumper >
wrote:

>For your glider friends: inexpensive, used often, and appreciated.
>The MKIV yaw string, with it's clear tubulator base, is one of the
>least expensive "right up front" toys you can buy for a glider! Just
>$12 USD, free shipping to US and only $1 international shipping.
>
>bumper
>zz
>Minden, NV
>for more info or to order: bumperjm at g mail dot com

Is it metric?

rj

[vontresc]

On Dec 13, 10:02*am, bumper > wrote:
> For your glider friends: *inexpensive, used often, and appreciated.
> The MKIV yaw string, with it's clear tubulator base, is one of the
> least expensive "right up front" toys you can buy for a glider! Just
> $12 USD, free shipping to US and only $1 international shipping.
>
> bumper
> zz
> Minden, NV
> for more info or to order: bumperjm at g mail dot com

When do you plan on releasing the iPhone or iPad version? I've been
looking for the iMKIV on the appstore, but it isn't there yet.

Pete

[bumper[_4_]]

On Dec 13, 2:35*pm, Ralph Jones > wrote:
> On Mon, 13 Dec 2010 08:02:33 -0800 (PST), bumper >
> wrote:
>
> Is it metric?
>
> rj

Why yes, the MKIV is available in SAE, Metric, Whitworth, as well as a
sub-miniature version in the very popular RCH measurement standard.
All except the latter at no additonal charge.

Sorry, no intention to develop the iMKIV for the Apple as we feel the
future is with Android OS. Sadly, initial tests on the Droid have been
disappointing, with the yarn getting hopelessly tangled up in the
fingers while texting, precipitating a stall spin and sometimes the
dreaded tailspin or engine stall. With no demand whatsoever, the MKIV
should be available for ADS-B any day now.

bumper

[Tony V]

bumper wrote:

> Why yes, the MKIV is available in SAE, Metric, Whitworth, as well as a
> sub-miniature version in the very popular RCH measurement standard.

That's all well and good - but, is it Y2K compliant?

Tony V.

[sisu1a]

> Why yes, the MKIV is available in SAE, Metric, Whitworth, as well
as a
> sub-miniature version in the very popular RCH measurement standard.
> All except the latter at no additonal charge.

>With no demand whatsoever, the MKIV
> should be available for ADS-B any day now.

All well and nice, but the big question *this winter is whether it
will be compatible with PowerFlarm.

-Paul

[Tony[_5_]]

On Dec 14, 10:41*am, sisu1a > wrote:
> *> Why yes, the MKIV is available in SAE, Metric, Whitworth, as well
> as a
>
> > sub-miniature version in the very popular RCH measurement standard.
> > All except the latter at no additonal charge.
>
> *>With no demand whatsoever, the MKIV
>
> > should be available for ADS-B any day now.
>
> All well and nice, but the big question *this winter is whether it
> will be compatible with PowerFlarm.
>
> -Paul

if i go to a contest will rental MKIV's be available?

[Grider Pirate]

On Dec 14, 8:44*am, Tony > wrote:
> On Dec 14, 10:41*am, sisu1a > wrote:
>
> > *> Why yes, the MKIV is available in SAE, Metric, Whitworth, as well
> > as a
>
> > > sub-miniature version in the very popular RCH measurement standard.
> > > All except the latter at no additonal charge.
>
> > *>With no demand whatsoever, the MKIV
>
> > > should be available for ADS-B any day now.
>
> > All well and nice, but the big question *this winter is whether it
> > will be compatible with PowerFlarm.
>
> > -Paul
>
> if i go to a contest will rental MKIV's be available?

Sorry Tony,
As an unofficial beta tester for the MK IV Yaw String, I must report
that it suffers catastrophic failure when regressed beyond the Y2K
dateline. Further, although some minor anomolies have been noted when
crossing either the equator, or the international dateline, the
effects are quite small, and should pose no risk to the experienced
glider pilot.

[CLewis95]

I heard that there was a firmware upgrade that solved the Y2K
problem. All current units sold should not have a problem with this.

Curt Lewis - 95

On Dec 14, 10:55*am, Grider Pirate > wrote:
> On Dec 14, 8:44*am, Tony > wrote:
>
>
>
>
>
> > On Dec 14, 10:41*am, sisu1a > wrote:
>
> > > *> Why yes, the MKIV is available in SAE, Metric, Whitworth, as well
> > > as a
>
> > > > sub-miniature version in the very popular RCH measurement standard.
> > > > All except the latter at no additonal charge.
>
> > > *>With no demand whatsoever, the MKIV
>
> > > > should be available for ADS-B any day now.
>
> > > All well and nice, but the big question *this winter is whether it
> > > will be compatible with PowerFlarm.
>
> > > -Paul
>
> > if i go to a contest will rental MKIV's be available?
>
> Sorry Tony,
> * As an unofficial beta tester for the MK IV Yaw String, I must report
> that it suffers catastrophic failure when regressed beyond the Y2K
> dateline. *Further, although some minor anomolies have been noted when
> crossing either the equator, or the international dateline, the
> effects are quite small, and should pose no risk to the experienced
> glider pilot.- Hide quoted text -
>
> - Show quoted text -

[CLewis95]

Note also that the Current Drain on the MkIV Model is substantially
less than on the early Beta Models.
Curt

On Dec 14, 11:14*am, CLewis95 > wrote:
> I heard that there was a firmware upgrade that solved the Y2K
> problem. *All current units sold should not have a problem with this.
>
> Curt Lewis - 95
>
> On Dec 14, 10:55*am, Grider Pirate > wrote:
>
>
>
> > On Dec 14, 8:44*am, Tony > wrote:
>
> > > On Dec 14, 10:41*am, sisu1a > wrote:
>
> > > > *> Why yes, the MKIV is available in SAE, Metric, Whitworth, as well
> > > > as a
>
> > > > > sub-miniature version in the very popular RCH measurement standard.
> > > > > All except the latter at no additonal charge.
>
> > > > *>With no demand whatsoever, the MKIV
>
> > > > > should be available for ADS-B any day now.
>
> > > > All well and nice, but the big question *this winter is whether it
> > > > will be compatible with PowerFlarm.
>
> > > > -Paul
>
> > > if i go to a contest will rental MKIV's be available?
>
> > Sorry Tony,
> > * As an unofficial beta tester for the MK IV Yaw String, I must report
> > that it suffers catastrophic failure when regressed beyond the Y2K
> > dateline. *Further, although some minor anomolies have been noted when
> > crossing either the equator, or the international dateline, the
> > effects are quite small, and should pose no risk to the experienced
> > glider pilot.- Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -

[Mike Ash]

In article
>,
bumper > wrote:

> On Dec 13, 2:35*pm, Ralph Jones > wrote:
> > On Mon, 13 Dec 2010 08:02:33 -0800 (PST), bumper >
> > wrote:
> >
> > Is it metric?
> >
> > rj
>
> Why yes, the MKIV is available in SAE, Metric, Whitworth, as well as a
> sub-miniature version in the very popular RCH measurement standard.
> All except the latter at no additonal charge.

Is the metric version marked in the mks system or the cgs system?

--
Mike Ash
Radio Free Earth
Broadcasting from our climate-controlled studios deep inside the Moon

[jcarlyle]

With all the technology Bumper has, I'm sure he's using SI for the
metric version.

-John

On Dec 14, 12:49 pm, Mike Ash > wrote:
> In article
> >,
>
> bumper > wrote:
> > Why yes, the MKIV is available in SAE, Metric, Whitworth, as well as a
> > sub-miniature version in the very popular RCH measurement standard.
> > All except the latter at no additonal charge.
>
> Is the metric version marked in the mks system or the cgs system?

[Don Johnstone[_4_]]

In order that the MkIV can be used in Europe, under EASA rules I have
prepared a manual which will be mandatory. The manual will cost $1000 and
will expire anually, the renewal cost will be an extortionate sum yet to
be determined. The manual will be renewed free if you pay me an even more
extortionate sum of money for a service agreement, but you will at least
be able to get spares. No service agreement, no spares. I will be trying
to persuade EASA to make sure that you will not be able to use your MkIV
unless you have paid me the money. I will ignore any customers who
complain, I just want your money.
Oops, sorry I should not have tried to do this until you have actually
bought and paid for the item.


At 19:13 14 December 2010, jcarlyle wrote:
>With all the technology Bumper has, I'm sure he's using SI for the
>metric version.
>
>-John
>
>On Dec 14, 12:49 pm, Mike Ash wrote:
>> In article
>> ,
>>
>> bumper wrote:
>> > Why yes, the MKIV is available in SAE, Metric, Whitworth, as well as
a
>> > sub-miniature version in the very popular RCH measurement standard.
>> > All except the latter at no additonal charge.
>>
>> Is the metric version marked in the mks system or the cgs system?
>

[AGL]

Would this be recommended for a first glider or would you have to be
retrained if you used one on a glass ship?

[Whiskey Delta]

On Dec 14, 9:43*pm, AGL > wrote:
> Would this be recommended for a first glider or would you have to be
> retrained if you used one on a glass ship?

I was considering purchase of an MKII since the MKIV is not in my
budget.
I have been told that they handle pretty well and are less susceptible
to performance degradation when wet than the newer models. However,
they were created before the movement toward safer building design and
materials. Now I am not too sure. Apparently the MKIV, with its
newer design, handles just as well if not better than the MKII, really
no more skill needed and may well do nicely for a first one. Since it
holds its value so well, I might be able to justify the significant
cost difference since I won't have to do as much maintenance and
really once purchased the overall cost of ownership would be the same
for both. Plus I won't outgrow this one as quickly! Ok, I think the
MKIV is definitely the way to go.

[Mike[_28_]]

A quick search of ebay turned up what appears to be the identical
model for less than half the price. The seller is located in China,
however, and when shipping and import duties are added in it isn't
such a great deal. Rumor has it that the yarn is 100% wool from
inferior sheep. Buyer beware.

[Richard[_9_]]

On Dec 17, 5:22*am, Mike > wrote:
> A quick search of ebay turned up what appears to be the identical
> model for less than half the price. The seller is located in China,
> however, and when shipping and import duties are added in it isn't
> such a great deal. Rumor has it that the yarn is 100% wool from
> inferior sheep. Buyer beware.

On my website I have bundled the MKIV, with Kind Russian Girls and
Chrome Azzaro Cologne including a picture of a DG1000.

The Cologne smells like Dirty old men hanging around high hot desert
airports.

Priceless.

Richard

[brianDG303[_2_]]

On Dec 17, 5:22*am, Mike > wrote:
> A quick search of ebay turned up what appears to be the identical
> model for less than half the price. The seller is located in China,
> however, and when shipping and import duties are added in it isn't
> such a great deal. Rumor has it that the yarn is 100% wool from
> inferior sheep. Buyer beware.

Mike,
I have been using the off-shore version for the last season and it is
actually much better than the domestic (Bumper) version. For one
thing, it uses Virtual Yarn, which is simply printed on a clear
plastic sticker. That way it is not affected by the air stream which
as you know has an annoying tendency to make the real yarn flop around
and lose alignment with the fuselage.

[Ray[_6_]]

I'm going to wait for the -A model (small cross section / low drag), though
one should be aware it's suitable for use only by eagle-eyed pilots.
Ray

"brianDG303" > wrote in message
...
On Dec 17, 5:22 am, Mike > wrote:
> A quick search of ebay turned up what appears to be the identical
> model for less than half the price. The seller is located in China,
> however, and when shipping and import duties are added in it isn't
> such a great deal. Rumor has it that the yarn is 100% wool from
> inferior sheep. Buyer beware.

Mike,
I have been using the off-shore version for the last season and it is
actually much better than the domestic (Bumper) version. For one
thing, it uses Virtual Yarn, which is simply printed on a clear
plastic sticker. That way it is not affected by the air stream which
as you know has an annoying tendency to make the real yarn flop around
and lose alignment with the fuselage.

[bumper[_4_]]

On Monday, December 13, 2010 8:02:33 AM UTC-8, bumper wrote:
> For your glider friends: inexpensive, used often, and appreciated.
> The MKIV yaw string, with it's clear tubulator base, is one of the
> least expensive "right up front" toys you can buy for a glider! Just
> $12 USD, free shipping to US and only $1 international shipping.
>
> bumper
> zz
> Minden, NV
> for more info or to order: bumperjm at g mail dot com

An old thread (with some clever posts!) . . .

Price has increased a little over the years, at $15* the MKIV "high tech" yaw string remains one of the nicest inexpensive toys you can buy for your glider or give to your friends. The MKIV has been designed to fit unobtrusively in most Christmas cards and may increase their L/D.

* Free shipping to US, add $1 for international.

bumper
bumperjm at g mail d o t com

[[email protected]]

so - here I am laughing out loud in my really quit office early in the morning - then I had to try to explain to 2 co workers what was so funny - Soaring in unique ;)

Merry Christmas! :)

WH

[[email protected]]

On Friday, December 5, 2014 7:03:36 AM UTC-6, wrote:
> so - here I am laughing out loud in my really quit office early in the morning - then I had to try to explain to 2 co workers what was so funny - Soaring in unique ;)
>
> Merry Christmas! :)
>
> WH

When buying some MKIVs from Bumper years ago he convinced me not to go with the "natural fiber" that I wanted (wool) but to go synthetic. As a result, and thanks to my meticulous following of his page-long installation plan, my initial yellow yaw string is still yawing. Business advice to Bumper: go with something that gives the so admired 'frazzled look' after a year and needs to be replaced ever so often.
Herb, J7

[Papa3[_2_]]

On Friday, December 5, 2014 8:03:36 AM UTC-5, wrote:
> so - here I am laughing out loud in my really quit office early in the morning - then I had to try to explain to 2 co workers what was so funny - Soaring in unique ;)
>
> Merry Christmas! :)
>
> WH

Same here. Just spit a couple of ounces of Dunkin Donuts coffee on my laptop screen. Which leads to a new product opportunity for Bumper - The Mk1 screen squeegee. Available in desktop, laptop, tablet, and smartphone sizes. Compatible with most major moving map displays.

P3

[[email protected]]

Buyer beware: A few years ago Bumper advertised the MK-III at a discount to those who couldn't fit the fancy new MK-IV in their budget. I inquired if he was borrowing the "planned obsolescence" marketing scheme from the Big-3 auto makers of the 60's. After several hours of low tech interrogation techniques he finally confessed that this was a possibility. So be warned, this charlatan will do anything to peddle his goods.
~Barny

Merry Christmas Bumper!

[[email protected]]

Bumper: could you send me the MKIV calibrated for the Southern Hemisphere? Really don't want it indicating a slip when I'm really skidding;-)

[bumper[_4_]]

On Friday, December 5, 2014 6:25:35 PM UTC-8, wrote:
> Bumper: could you send me the MKIV calibrated for the Southern Hemisphere? Really don't want it indicating a slip when I'm really skidding;-)

Of course you can send your MKIV in for a complete calibration for only $15.. This includes, gps battery replacement, internal clock reset, resealing, and testing in our wind tunnel to assure compliance with all applicable standards. As a service to our existing customers, a reboot can also be done in the field as explained below.


True, the MKIV, though rugged, is sensitive and will naturally take a "set" when used for long periods of time on just one side of the equator. This set is due to the polarity of the E-field and H-field and back as$ward Coriolis effect down there (or up there if you're already down there).

Note to Jim Payne: Don't worry about any of this until you head back "up there", I took the liberty pre-calibrating your MKIV's for down there in Argentina.

While it is possible to weaken the offending backwards fields by turning off the master switch, a more positive and entertaining method of rebooting the MKIV is to momentarily reverse polarity of your avionics battery connector (don't be alarmed, some sparking and a little smoke is acceptable and a good sign your battery is not dead). Note that the principle behind this fix is similar to turning off the master switch, only more positive and, um, "permanent". After this reboot, you may find your trusty MKIV is one of the few remaining instruments in your ship that still functions properly . . . a glowing testament to how truly rugged the MKIV is.

bumper

[bumper[_4_]]

On Friday, December 5, 2014 5:42:26 PM UTC-8, wrote:
> Buyer beware: A few years ago Bumper advertised the MK-III at a discount to those who couldn't fit the fancy new MK-IV in their budget. I inquired if he was borrowing the "planned obsolescence" marketing scheme from the Big-3 auto makers of the 60's. After several hours of low tech interrogation techniques he finally confessed that this was a possibility. So be warned, this charlatan will do anything to peddle his goods.
> ~Barny
>
> Merry Christmas Bumper!

"Charlatan" huh? You're still tweaked 'cause I convinced you the MKIV would double your L/D, aren't you?

bumper