Today's Message Index:
----------------------
1. 05:37 AM - 701 one-piece strut blues (jf3sb)
2. 06:10 AM - Re: Gross weight? (mcjon77)
3. 06:31 AM - Re: 701 one-piece strut blues (BokKat)
4. 06:47 AM - Re: Re: Gross weight? (Larry)
5. 06:54 AM - Re: 701 one-piece strut blues (John Bolding)
6. 07:23 AM - Re: Ill-fitting One-piece Strut (Zed Smith)
7. 07:46 AM - Chris Lewis - Please contact me off line (Cannon, Walt)
8. 09:10 AM - Re: 701 one-piece strut blues (Gordon)
9. 09:23 AM - Re: 701 one-piece strut blues (Tony & Peggy Pierce)
10. 10:43 AM - Re: 701 one-piece strut blues (billmileski)
11. 11:21 AM - Re: Re: 701 one-piece strut blues (BokKat)
12. 11:38 AM - Re: Re: Zenith CH750 Detail Pictures (Bob Collins)
13. 06:17 PM - Re: Zenith CH750 Detail Pictures (rbjjr)
14. 08:09 PM - Re: Re: Zenith CH750 Detail Pictures (Bob Collins)
Message 1
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| Subject: | 701 one-piece strut blues |
Ladies/Gents:
Started hanging the wings on the 701 fuselage last week. All went perfectly until
I got to the front struts. Mine are the one-piece factory units and like
a lot of others on the list found, the angle of the tabs on the end are off by
maybe 4 degrees. Just enough I could torque it on with a pipe wrench, but too
far off to build it that way. Exactly the same case on both wings, as if they
needed a left-side and right-side version. The back struts fit -perfectly-.
Called Zenith and their opinion is that the misalignment is caused by slight misplacement
of the landing gear fitting. Maybe, but I normally know it when I've
dorked up a part, plus that would have messed up the back struts too. Anyway,
I'm out over $100 buck for the 2-piece conversion fittings.
Does anyone know of anybody whose one-piece front strut fittings went on without
having to heat/torque/convert etc them to fit?
John Flavin
Olathe KS
Still looking for that good low-hours cheap 912S...
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 8690#208690
Message 2
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| Subject: | Re: Gross weight? |
That 75hp Revmaster is basiclly a 2180cc Type 1 VW, correct? If so, you may want
to look into getting a redrive from Valley Engineering or Great Plains Aviation
Service (GPAS sells the Valley Engineering Redrive) for about $1500. It
will allow you to swing a much bigger prop and also increase your hp to 100-105hp.
Valley Engineering even sells a complete firewall forward package for the
701, although since you already have the engine you wont need it.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 8697#208697
Message 3
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| Subject: | Re: 701 one-piece strut blues |
Mine went on without a problem. I had a one piece strut, although I've seen
some two piece ones at Oshkosh, and I think also on the "Homebuilt Help"
series.
I always wished that they had come with some kind of an adjustable end on
them. Once you drill the holes they are fixed, so better drill the holes
correct the first time!
----- Original Message -----
From: "jf3sb" <jf3sb@yahoo.com>
Sent: Tuesday, October 14, 2008 7:37 AM
Subject: Zenith701801-List: 701 one-piece strut blues
>
> Ladies/Gents:
>
> Started hanging the wings on the 701 fuselage last week. All went
> perfectly until I got to the front struts. Mine are the one-piece factory
> units and like a lot of others on the list found, the angle of the tabs on
> the end are off by maybe 4 degrees. Just enough I could torque it on with
> a pipe wrench, but too far off to build it that way. Exactly the same
> case on both wings, as if they needed a left-side and right-side version.
> The back struts fit -perfectly-.
>
> Called Zenith and their opinion is that the misalignment is caused by
> slight misplacement of the landing gear fitting. Maybe, but I normally
> know it when I've dorked up a part, plus that would have messed up the
> back struts too. Anyway, I'm out over $100 buck for the 2-piece
> conversion fittings.
>
> Does anyone know of anybody whose one-piece front strut fittings went on
> without having to heat/torque/convert etc them to fit?
>
> John Flavin
> Olathe KS
> Still looking for that good low-hours cheap 912S...
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 8690#208690
>
>
>
Message 4
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| Subject: | Re: Gross weight? |
And, that will bump you about 20+ hp. Of the two I like Valley's best,
they use serpentine belts with a back side slack pulley. It allows
compensation for the power pulses. A cog belt that GP uses is almost
the same as having a direct drive, no give at all. On the other hand
the VW set at low compression doesn't have bad pulses anyway. You
could live with it, but why should you?
Larry, N1345L
mcjon77 wrote:
>
> That 75hp Revmaster is basiclly a 2180cc Type 1 VW, correct? If so, you may
want to look into getting a redrive from Valley Engineering or Great Plains Aviation
Service (GPAS sells the Valley Engineering Redrive) for about $1500. It
will allow you to swing a much bigger prop and also increase your hp to 100-105hp.
Valley Engineering even sells a complete firewall forward package for
the 701, although since you already have the engine you wont need it.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 8697#208697
>
>
>
> ------------------------------------------------------------------------
>
>
> Checked by AVG - http://www.avg.com
>
>
Message 5
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| Subject: | Re: 701 one-piece strut blues |
Just thinking out loud here but if you're out only about 4 degrees you might
consider getting things bolted up under strain and heating the strut close
to one end until strain is relieved. TWO torches would be much better. When
you consider that the fittings were WELDED on to each end....... well you
get the idea, I'd relieve the strain over several inches AT ONCE so as to
put as little a twist over as long a section as practical. SUPPORT the wing
while you do this so you don't have to fix ANOTHER problem. My 2 cents and
overpriced at that.
John
----- Original Message -----
From: "BokKat" <bobkat@btinet.net>
Sent: Tuesday, October 14, 2008 8:30 AM
Subject: Re: Zenith701801-List: 701 one-piece strut blues
>
> Mine went on without a problem. I had a one piece strut, although I've
> seen some two piece ones at Oshkosh, and I think also on the "Homebuilt
> Help" series.
> I always wished that they had come with some kind of an adjustable end on
> them. Once you drill the holes they are fixed, so better drill the holes
> correct the first time!
> ----- Original Message -----
> From: "jf3sb" <jf3sb@yahoo.com>
> To: <zenith701801-list@matronics.com>
> Sent: Tuesday, October 14, 2008 7:37 AM
> Subject: Zenith701801-List: 701 one-piece strut blues
>
>
>>
>> Ladies/Gents:
>>
>> Started hanging the wings on the 701 fuselage last week. All went
>> perfectly until I got to the front struts. Mine are the one-piece
>> factory units and like a lot of others on the list found, the angle of
>> the tabs on the end are off by maybe 4 degrees. Just enough I could
>> torque it on with a pipe wrench, but too far off to build it that way.
>> Exactly the same case on both wings, as if they needed a left-side and
>> right-side version. The back struts fit -perfectly-.
>>
>> Called Zenith and their opinion is that the misalignment is caused by
>> slight misplacement of the landing gear fitting. Maybe, but I normally
>> know it when I've dorked up a part, plus that would have messed up the
>> back struts too. Anyway, I'm out over $100 buck for the 2-piece
>> conversion fittings.
>>
>> Does anyone know of anybody whose one-piece front strut fittings went on
>> without having to heat/torque/convert etc them to fit?
>>
>> John Flavin
>> Olathe KS
>> Still looking for that good low-hours cheap 912S...
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p 8690#208690
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
Message 6
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| Subject: | RE: Ill-fitting One-piece Strut |
do not archive
It has been a long time, but somebody mentioned a "fix" for the "It don't fit"
problem.
As I recall, the one-piece strut was cut in half with the thinest hacksaw blade
available, then the ends were fitted top and bottom to the wing and fuselage.
A "sleeve" about 300mm long was used to connect the two loose ends. With the
sleeve in place you simply drill through the sleeve & strut to insert the AN-3
bolts. Also seems that there was mention of allowing for the thickness to
the hacksaw blade when drilling the hole at the gear-attach point. This would
be determined by the string stretched tip-to-tip.
This somewhat resembles the older two-piece strut, except that four bolts are required,
and it doesn't look so great.
Only positive aspect of this approach may be that the location of the splice bolts
might also serve as points to anchor the jury struts. Makes measuring an
issue in order to get splice bolts and jury strut brackets oriented correctly
on the strut. Probably more hassle than it is worth.
I don't see any reason the splices couldn't go at the bottom end of the strut,
near the gear.
Regards to all.
Zed
Message 7
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| Subject: | Chris Lewis - Please contact me off line |
Hi Chris,
Could you please contact me off line?
Walt in Seattle - walt.cannon@boeing.com
Do not archive
Message 8
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| Subject: | Re: 701 one-piece strut blues |
I had the exact same problem. I bought the 4 ends from ZAC, I believe the
fronts are different from the backs (it's been awhile) and cut the top ends
off the original one piece struts and then slipped the new end over the
tube, drilled and bolted. It's a much better system.
Gordon
----- Original Message -----
From: "jf3sb" <jf3sb@yahoo.com>
Sent: Tuesday, October 14, 2008 8:37 AM
Subject: Zenith701801-List: 701 one-piece strut blues
>
> Ladies/Gents:
>
> Started hanging the wings on the 701 fuselage last week. All went
> perfectly until I got to the front struts. Mine are the one-piece factory
> units and like a lot of others on the list found, the angle of the tabs on
> the end are off by maybe 4 degrees. Just enough I could torque it on with
> a pipe wrench, but too far off to build it that way. Exactly the same
> case on both wings, as if they needed a left-side and right-side version.
> The back struts fit -perfectly-.
>
> Called Zenith and their opinion is that the misalignment is caused by
> slight misplacement of the landing gear fitting. Maybe, but I normally
> know it when I've dorked up a part, plus that would have messed up the
> back struts too. Anyway, I'm out over $100 buck for the 2-piece
> conversion fittings.
>
> Does anyone know of anybody whose one-piece front strut fittings went on
> without having to heat/torque/convert etc them to fit?
>
> John Flavin
> Olathe KS
> Still looking for that good low-hours cheap 912S...
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 8690#208690
>
>
>
Message 9
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| Subject: | Re: 701 one-piece strut blues |
Ours were off as well, Zenith replaced them with correct ones that matched
our measurements. This was in 2004.
----- Original Message -----
From: "jf3sb" <jf3sb@yahoo.com>
Sent: Tuesday, October 14, 2008 5:37 AM
Subject: Zenith701801-List: 701 one-piece strut blues
>
> Ladies/Gents:
>
> Started hanging the wings on the 701 fuselage last week. All went
> perfectly until I got to the front struts. Mine are the one-piece factory
> units and like a lot of others on the list found, the angle of the tabs on
> the end are off by maybe 4 degrees. Just enough I could torque it on with
> a pipe wrench, but too far off to build it that way. Exactly the same
> case on both wings, as if they needed a left-side and right-side version.
> The back struts fit -perfectly-.
>
> Called Zenith and their opinion is that the misalignment is caused by
> slight misplacement of the landing gear fitting. Maybe, but I normally
> know it when I've dorked up a part, plus that would have messed up the
> back struts too. Anyway, I'm out over $100 buck for the 2-piece
> conversion fittings.
>
> Does anyone know of anybody whose one-piece front strut fittings went on
> without having to heat/torque/convert etc them to fit?
>
> John Flavin
> Olathe KS
> Still looking for that good low-hours cheap 912S...
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 8690#208690
>
>
>
Message 10
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| Subject: | Re: 701 one-piece strut blues |
John,
I also had the same prob., with either one or both front struts.
Heated (jigged) over a 1 ft area and four degrees correction felt very minor.
When I did this I had already ordered one or two two-piece struts (front only?
Single? Both? Can't remember). I have it (them?) in orig packaging at the hangar,
if it would help, email me..
Bill Mileski
william dot mileski at gmail dot com
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 8754#208754
Message 11
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| Subject: | Re: 701 one-piece strut blues |
Wow! I must have gotten lucky! Mine fit perfect once I dialed in the
dihedral. The only thing I wondered about was the inability to adjust for
any wing heavy condition or to rig it a bit different if necessary. But my
heart was in my mouth when I drilled all the holes! Whew!
But it flew straight and I didn't even have to adjust the flapperons or
anything else.
A quick flying report - after 15 hours and the initial CG adjustment it
flies perfectly! Only a few little things to tweak up! It'll fly hands and
feet off for miles in still air!
Bob
----- Original Message -----
From: "billmileski" <william.mileski@gmail.com>
Sent: Tuesday, October 14, 2008 12:43 PM
Subject: Zenith701801-List: Re: 701 one-piece strut blues
> <william.mileski@gmail.com>
>
> John,
> I also had the same prob., with either one or both front struts.
> Heated (jigged) over a 1 ft area and four degrees correction felt very
> minor.
> When I did this I had already ordered one or two two-piece struts (front
> only? Single? Both? Can't remember). I have it (them?) in orig packaging
> at the hangar, if it would help, email me..
>
> Bill Mileski
> william dot mileski at gmail dot com
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 8754#208754
>
>
>
Message 12
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| Subject: | Re: Zenith CH750 Detail Pictures |
Gary,
You suggest that they may change the rudder on the 750. That would, of
course, violate their current message that the 750 has the same rudder
as the 701. In fact, my daughter and I just built our 701/750 rudder at
a workshop last weekend. Can you tell us more of what you know?
Bob Collins
Sunnyvale CA USA
gburdett wrote:
>
> Chris,
>
> Yes , they changed the elevator in the last two weeks before the factory day.
It was on the table in the shop when I flew the CH 750 in early September. The
tail group still has some mods that could be made, additional fairing around
the stab now that the brackets are not in the way, VG's on the new elevator,
and a larger rudder(just for looks). I am hoping that they are still working which
is why I am going to the wing kit next. When I flew the 750 , the continental
definitely makes it nose heavy. It was better the second flight with the
new elevator, but it still could use some added flare ability at no power and
slow speeds. By the time the wings are done, maybe there will be a few added
changes to the tail. The next decision is cuff-no cuff.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 8553#208553
>
>
Message 13
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| Subject: | Re: Zenith CH750 Detail Pictures |
Was the spar for the rudder you just built 0.025 or 0.032 thickness?
I was recently informed that the 750 rudder is the same as the one I had just finished
with the exception of the fact that the 750 rudder spar is 0.032. Mine
happened to be 0.025 and I'm replacing it. I started it a while ago so I apparently
missed the change.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 8825#208825
Message 14
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| Subject: | Re: Zenith CH750 Detail Pictures |
Hi Burke,
I just attempted to measure the spar thickness on my mostly complete
rudder and I think it is 0.032. The plans I got say the spar is supposed
to be 0.025 but the plans were out-of-date in other ways. The plans do
say that the doublers are to be 0.032. My guess is that the spar are all
now 0.032 going forward.
I will check with my workshop instructor to confirm the spar thickness
on my rudder.
Bob Collins
Sunnyvale CA USA
PS. Just a request, but it would be helpful if you would quote the
message you are responding to (I am assuming it was my message you were
asking about). Also, please sign your message; I was able to find your
name in an earlier post of yours. Thanks for listening. ;-)
rbjjr wrote:
>
> Was the spar for the rudder you just built 0.025 or 0.032 thickness?
>
> I was recently informed that the 750 rudder is the same as the one I had just
finished with the exception of the fact that the 750 rudder spar is 0.032. Mine
happened to be 0.025 and I'm replacing it. I started it a while ago so I
apparently missed the change.
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 8825#208825
>
>
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