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dpfisher(at)scottsbluff.n
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 Posted: Mon Sep 14, 2009 7:57 pm Post subject: A65 |
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Hi Mike and list,
Mike, you asked about A65 Continentals several weeks ago. I'm not yet in
the air so take this for what it's worth. I'm building (slowly!) a 701
with an A65 that I converted to an A80. It still needs to be hand propped
and it won't compete with a 100 hp Rotax, but it's not a difficult
conversion and gives you a few more horses and a simple, reliable, and
inexpensive engine. The differences are called out in the old Continental
Repair Manual. Basically the A80 is an A65 with extra oil holes in the rod
caps, different valves, higher compression pistons and a larger venturi in
the carb and you run it at a higher RPM to get 80 HP. I also balanced my
engine which should help with the higher RPMs. An A75 is basically the
same without the high compression pistons. The bare engine weight is 170
lbs and my fire wall forward weighs about 200lbs. My empty airplane weight
will be between 600 and 650 lbs with tundra gear and 1100 gross weight. (
basic VFR, no frills- keep it light) I'm also extending my wing span by 2
ft.per sketch by Chris, and plan to try the VGs instead of slats. Most of
my flying will be solo so I'm hoping the A80 will be adequate. To look at
it another way, I'll have the same wing span as the Ch750 and I'll be
about 100 lbs lighter which should give me something similar to the climb
performance of an 0200 equipped CH750. I'll keep you posted if and when I
get this thing in the air!
Hope this helps.
Dave Fisher, Scottsbluff NE
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dlorrzen701(at)earthlink.
Guest
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| Posted: Tue Sep 15, 2009 7:22 am Post subject: A65 |
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Here is a You Tube Video of an A-65 running on a Zenith 701. I am also going with a Continental C-85-12F with a light weight starter and alternator for my 701. I tried serveral time to contact the video owner but never got a reply.
http://www.youtube.com/watch?v=UJsvDkXrPIo&feature=related
--
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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kmccune
Joined: 22 Sep 2007
Posts: 577
Location: Wisconsin, USA
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| Posted: Tue Sep 15, 2009 4:01 pm Post subject: Re: A65 |
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Yes please keep us posted!
Kevin
| dpfisher(at)scottsbluff.n wrote: | Hi Mike and list,
Mike, you asked about A65 Continentals several weeks ago. I'm not yet in
the air so take this for what it's worth. I'm building (slowly!) a 701
with an A65 that I converted to an A80. It still needs to be hand propped
and it won't compete with a 100 hp Rotax, but it's not a difficult
conversion and gives you a few more horses and a simple, reliable, and
inexpensive engine. The differences are called out in the old Continental
Repair Manual. Basically the A80 is an A65 with extra oil holes in the rod
caps, different valves, higher compression pistons and a larger venturi in
the carb and you run it at a higher RPM to get 80 HP. I also balanced my
engine which should help with the higher RPMs. An A75 is basically the
same without the high compression pistons. The bare engine weight is 170
lbs and my fire wall forward weighs about 200lbs. My empty airplane weight
will be between 600 and 650 lbs with tundra gear and 1100 gross weight. (
basic VFR, no frills- keep it light) I'm also extending my wing span by 2
ft.per sketch by Chris, and plan to try the VGs instead of slats. Most of
my flying will be solo so I'm hoping the A80 will be adequate. To look at
it another way, I'll have the same wing span as the Ch750 and I'll be
about 100 lbs lighter which should give me something similar to the climb
performance of an 0200 equipped CH750. I'll keep you posted if and when I
get this thing in the air!
Hope this helps.
Dave Fisher, Scottsbluff NE |
| | - The Matronics Zenith701801-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith701801-List |
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