Today's Message Index:
----------------------
1. 02:16 AM - Re: Re: slingshot thrust line (Pat Ladd)
2. 02:47 AM - slingshot shims (Ted Cowan)
3. 06:02 AM - Re: thrust line (Thom Riddle)
4. 06:16 AM - Re: Sling Shot engine shims (Thom Riddle)
5. 07:05 AM - Re: Re: slingshot thrust line (Pat Ladd)
6. 11:01 AM - Re: Re: Sling Shot engine shims (Richard Girard)
7. 11:21 AM - Re: Sling Shot engine shims (Thom Riddle)
8. 07:44 PM - Re: slingshot thrust line (Richard Pike)
9. 10:51 PM - Re: Sport Pilot license (dutrac)
Message 1
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Subject: | Re: slingshot thrust line |
Not many proplems with that wheel way out the back.>>
Hi,
I had none.. Aftre coming from gliding the Thruster was the machine I
trained on and didn`t know that threepointing was supposed to be difficult.
The Challenger was easier though although I always landed with the weight
firmly on the mains and the nose held high
Cheers
Pat
Message 2
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Only thing I want to say is the shimming of the motor mounts is ONLY for the
SS. The SS will fly okay without problems without them but -- it makes for
a very heavy stick. Haucks experiences with it were great and my firsts
were also great but it was a very heavy stick compared to what you have when
you shift it up in back. Made all the difference in the world. I used to
take off with most all power and it would torque like crazy. I learned not
to full power it until it was almost airborne. Where the difference is in
say, a fly-by and putting power in or aborting a landing or if for some
reason you MUST climb fast from the ground. Why fight the extra stick
pressure. I will say this again, this configuration is ONLY FOR THE SS, not
the Mks or firestars. Last word on the subject. Ted Cowan, SS 912 UL zoom
zoom okay, one more thing. I cannot imagine cutting the boom of an SS. It
is more than a package to handle being as short as it is. I cannot fathom
what it would handle like with a nose wheel and shorter boom. ouch.
Message 3
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Ted,
I don't know why you are taking offense. When I first brought up the subject, you
graciously responded by saying that you added 7/8" worth of washers. And I
much appreciate that information which confirmed my suspicion that my engine was
pointing up way too high.
I then asked you the same question in terms of the ANGLE between the thrust line
and bottom of the wing, but you didn't respond to that. Not that you have any
obligation to, but you didn't, so I asked for this ANGLE of others on the Kolb
list, in particular others with Jabiru power. And guess what, I still don't
have that answer. I have seen photos showing what it looks like and ALL of them
have the thrust line intersecting a forward extension of the bottom of the
wing plane. This further confirms that mounting the engine flat on the standard
motor mount on the Slingshot is not the best solution but I still don't know
what is the preferred or most common or correct intersection angle for a Slingshot
or any Kolb for that matter.
Again, nobody is obligated to answer this question and perhaps the reason is that
nobody has that information, except Jack Hart for his Firefly.
Again, Ted. I am sorry if you took offense, none was intended. I am sure your 7/8"
washers works well and I will be aiming for that with the beveled shims. When
I go to the hangar next I'll take the measurements and come up with the answer
I'm looking for using the 7/8" and a little trigonometry. And I will post
that angle for others who may be interested. I suppose I should have done that
to begin with after you gave me the 7/8" figure (which I completely trust is
the right answer) and not bothered the list with it.
--------
Thom Riddle
Buffalo, NY (9G0)
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x32
Everyone is entitled to his own opinion, but not his own facts.
Daniel Patrick Moynihan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=317190#317190
Message 4
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Subject: | Re: Sling Shot engine shims |
Rick,
I didn't read your post until I read Ted's most recent post so now I know the ANGLE
of Ted's Slingshot thrust line. It surprises me that it is not closer to
the angle of the horizontal stabilizer.
Thanks for doing my job for me. Did you happen to take the measurements of the
size of the mount pads? If not, you needn't bother as I will be going to the hangar
Thursday and measure those as well. It is possible, but not likely, that
the pads are a different size on the Slingshot than on your MkIII. Once I confirm
the pad size I'll let you know.
Thanks again for everyone's help on this.
--------
Thom Riddle
Buffalo, NY (9G0)
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x32
Everyone is entitled to his own opinion, but not his own facts.
Daniel Patrick Moynihan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=317194#317194
Message 5
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Subject: | Re: slingshot thrust line |
put a training wheel on it? :)
Dana,
love it...training wheel heh heh
I bought a Kolb because I fell in love with the design about 3 airplanes
back. Then the opportunity came about. I had been in a Eurostar
partnership which dissolved and I found myself with about 20K not
earmarked for other things.
This coincided with a distributor picking up the import rights from
another company who had decided not to sell |Kolbs any more.
So the Kolb became available in the UK at the time I had some cash.
Having trained on the taildragger Thruster the thought of going back to
a rear wheel after the trike u/c Challenger was not a problem. In fact,
once I got back into the habit, and with differential footbrakes it was
nearly as easy to handle as the trike u/c.
Although I am well pleased with my Mk111Xtra I cannot forget the ease of
ground handling which goes with a `training wheel`. No problems with
weathercocking or nosing over if I braked too hard and very little
trouble keeping straight even if the throttle was pushed flat out from a
standing start. No different handling on grass or tarmac even in a brisk
sidewind.
Must be a good reason why the military went for a wheel up front after
about the DC3 and the B-17.
Training wheel.......
Cheers
Pat
Message 6
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Subject: | Re: Sling Shot engine shims |
Thom, The pads are a bit over 2.5" fore to aft. The distance between
mounting holes is 1.75" (taken from a spare mount). I can get 2 1/2" wide
bar stock at a local supplier in both 1" and 1/4" thick. The smaller size
for the front wil I figure I'll put a 1.375 hole in the middle of the shims
just to take a little weight out of them. I picked the size only because I
have a cut down drill of that size that has the shank ground to 3/4" so I
can run it right out of a collet and it is short enough that I don't have t
o
get all aerobic cranking the table up and down.
I went back and dimensioned the drawing so you can compare to your mount
just to be sure. Turns out I had the accuracy turned down a bit to much on
angular measurements when I said it is spot on at 4 degrees, but I doubt
that little extra will make a big difference.
Rick
On Wed, Oct 27, 2010 at 8:14 AM, Thom Riddle <riddletr@gmail.com> wrote:
>
> Rick,
>
> I didn't read your post until I read Ted's most recent post so now I know
> the ANGLE of Ted's Slingshot thrust line. It surprises me that it is not
> closer to the angle of the horizontal stabilizer.
>
> Thanks for doing my job for me. Did you happen to take the measurements o
f
> the size of the mount pads? If not, you needn't bother as I will be going
to
> the hangar Thursday and measure those as well. It is possible, but not
> likely, that the pads are a different size on the Slingshot than on your
> MkIII. Once I confirm the pad size I'll let you know.
>
> Thanks again for everyone's help on this.
>
> --------
> Thom Riddle
> Buffalo, NY (9G0)
> Kolb Slingshot SS-021
> Jabiru 2200A #1574
> Tennessee Prop 64x32
>
>
> =93Everyone is entitled to his own opinion, but not his own facts.=94
> Daniel Patrick Moynihan
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=317194#317194
>
>
===========
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>
>
--
Zulu Delta
Kolb Mk IIIC
582 Gray head
4.00 C gearbox
3 blade WD
Thanks, Homer GBYM
It is not bigotry to be certain we are right; but it is bigotry to be unabl
e
to imagine how we might possibly have gone wrong.
- G.K. Chesterton
Message 7
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Subject: | Re: Sling Shot engine shims |
Thanks again, Rick.
Assuming my motor mount is identical to the one you measured, that should work
fine the way you described it. Let me make sure tomorrow that my motor mount is
the same and I'll give you the go ahead.
I really appreciate your help with this.
--------
Thom Riddle
Buffalo, NY (9G0)
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x32
Everyone is entitled to his own opinion, but not his own facts.
Daniel Patrick Moynihan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=317233#317233
Message 8
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Subject: | Re: slingshot thrust line |
Ok, for those of you that think a MKIII would be better with a nose (training)
wheel, here's your chance to put your money where your mouth is. I have for your
inspection a Gen U Wine nose wheel for a MKIII, $15 for the trouble to box
it up plus what ever shipping turns out to be.
All 4130 steel construction, made from Gen U Wine cub jury struts plus what ever
else I had handy. Built in pitot and static air tubes, already calibrated. Remove
6 of the the screws that attach the nose cone and screw it in place. Non-swiveling,
so you no longer have to worry about running off the runway.
The only thing it is good for is it allows you to do full throttle run ups with
two aboard without having to worry about standing the airplane on it's nose.
Why did I make it? I don't remember, but as Butch Cassidy said to Sundance Kid
in the movie, "It seemed like a good idea at the time."
Richard Pike
MKIII N420P (420ldPoops)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=317278#317278
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Message 9
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Subject: | Re: Sport Pilot license |
Just thought I would post a follow up to this discussion.
I have now completed all of my training towards Sport Pilot and am scheduled to
take my check ride this weekend. All in all, I have probably spent around $1800
including gas to and from lessons which usually runs about $40 per trip. I
have to say that I have a somewhat more positive attitude about training than
I had at the beginning. It was well worth the money and I would encourage anyone
else in the same position to embrace the opportunity and just go with it. The
knowledge I have gained is far more than I expected.
This was a learning experience for my instructor as well. He had never transitioned
anyone from ultralight to sport, so we both had to figure out habits I had
learned from ultralighting and then how to correct them.
So long story short... Training was well worth the money.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=317289#317289
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