MK IV yaw string installation ....

Tried to send an email to Bumper to get instructions for the MK IV yaw
string installation. The email address on the package and what I have
by searching RAS bounces.

Anyone have the instructions or a valid email address for Bumper?

Thanks in advance

Anyone have the instructions or a valid email address for Bumper?

Thanks in advance


his new email address:

I have a copy somewhere I could scan/send, but it's kinda long
winded...

It just tells you to make a paper template of the V shape and use that
to locate the string before sticking it on. I drew a centerline on my
V template to help with alignment. He also recommends using a piece of
string or yarn going from tip of nose to center tip of tail to
establish the actual centerline down the canopy (look at string from
front first, adjust as necessary) so you get it on centered. Carefully
tape template on center at desired fore/aft position and then install
yawstring.

-Paul

On Jun 6, 7:25*am, Ron Gleason wrote:
Tried to send an email to Bumper to get instructions for the MK IV yaw
string installation. *The email address on the package and what I have
by searching RAS bounces.

Anyone have the instructions or a valid email address for Bumper?

Thanks in advance

Hi Ron:

How goes it? I haven't had time to peruse ras for awhile but have
spend much of the weekend recuperating from a nasty biking accident.
Re yaw strings and slipping turns, here's a useful old thread from
this newsgroup, focus on about message 26 onward:

http://groups.google.com/group/rec.a...tring+&lnk=nl&

Best Regards & Hello to Elsa,

Gary Osoba

Ron,

John and I just traded a few emails. His address is


Warren

On Jun 6, 9:32*am, Warren wrote:
Ron,

John and I just traded a few emails. His address is


Warren

Thanks to all. I have the instructions and bumpers new email address

Gentlemen,

Email addresses posted in network news groups are often obfuscated so
that network idiots don't pick them up and flood you with spam. I
read RAS via Google which does this to all the email addresses (and
something similar to web site addresses).

The end result is that the email address you mention above for Bumper
is impossible to use.

The alternative is to use something like "johnatyahoo.com" -
hopefully it is obvious to substitute the "at" with an "@" sign to
get a legitimate email address.

Thanks! John

Sorry for the confusion with email addresses. Looks like it's going to
happen again, as Verizon is dumping customers in some states
(including NV). Next time I think I'll use an address not tied to an
ISP.

For now, though, it's still bumperm at verizon dot com

Not to worried about bots or idiots picking that up as it's only good
for another month or two. I'll post the new address here, as well as
sending an email to my contact list.

Yup, the installation instructions a bit long, one full page . . . I
have a free replacement policy even if you goof on the install, so I
want to make sure you don't (g).

all the best and thank you for being my customers,

bumper
zz
Minden

On 6/6/2010 7:27 PM, bumper wrote:
Sorry for the confusion with email addresses. Looks like it's going to
happen again, as Verizon is dumping customers in some states
(including NV). Next time I think I'll use an address not tied to an
ISP.

For now, though, it's still bumperm at verizon dot com

It's really bumperm at verizon dot NET. Since he is a recent Verizon
customer, we'll forgive him; unfortunately, Verizon is going to dump him
as a customer before he has a chance to remember it! They are dumping
me, too, so I'm also looking for a permanent, non-ISP related email
address. And, as long as I have change email addresses, I might as well
look at other ISPs, and not just accept the one Verizon is selling us to
(Frontier.com).

--
Eric Greenwell - Washington State, USA (netto to net to email me)

- "Transponders in Sailplanes - Feb/2010" also ADS-B, PCAS, Flarm http://tinyurl.com/yb3xywl

- "A Guide to Self-launching Sailplane Operation Mar/2004" Much of what you need to know tinyurl.com/yfs7tnz

You don't need Bumper to install the Mark IV...anyone can do it.

Simlpy drill a 1/2 inch hole in your canopy and place a 1/2 diameter
stove bolt in the hole. These are available on the aviation aisle at
Home Depot. Put a nylok type nut on it ...leave it loose for now. Wrap
the Mark IV around the bolt several times and secure it with a standard
stevadore's Fernortner Hitch. Now carefully torque the stove bolt to
4500 Foot Pounds. Don't over torque. Finally, mix up a batch of Shell
Epon 925 aviation epoxy and drizzle this goo on the bolt. Don't get the
epoxy on the string. If you do epoxy the string make sure it is lined up
on the longitudinal axis...you will feel a whole lot better about your
flying. Next place 4 pounds of lead in the tail to re-balance the
glider. Now get your log book out and log the install. Don't forget to
have the glider re-weighed to verify proper balance.

That's it. See, it's easy and I am sure that Bumper would approve of
this procedure.

Paul
ZZ

On 6/6/2010 7:25 AM, Ron Gleason wrote:
Tried to send an email to Bumper to get instructions for the MK IV yaw
string installation. The email address on the package and what I have
by searching RAS bounces.

Anyone have the instructions or a valid email address for Bumper?

Thanks in advance

On Jun 6, 10:46*pm, ZZ wrote:
You don't need Bumper to install the Mark IV...anyone can do it.

Simlpy drill a 1/2 inch hole in your canopy and place a 1/2 diameter
stove bolt in the hole. These are available on the aviation aisle at
Home Depot. Put a nylok type nut on it ...leave it loose for now. Wrap
the Mark IV around the bolt several times and secure it with a standard
stevadore's Fernortner Hitch. Now carefully torque the stove bolt to
4500 Foot Pounds. Don't over torque. Finally, mix up a batch of Shell
Epon 925 aviation epoxy and drizzle this goo on the bolt. Don't get the
epoxy on the string. If you do epoxy the string make sure it is lined up
on the longitudinal axis...you will feel a whole lot better about your
flying. Next place 4 pounds of lead in the tail to re-balance the
glider. Now get your log book out and log the install. Don't forget to
have the glider re-weighed to verify proper balance.

That's it. See, it's easy and I am sure that Bumper would approve of
this procedure.

Paul
ZZ

By posting your free DIY instructions for your heavy duty yaw string,
you've likey desimated 12 years of development and labor that's gone
into the, relatively speaking, delicate and frangible MKIV. How am I
supposed to compete with that? BTW, you forgot to mention your yaw
string mounting bolt should easily accept a Tost hook.This will
quickly become the accepted and preferred tow hook position for all
gliders as the pilot can easily sight right down the tow line to
positively, absolutely stay in position behind the tow plane. And if
the tuggie feeds you the rope 'cause he doesn't approve, "What the
heck!" it's just another big, very well damped, yaw string streaming
back.

bumper
bumperm at verizon dot net (thanks Eric)