Today's Message Index:
----------------------
1. 03:24 AM - Re: Re: 701 Dual Controls. ref Michael Rand. (Richard Cottingham)
2. 03:39 AM - Re: Trying an unproven engine - is it feasible, is it safe? (kmccune)
3. 07:37 AM - Quick Question (James Sagerser)
4. 07:37 AM - Re: Trying an unproven engine - is it feasible, is it safe? (Carl)
5. 09:05 AM - Re: Trying an unproven engine - is it feasible, is it safe? (special4)
6. 09:36 AM - Re: Quick Question (Gary Ray)
7. 11:08 AM - Re: Quick Question (LRM)
8. 12:24 PM - Re: Quick Question (Tim Juhl)
9. 12:30 PM - Re: Trying an unproven engine - is it feasible, is it safe? ()
10. 01:02 PM - Re: Trying an unproven engine - is it feasible, is it safe? (Joemotis@aol.com)
11. 02:04 PM - Re: Trying an unproven engine - is it feasible, is it safe? (Joemotis@aol.com)
12. 03:23 PM - Re: Quick Question (steve)
13. 03:32 PM - Beginner (THOMAS SMALL)
14. 07:51 PM - Looking to trade unused 601 plans ()
15. 07:51 PM - Re: Trying an unproven engine - is it feasible, is it safe? (LRM)
16. 08:08 PM - landing gear fabrication (raymondj)
17. 08:27 PM - Re: Quick Question (Bryan Martin)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 701 Dual Controls. ref Michael Rand. |
Geoff
There is some confusion with my email address
mrd@wn.com.au
Thanks and regards
do not archive
----- Original Message -----
From: "Geoff Heap" <stol10@comcast.net>
Sent: Thursday, December 27, 2007 9:16 PM
Subject: Zenith-List: Re: 701 Dual Controls. ref Michael Rand.
>
> Richard. I get all your emails but you don't get any of my replies. I
> suggest you get a friend to email me for the info......Geoff
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=154490#154490
>
>
>
--
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Trying an unproven engine - is it feasible, is it safe? |
Safe is a pretty relative term, I like your idea, but I don't know that I'd fly
in it.
Try these guys, it a forum for converting motorcycle engines, its the closest info
that I have. The air-trike guys mentioned are also at this forum.
http://groups.yahoo.com/group/moto-air/
Kevin
--------
Kevin
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154686#154686
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Does anyone know if a regular (whiskey) compass is required equipment if
your aircraft has an EFIS system like the Enigma?
Also. Can anyone recommend a free site to post pictures of our projects
besides "MySpace" (received 3 special solicitations in the first hour!).
Thanks in advance, Jim
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Trying an unproven engine - is it feasible, is it safe? |
Hi Randy.
Two 701 builders here in Ottawa Cda are using the 4 cyl 4 cycle Yamaha
engine. One is out of a jet ski the other from a snowmobile. Someone in
Montreal built redrives for them. One a/c is due for completion in 2008 and
the engine has started ground testing.
The idea of using the Rotax gearbox is good in terms of reducing the risk of
using a combination of non aviation engine and newly designed redrive. In
terms of gear ratio, I believe they plan to run the Yamahas at about the
same RPM as the Rotax 912 (5800 to 6000). One limitation on the basic 701
design to consider is 200 lbs and 100 HP max for the engine. As far as
thrust loads on the engine and the mount I would also recommend including
gyroscopic loads generated by the engine, redrive and prop.
My brother, a snowmobile enthusiast, told me these engines have a good
reputation and Yamaha has released a three cylinder version that may even be
lighter and could also be a good match for the 701.
Carl/701/912
----- Original Message -----
From: "AB_Summit" <rengler@live.ca>
Sent: Thursday, December 27, 2007 12:24 PM
Subject: Zenith-List: Trying an unproven engine - is it feasible, is it safe
>
> Hi everyone,
>
> (This is a cross posting from homebuiltairplanes.com, but I thought I
> would post it here as well to get input from you guys.)
>
> I've got an idea for a new engine redrive combination that as far as I
> know, no one has tried before. This is all hypothetical for the time being
> as I don't even have a plane to put it on, but I'm thinking of building a
> Zenith STOL CH-701 and I think this would be a good engine for that plane.
> I am not an engineer, or even a pilot yet, but I do enjoy building,
> fabricating, working with metalt, etc.
>
> My idea is to take a Yamaha four stroke, four cylinder snowmobile engine
> and adapt a Rotax gearbox redrive to it. This would be for my own personal
> use only and not for any commercial purpose. The engine is just under
> 1000cc's and produces 140HP in the carbureted version and 150HP in the EFI
> version, but I would derate it for aircraft use. The weight of the engine
> is 118 lbs. This engine is based on the R1 motorcycle engine, but doesn't
> have a gearbox like the motorcycle engine does. This engine has proven
> durable in snowmobiles that have been turbocharged and are making 300HP+.
>
> My method of adapting the redrive to the engine would be to machine an
> adapter ring and coupling. There is a ring of 6 bolts around the output
> shaft of the engine, I could make a plate that attaches to the engine
> using these 6 bolts and then drill and tap the plate to accept the Rotax
> gearbox bolt pattern and bolt the gearbox to the plate. Then I would need
> to do some machining to get the shafts couple properly.
>
> As I said in the title, my questions are would this be feasible, and would
> this be safe? My first thought is that if this was easy to do, somebody
> would have already done it, and since I haven't seen this combination
> before it makes me wonder if there is some problem I haven't thought of.
>
> To me the main concerns are whether the joint between the engine and
> gearbox would be substantial enough to handle the load put on it by the
> thrust of the propeller, and whether there would be any torsional
> vibration concerns that would damage the engine or the gearbox. There is a
> rubber cushion built into the Rotax C gearbox that would help absorb some
> of the vibration, and there is also a clutch that can be installed into it
> to uncouple the gearbox from the engine at low RPM's. I could also install
> some external bracing between the engine and gearbox to take some of the
> thrust loads. Another concern is designing an engine mount that is safe
> and will take all the loads put on it.
>
> If I were to go ahead with this, how could I ensure that my installation
> is safe? Should it be inspected by a mechanical engineer? I imagine having
> it looked at by an EAA tech counsellor would be a good idea as well.
>
> Are there any risks that I haven't though of that I should be aware of?
> I'd like to hear your thoughts as to whether this is doable and safe.
> Would I be better off going with a more proven conversion like the
> Suzuki/Geo or go with the 912?
>
> Thanks
> Randy
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=154524#154524
>
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Trying an unproven engine - is it feasible, is it safe? |
Hi Randy,
I like your idea of the fuel injected yamaha....but as with all conversions it
might be a lot of work/time. As for the reduction drive... I would not go with
a Rotax as I think the power output of the yamaha is to high. As the prices for
the Rotax/Jabiru/Continental and Lycomings are "sky high" (and climbing), I
am planning to use a conversion engine...
Peter
601XL
do not archive
--------
Sportsflyer
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154742#154742
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Quick Question |
James
If you have an XP computer or later you can go to Google and download
'Picassa' and use their web space to post your pics. The Picassa program
works well and updoads easily and it is a free service.
Gary Ray
----- Original Message -----
From: "James Sagerser" <alaskajim@cox.net>
Sent: Friday, December 28, 2007 10:36 AM
Subject: Zenith-List: Quick Question
>
> Does anyone know if a regular (whiskey) compass is required equipment if
> your aircraft has an EFIS system like the Enigma?
>
> Also. Can anyone recommend a free site to post pictures of our projects
> besides "MySpace" (received 3 special solicitations in the first hour!).
>
> Thanks in advance, Jim
>
>
> --
5:26 PM
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Quick Question |
The answer to your question is yes. However, be careful. I never heard of
it before, so I spent the last half hour researching it. Most comments were
positive, but several were negative. Not about how the software functioned,
it seems great, but what it did to your computer, like loading it up with
.inf files, etc. I don't know man, you do what you want, but I spent many
years the computer business and I spent a lot of time getting and keeping my
computers clean and running fast. This computer stuff is a nasty game, even
when you go buy name brand software, they load you up with useless junk,
spyware, adware. It all slows down your computer, runs little programs in
background. They change your home page, etc., it never stops. None of this
"free" downloads is really free. Not really airplane stuff, is it? But, I
think it's important. LRM www.skyhawg.com.
----- Original Message -----
From: "Gary Ray" <davgray@sbcglobal.net>
Sent: Friday, December 28, 2007 11:30 AM
Subject: Re: Zenith-List: Quick Question
>
> James
>
> If you have an XP computer or later you can go to Google and download
> 'Picassa' and use their web space to post your pics. The Picassa program
> works well and updoads easily and it is a free service.
>
> Gary Ray
>
> ----- Original Message -----
> From: "James Sagerser" <alaskajim@cox.net>
> To: <zenith-list@matronics.com>
> Sent: Friday, December 28, 2007 10:36 AM
> Subject: Zenith-List: Quick Question
>
>
>>
>> Does anyone know if a regular (whiskey) compass is required equipment if
>> your aircraft has an EFIS system like the Enigma?
>>
>> Also. Can anyone recommend a free site to post pictures of our projects
>> besides "MySpace" (received 3 special solicitations in the first hour!).
>>
>> Thanks in advance, Jim
>>
>>
>>
>>
>>
>>
>>
>>
>> --
> 5:26 PM
>>
>>
>
>
> --
> 12/27/2007 1:34 PM
>
>
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Quick Question |
If you just want to post a few pix try http://photobucket.com/
If you want to keep a builders log with hundreds of photos you may need to rent
space on a server and set up a web page.
I believe the EFIS meets the compass (magnetic direction indicating device requirements)
but if you look back over the last couple of months I believe there
was some discussion on the subject. You might have a little trouble convincing
a inspector who was not too up on things. That said...one advantage of a whiskey
compass is it doesn't fail when the electrical system goes down. You want
some kind of redundancy. I like my battery powered garmin 296.
Tim
--------
______________
CFII
Champ L16A flying
Zodiac XL - Jabiru 3300A
Working on fuselage
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154774#154774
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Trying an unproven engine - is it feasible, is it safe? |
Every "firster" who ever tried a new non-aircraft component asked the
same question--"is it feasible, is it safe?" If not for the "firsters"
, we'd still be using nothing but Lyconentals, and wishing somebody wo
uld come up with something different, and cheaper. It's both feasible
and safe , when you figure out how to make it so. That's what experime
ntal arcraft is all about. Take a good look at the engine. Find somebo
dy who can show you the guts of the redrive. Figure out what it will t
ake to join the two units. Figure out how strong it will have to be. Y
ou'll probably have to build one to determine if there are any harmoni
c issues you need to deal with. And on, and on. Then you'll need to fi
gure out exactly where, in relation to the fire wall, it needs to be,
for weight and balance purposes. Then, figure out what kind, and size,
of prop it works best with. And, after having figured out a thousand
ways it didn't work, you'll either give up, or have developed one swee
t FWF that people will salivate over, and pound down your door to get
either the plans, the parts, or the whole thing from you. Do it or not
? Your decision. That's experimental aviation. On a smaller scale, we
all do a little something outside of the box, be it different bracing,
different turnbuckles, different fuel tanks, etc. Personally, I'd go
for it, and see what happens. At worst, you'll make junk out of an eng
ine and redrive, and waste some money at the machine shop.=0A=0A
Paul Rodriguez=0A ----- Original Message ----- =0A From: AB_Su
mmit<mailto:rengler@live.ca> =0A To: zenith-list@matronics.com<mai
lto:zenith-list@matronics.com> =0A Sent: Thursday, December 27, 20
07 11:24 AM=0A Subject: Zenith-List: Trying an unproven engine - i
s it feasible, is it safe?=0A=0A=0A --> Zenith-List message
posted by: "AB_Summit" <rengler@live.ca<mailto:rengler@live.ca>>=0A
=0A Hi everyone,=0A=0A (This is a cross posting from homebu
iltairplanes.com, but I thought I would post it here as well to get in
put from you guys.)=0A=0A I've got an idea for a new engine red
rive combination that as far as I know, no one has tried before. This
is all hypothetical for the time being as I don't even have a plane to
put it on, but I'm thinking of building a Zenith STOL CH-701 and I th
ink this would be a good engine for that plane. I am not an engineer,
or even a pilot yet, but I do enjoy building, fabricating, working wit
h metal, etc.=0A=0A My idea is to take a Yamaha four stroke, fo
ur cylinder snowmobile engine and adapt a Rotax gearbox redrive to it.
This would be for my own personal use only and not for any commercial
purpose. The engine is just under 1000cc's and produces 140HP in the
carbureted version and 150HP in the EFI version, but I would derate it
for aircraft use. The weight of the engine is 118 lbs. This engine is
based on the R1 motorcycle engine, but doesn't have a gearbox like th
e motorcycle engine does. This engine has proven durable in snowmobile
s that have been turbocharged and are making 300HP+.=0A=0A My m
ethod of adapting the redrive to the engine would be to machine an ada
pter ring and coupling. There is a ring of 6 bolts around the output s
haft of the engine, I could make a plate that attaches to the engine u
sing these 6 bolts and then drill and tap the plate to accept the Rota
x gearbox bolt pattern and bolt the gearbox to the plate. Then I would
need to do some machining to get the shafts couple properly.=0A
=0A As I said in the title, my questions are would this be feasible,
and would this be safe? My first thought is that if this was easy to d
o, somebody would have already done it, and since I haven't seen this
combination before it makes me wonder if there is some problem I haven
't thought of.=0A=0A To me the main concerns are whether the jo
int between the engine and gearbox would be substantial enough to hand
le the load put on it by the thrust of the propeller, and whether ther
e would be any torsional vibration concerns that would damage the engi
ne or the gearbox. There is a rubber cushion built into the Rotax C ge
arbox that would help absorb some of the vibration, and there is also
a clutch that can be installed into it to uncouple the gearbox from th
e engine at low RPM's. I could also install some external bracing betw
een the engine and gearbox to take some of the thrust loads. Another c
oncern is designing an engine mount that is safe and will take all the
loads put on it.=0A=0A If I were to go ahead with this, how co
uld I ensure that my installation is safe? Should it be inspected by a
mechanical engineer? I imagine having it looked at by an EAA tech cou
nsellor would be a good idea as well.=0A=0A Are there any risks
that I haven't though of that I should be aware of? I'd like to hear
your thoughts as to whether this is doable and safe. Would I be better
off going with a more proven conversion like the Suzuki/Geo or go wit
h the 912?=0A=0A Thanks=0A Randy=0A=0A=0A=0A
=0A Read this topic online here:=0A=0A http://forums.matronics
com/viewtopic.php?p=154524#154524<http://forums.matronics.com/viewt
opic.php?p=154524#154524>=0A=0A=0A=0A=0A=0A=0A
=======================
ronics.com/contribution<http://www.matronics.com/contribution>=0A
=======================
======================
=======================
=======================
=======================
=======================
====0A=0A=0A=0A
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Trying an unproven engine - is it feasible, is it safe? |
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Trying an unproven engine - is it feasible, is it safe? |
Excuse me list?!?!
Joe Motis
Do not archive
(http://food.aol.com/top-rated-recipes?NCID=aoltop00030000000004)
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Quick Question |
Thats a good question.
I asked the EAA Tech. guys and they said no, all I needed was the GPS or
other device. HOWEVER the FAA says " A Magnetic Direction Device".
SW
----- Original Message -----
From: "James Sagerser" <alaskajim@cox.net>
Sent: Friday, December 28, 2007 8:36 AM
Subject: Zenith-List: Quick Question
>
> Does anyone know if a regular (whiskey) compass is required equipment if
> your aircraft has an EFIS system like the Enigma?
>
> Also. Can anyone recommend a free site to post pictures of our projects
> besides "MySpace" (received 3 special solicitations in the first hour!).
>
> Thanks in advance, Jim
>
>
>
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
...Are there any good
books for advice like that for builders?
Darrell,
You now know more than you'll ever need about dl, especially since
you're working from a kit and will rarely make a part requiring that
knowledge. Still, it's good to know as much as you can; who knows, you
may decide to plans-built the rest.
You've gotten a lot of good info. To it I would add:
Buy the Tony Bingellis books from the EAA, particually the first two...
If not already a member of EAA become one...
Find an active EAA chapter near you - one with builders, not coffee
sippers and pizza eaters, who are there only to socialize. The social
aspect of building, the hangar flying, is important, but you need folks
in the know with their hands in or on a project...
If you haven't already done so contact a local FSDO or MIDO office and
tell them you're building. Ask all pertinent paperwork be sent your
way, especially AC20-27F and the forms that will be needed for final
steps in project. As you have a reserved tail number then maybe this is
done...
http://www.faa.gov/about/office_org/field_offices/fsdo/
http://www.faa.gov/aircraft/air_cert/locate_office/mido/
If you're an EAA member you can find a wealth of info from general to
detailed at
http://members.eaa.org/home/homebuilders/authors/bingelis/index.html
I'll sendyou some info on nutplates off-list.
Good luck jeff
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Looking to trade unused 601 plans |
I am looking to trade my new unused 601HD plans for some 701 plans.
David Mikesell
230 Theresa Drive, #6
Cloverdale, CA 95425
209-224-4485
skyguynca@skyguynca.com
www.skyguynca.com
Message 15
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Trying an unproven engine - is it feasible, is it safe? |
Well said. If is wasn't for people like "some of us" we would be
rolling rocks and picking our rears. Just test, test and test again and
when you think you got it right, test it again. On the ground, that is.
LRM, www.skyhawg.com
----- Original Message -----
From: paulrod36@msn.com
To: zenith-list@matronics.com
Sent: Friday, December 28, 2007 2:29 PM
Subject: Re: Zenith-List: Trying an unproven engine - is it feasible,
is it safe?
Every "firster" who ever tried a new non-aircraft component asked the
same question--"is it feasible, is it safe?" If not for the "firsters",
we'd still be using nothing but Lyconentals, and wishing somebody would
come up with something different, and cheaper. It's both feasible and
safe , when you figure out how to make it so. That's what experimental
arcraft is all about. Take a good look at the engine. Find somebody who
can show you the guts of the redrive. Figure out what it will take to
join the two units. Figure out how strong it will have to be. You'll
probably have to build one to determine if there are any harmonic issues
you need to deal with. And on, and on. Then you'll need to figure out
exactly where, in relation to the fire wall, it needs to be, for weight
and balance purposes. Then, figure out what kind, and size, of prop it
works best with. And, after having figured out a thousand ways it didn't
work, you'll either give up, or have developed one sweet FWF that people
will salivate over, and pound down your door to get either the plans,
the parts, or the whole thing from you. Do it or not? Your decision.
That's experimental aviation. On a smaller scale, we all do a little
something outside of the box, be it different bracing, different
turnbuckles, different fuel tanks, etc. Personally, I'd go for it, and
see what happens. At worst, you'll make junk out of an engine and
redrive, and waste some money at the machine shop.
Paul Rodriguez
----- Original Message -----
From: AB_Summit
To: zenith-list@matronics.com
Sent: Thursday, December 27, 2007 11:24 AM
Subject: Zenith-List: Trying an unproven engine - is it feasible, is
it safe?
Hi everyone,
(This is a cross posting from homebuiltairplanes.com, but I thought
I would post it here as well to get input from you guys.)
I've got an idea for a new engine redrive combination that as far as
I know, no one has tried before. This is all hypothetical for the time
being as I don't even have a plane to put it on, but I'm thinking of
building a Zenith STOL CH-701 and I think this would be a good engine
for that plane. I am not an engineer, or even a pilot yet, but I do
enjoy building, fabricating, working with metal, etc.
My idea is to take a Yamaha four stroke, four cylinder snowmobile
engine and adapt a Rotax gearbox redrive to it. This would be for my own
personal use only and not for any commercial purpose. The engine is just
under 1000cc's and produces 140HP in the carbureted version and 150HP in
the EFI version, but I would derate it for aircraft use. The weight of
the engine is 118 lbs. This engine is based on the R1 motorcycle engine,
but doesn't have a gearbox like the motorcycle engine does. This engine
has proven durable in snowmobiles that have been turbocharged and are
making 300HP+.
My method of adapting the redrive to the engine would be to machine
an adapter ring and coupling. There is a ring of 6 bolts around the
output shaft of the engine, I could make a plate that attaches to the
engine using these 6 bolts and then drill and tap the plate to accept
the Rotax gearbox bolt pattern and bolt the gearbox to the plate. Then I
would need to do some machining to get the shafts couple properly.
As I said in the title, my questions are would this be feasible, and
would this be safe? My first thought is that if this was easy to do,
somebody would have already done it, and since I haven't seen this
combination before it makes me wonder if there is some problem I haven't
thought of.
To me the main concerns are whether the joint between the engine and
gearbox would be substantial enough to handle the load put on it by the
thrust of the propeller, and whether there would be any torsional
vibration concerns that would damage the engine or the gearbox. There is
a rubber cushion built into the Rotax C gearbox that would help absorb
some of the vibration, and there is also a clutch that can be installed
into it to uncouple the gearbox from the engine at low RPM's. I could
also install some external bracing between the engine and gearbox to
take some of the thrust loads. Another concern is designing an engine
mount that is safe and will take all the loads put on it.
If I were to go ahead with this, how could I ensure that my
installation is safe? Should it be inspected by a mechanical engineer? I
imagine having it looked at by an EAA tech counsellor would be a good
idea as well.
Are there any risks that I haven't though of that I should be aware
of? I'd like to hear your thoughts as to whether this is doable and
safe. Would I be better off going with a more proven conversion like the
Suzuki/Geo or go with the 912?
Thanks
Randy
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=154524=======
============== (And Get p; the
Contribution link below to find out more
abouthttp://www.matronics.com/Navigator?Zenith=========
==============p; &nt;
http://forums.matronics.com
===========
-------------------------------------------------------------------------
---
12/28/2007 11:51 AM
Message 16
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | landing gear fabrication |
Greetings listers,
I remember seeing a thread about fabricating the spring gear for the
701/801 in the past but I couldn't find it in the archives. I'd
appreciate any help finding any info. on the topic.
Thanks,
Raymond Julian
Kettle River, MN
"Hope for the best,
but prepare for the worst."
do not archive
Message 17
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Quick Question |
I believe the requirement for a magnetic direction device applies only
to aircraft with standard airworthiness certificates unless you intend
to fly IFR. In that case your op-lims specify that you must meet the
same minimum equipment list as specified for standard aircraft. However,
the compass does not need to be a TSO'd aircraft compass. I have a $10
compass from Walmart in my plane and it works just fine.
steve wrote:
>
> Thats a good question.
> I asked the EAA Tech. guys and they said no, all I needed was the GPS or
> other device. HOWEVER the FAA says " A Magnetic Direction Device".
> SW
> ----- Original Message ----- From: "James Sagerser" <alaskajim@cox.net>
> To: <zenith-list@matronics.com>
> Sent: Friday, December 28, 2007 8:36 AM
> Subject: Zenith-List: Quick Question
>
>
>>
>> Does anyone know if a regular (whiskey) compass is required equipment if
>> your aircraft has an EFIS system like the Enigma?
>>
>> Also. Can anyone recommend a free site to post pictures of our projects
>> besides "MySpace" (received 3 special solicitations in the first hour!).
>>
>> Thanks in advance, Jim
>>
>>
--
Bryan Martin
Zenith 601XL N61BM
Ram Subaru, Stratus redrive
Do Not Archive
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|