Today's Message Index:
----------------------
1. 07:05 AM - Wing Spare Angle (alsmith)
2. 07:07 AM - CH 650 Propeller Selection (alsmith)
3. 07:24 AM - Re: CH 650 Propeller Selection (Jim Belcher)
4. 07:37 AM - Re: CH 650 Propeller Selection (alsmith)
5. 08:24 AM - Re: Wing Spare Angle (Bryan Martin)
6. 07:09 PM - Re: Wing Spare Angle (aussiech650)
Message 1
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| Subject: | Wing Spare Angle |
We are building a CH 650.
Drawing 6B14 shows the Spar angle of 83 Degrees. which is how we set ours up.
Drawing 6W8 for the wing shows the Spar angle of 81 Degrees.
It sounds like we should use the 83 Degrees angle.
Input is appreciated.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267566#267566
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| Subject: | CH 650 Propeller Selection |
We are building a CH 650 and will be installing a O-200A
Engine.
What are others installing by brand and Size?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267567#267567
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| Subject: | Re: CH 650 Propeller Selection |
On Monday 12 October 2009 09:07, alsmith wrote:
>
> We are building a CH 650 and will be installing a O-200A
> Engine.
>
> What are others installing by brand and Size?
601XL, O200A.
I'll be glad to explain my tradeoffs and reasoning, but it would probably be
better to do it in a private email. There are some pretty adamant supporters
of the various choices, and someone might get offended.
My reasons may not apply to others. Email me directly if you want my
reasoning.
============================================
Do not archive.
============================================
Jim B Belcher
BS, MS Physics, Math, Computer Science
A&P/IA
Retired aerospace technical manager
Mathematics and alcohol do not mix.
Do not drink and derive.
============================================
Message 4
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| Subject: | Re: CH 650 Propeller Selection |
PM sent
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267580#267580
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| Subject: | Re: Wing Spare Angle |
My 601XL plans show the center spar set at 81 degrees to the
horizontal, which puts it 78 degrees to the cabin floor. The cabin
floor slopes up 3 degrees from the horizontal. The lower flanges on
the center spar are set at 78 degrees for the front flange and 102
degrees for the rear. These are the same angles used on the wing spars.
The 650 uses the same wings set at a slightly greater angle of
incidence, so the 83 degrees sounds about right. That would put the
center spar at 80 degrees to the cabin floor. The wing spar should be
the same as the 601XL.
On Oct 12, 2009, at 10:04 AM, alsmith wrote:
> >
>
> We are building a CH 650.
>
> Drawing 6B14 shows the Spar angle of 83 Degrees. which is how we set
> ours up.
>
> Drawing 6W8 for the wing shows the Spar angle of 81 Degrees.
>
> It sounds like we should use the 83 Degrees angle.
>
--
Bryan Martin
N61BM, CH 601 XL,
RAM Subaru, Stratus redrive.
do not archive.
Message 6
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| Subject: | Re: Wing Spare Angle |
I am also building the 650 but I originally started building the 601 so I do have
both sets of plans.
The error I believe is in the notation on the 650 plans 6-W-8 that says "To install
top rear skin: support skeleton, use spar template from 6-B-13 to hold the
spar at 9 degrees............." The template that they are referring to is actually
on 6-B-14 (no big deal) but it is 83 degrees and would not be suitable
for this purpose, you will need to make a new template at 81 degrees. This is
because the angle of the spar in relation to the wing rib has not changed from
the 601 to the 650 so the 81 degrees here remains correct it is only the angle
of the wing spar in relation to the fuselage that has changed, hence the increased
incidence by 2 degrees and the lower attachment position for the rear
spar. I will advise ZAC of the issue with the drawing 6-W-8.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=267685#267685
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