Today's Message Index:
----------------------
1. 02:25 AM - Re: RV-7 engine/prop options ()
2. 03:17 AM - Re: Re: RV-7 engine/prop options (Greg Blakey)
3. 06:10 AM - Re: Torque Values for Sensors and other not nuts and bolts stuff ?Torque Values for Sensors and other not nuts and (Jim Percy)
4. 06:50 AM - Re: Re: RV-7 engine/prop options (Hinde, Frank George (Corvallis))
5. 06:51 AM - Re: Re: RV-7 engine/prop options (J. Brunke)
6. 06:55 AM - Re: Re: RV-7 engine/prop options (Hinde, Frank George (Corvallis))
7. 08:50 AM - Re: RV-7 engine/prop optionsRV-7 engine/prop options (Robert)
8. 09:46 AM - Re: RV-7 engine/prop optionsRV-7 engine/prop options (Hinde, Frank George (Corvallis))
9. 06:12 PM - Re: RV-7 engine/prop optionsRV-7 engine/prop options (Charlie England)
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: RV-7 engine/prop options |
Hartzells or the BA new ones do not have RPM limits.
James Cowls come in short lengths, so extended hubs are not needed.
MT props are way slower with their fat wood / fiberglass blades.
MT props are also more money, cost more than twice as much to
overhaul and may take many many weeks and shipping
to Germany or who knows to have work done. Hartzells can be
locally overhauled, often in a few days. Also nicks and
delaminations on a MT means removal from plane and disassembly.
A nick in a hartrzell can be filed out on the plane.
As far as other "experimental props" you are taking more chance
flying them than a extended hub hartzell doing 3.0 g aerobatics. Ask
them if they have done flight test and vibration survey with the Lyc on
a RV or with electronic ignition or high compression pistons. The new
Hartzells have been tested and optimized for RV's as has the
Sensenich. Guess who makes the fastest props for RV's? (5-9 mph)
Hartzell and Sensenich and they are both the best value and the least
expensive of constant speed and fixed props respectively. Plus they
are backed up by a large company.
George
>From: "J. Brunke" <jdoody727@comcast.net>
>Subject: Re: RV7-List: RV-7 engine/prop options
>
>Charlie,
>
>About a year ago I was talking to a women in Hartzell's engineering
>department about the hub extension.
>
>Like you I am leaning towards the James cowl so the extension is
>definitely needed.
>
>They also don't have any RPM typerestrictions on their props like Hartzell
>does.
>
>MT's are an excellent prop, but he said it was quite a hassle getting the
>correct length hub from them.
---------------------------------
Ahhh...imagining that irresistible "new car" smell?
Check outnew cars at Yahoo! Autos.
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: RV-7 engine/prop options |
Interesting George....though clearly WhirlWind may be worth a look!
Faster and significantly lighter than the Hartzell, specifically
developed for RV's and with no RPM limitations. Take a look at the
review carried out in the RVaitor in 2005.
Cheers,
Greg Blakey (FADEC IOF360-M1B and WhirlWind 200RV)
----- Original Message -----
From: gmcjetpilot@yahoo.com
To: rv7-list@matronics.com
Sent: Tuesday, April 24, 2007 7:23 PM
Subject: RV7-List: Re: RV-7 engine/prop options
Hartzells or the BA new ones do not have RPM limits.
James Cowls come in short lengths, so extended hubs are not needed.
MT props are way slower with their fat wood / fiberglass blades.
MT props are also more money, cost more than twice as much to
overhaul and may take many many weeks and shipping
to Germany or who knows to have work done. Hartzells can be
locally overhauled, often in a few days. Also nicks and
delaminations on a MT means removal from plane and disassembly.
A nick in a hartrzell can be filed out on the plane.
As far as other "experimental props" you are taking more chance
flying them than a extended hub hartzell doing 3.0 g aerobatics. Ask
them if they have done flight test and vibration survey with the Lyc
on
a RV or with electronic ignition or high compression pistons. The new
Hartzells have been tested and optimized for RV's as has the
Sensenich. Guess who makes the fastest props for RV's? (5-9 mph)
Hartzell and Sensenich and they are both the best value and the least
expensive of constant speed and fixed props respectively. Plus they
are backed up by a large company.
George
>From: "J. Brunke" <jdoody727@comcast.net>
>Subject: Re: RV7-List: RV-7 engine/prop options
>
>Charlie,
>
>About a year ago I was talking to a women in Hartzell's engineering
>department about the hub extension.
>
>Like you I am leaning towards the James cowl so the extension is
>definitely needed.
>
>They also don't have any RPM typerestrictions on their props like
Hartzell
>does.
>
>MT's are an excellent prop, but he said it was quite a hassle getting
the
>correct length hub from them.
-------------------------------------------------------------------------
-----
Ahhh...imagining that irresistible "new car" smell?
Check out new cars at Yahoo! Autos.
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 |
|
| Subject: | Re: Torque Values for Sensors and other not nuts and bolts |
stuff ?Torque Values for Sensors and other not nuts and
Those values can be found in a Lycoming overhaul manual, except maybe
the oil filler spout.
The crush type gaskets are not torqued. They are tightened until there
is contact (finger tight) then further tightened a specified number of
degrees. I don't have my manual handy so I don't know the actual
values. The seam on the gasket goes on the engine side.
For the non-specified hardware like carb nuts, etc, there is a chart of
torque values based on diameter and thread pitch of the fastener.
Again, I don't have the numbers available right now. That overhaul
manual is probably a good investment if you don't have it.
Jim Percy
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: RV-7 engine/prop options |
Correct george I had forgotten that James now make short cowls.
However, with an Airflow performace throttle body there is no way it
would all fit on a forward facing sump..I am sceptical if a bendix would
fit either but I don't know for sure...This is assuming ou want the
James alternate air source...I could not get mine to fit (FF sump, AFP
with an extended cowl).
Frank
________________________________
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of
gmcjetpilot@yahoo.com
Sent: Tuesday, April 24, 2007 2:24 AM
Subject: RV7-List: Re: RV-7 engine/prop options
Hartzells or the BA new ones do not have RPM limits.
James Cowls come in short lengths, so extended hubs are not needed.
MT props are way slower with their fat wood / fiberglass blades.
MT props are also more money, cost more than twice as much to
overhaul and may take many many weeks and shipping
to Germany or who knows to have work done. Hartzells can be
locally overhauled, often in a few days. Also nicks and
delaminations on a MT means removal from plane and disassembly.
A nick in a hartrzell can be filed out on the plane.
As far as other "experimental props" you are taking more chance
flying them than a extended hub hartzell doing 3.0 g aerobatics. Ask
them if they have done flight test and vibration survey with the Lyc on
a RV or with electronic ignition or high compression pistons. The new
Hartzells have been tested and optimized for RV's as has the
Sensenich. Guess who makes the fastest props for RV's? (5-9 mph)
Hartzell and Sensenich and they are both the best value and the least
expensive of constant speed and fixed props respectively. Plus they
are backed up by a large company.
George
>From: "J. Brunke" <jdoody727@comcast.net>
>Subject: Re: RV7-List: RV-7 engine/prop options
>
>Charlie,
>
>About a year ago I was talking to a women in Hartzell's engineering
>department about the hub extension.
>
>Like you I am leaning towards the James cowl so the extension is
>definitely needed.
>
>They also don't have any RPM typerestrictions on their props like
Hartzell
>does.
>
>MT's are an excellent prop, but he said it was quite a hassle getting
the
>correct length hub from them.
________________________________
Ahhh...imagining that irresistible "new car" smell?
Check out new cars at Yahoo! Autos.
<http://us.rd.yahoo.com/evt=48245/*http://autos.yahoo.com/new_cars.html
;
_ylc=X3oDMTE1YW1jcXJ2BF9TAzk3MTA3MDc2BHNlYwNtYWlsdGFncwRzbGsDbmV3LWNhcn
M
->
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: RV-7 engine/prop options |
George,
I was just looking at Van's website store. If you click on the Hartzell
props, just below the list of props is a link to click on that
takes you to Hartzell. They proceed to list RPM restrictions there for
the various models. Do you have a different prop
than what is on this list?
I agree that the maintenance issue is a good selling point and the
price. However I know for a fact that the AeroComposite props do not
carry any RPM limits. In fact they have tested them at over 3000
RPM's. Being composite they do not have the resonance
problem that can occur with a metal prop at the mid RPM's listed on
Hartzell's site.
By the way I am getting good info from this thread. Please put some
differing opinions in here. That's what makes this list
worth reading.
John Brunke
----- Original Message -----
From: gmcjetpilot@yahoo.com
To: rv7-list@matronics.com
Sent: Tuesday, April 24, 2007 3:23 AM
Subject: RV7-List: Re: RV-7 engine/prop options
Hartzells or the BA new ones do not have RPM limits.
James Cowls come in short lengths, so extended hubs are not needed.
MT props are way slower with their fat wood / fiberglass blades.
MT props are also more money, cost more than twice as much to
overhaul and may take many many weeks and shipping
to Germany or who knows to have work done. Hartzells can be
locally overhauled, often in a few days. Also nicks and
delaminations on a MT means removal from plane and disassembly.
A nick in a hartrzell can be filed out on the plane.
As far as other "experimental props" you are taking more chance
flying them than a extended hub hartzell doing 3.0 g aerobatics. Ask
them if they have done flight test and vibration survey with the Lyc
on
a RV or with electronic ignition or high compression pistons. The new
Hartzells have been tested and optimized for RV's as has the
Sensenich. Guess who makes the fastest props for RV's? (5-9 mph)
Hartzell and Sensenich and they are both the best value and the least
expensive of constant speed and fixed props respectively. Plus they
are backed up by a large company.
George
>From: "J. Brunke" <jdoody727@comcast.net>
>Subject: Re: RV7-List: RV-7 engine/prop options
>
>Charlie,
>
>About a year ago I was talking to a women in Hartzell's engineering
>department about the hub extension.
>
>Like you I am leaning towards the James cowl so the extension is
>definitely needed.
>
>They also don't have any RPM typerestrictions on their props like
Hartzell
>does.
>
>MT's are an excellent prop, but he said it was quite a hassle getting
the
>correct length hub from them.
-------------------------------------------------------------------------
-----
Ahhh...imagining that irresistible "new car" smell?
Check out new cars at Yahoo! Autos.
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: RV-7 engine/prop options |
Significantly faster????...First I've heard of that..Are you sure??
Frank
________________________________
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Greg Blakey
Sent: Tuesday, April 24, 2007 3:20 AM
Subject: Re: RV7-List: Re: RV-7 engine/prop options
Interesting George....though clearly WhirlWind may be worth a look!
Faster and significantly lighter than the Hartzell, specifically
developed for RV's and with no RPM limitations. Take a look at the
review carried out in the RVaitor in 2005.
Cheers,
Greg Blakey (FADEC IOF360-M1B and WhirlWind 200RV)
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: RV-7 engine/prop optionsRV-7 engine/prop options |
I have a question regarding engine mounts. Is there a requirement for a
different engine mount when using prop extensions? Van's has (had) two
different mounts available and my impression was that the one was for a
longer engine prop combination.
Robert Seccombe
Future -7 builder.
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: | RV-7 engine/prop optionsRV-7 engine/prop options |
Nope!...I have a feeling the mount for the o320 might be longer than for
the 0360...i.e lighter engine is moved further forward for correct
balance.
I vaguely remember reading this somewhere...But no an o360 with a prop
extension would use the same mount as an o360 without an extension
Frank 7a
________________________________
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com] On Behalf Of Robert
Sent: Tuesday, April 24, 2007 8:48 AM
Subject: Re: RV7-List: RV-7 engine/prop optionsRV-7 engine/prop options
I have a question regarding engine mounts. Is there a requirement for a
different engine mount when using prop extensions? Van's has (had) two
different mounts available and my impression was that the one was for a
longer engine prop combination.
Robert Seccombe
Future -7 builder.
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: RV-7 engine/prop optionsRV-7 engine/prop options |
That's the answer Van's gave me when I called a few weeks ago: the 320
mount moves the engine forward for cg reasons.
Charlie
Hinde, Frank George (Corvallis) wrote:
> Nope!...I have a feeling the mount for the o320 might be longer than for
> the 0360...i.e lighter engine is moved further forward for correct balance.
>
> I vaguely remember reading this somewhere...But no an o360 with a prop
> extension would use the same mount as an o360 without an extension
>
> Frank 7a
>
> ------------------------------------------------------------------------
> *From:* owner-rv7-list-server@matronics.com
> [mailto:owner-rv7-list-server@matronics.com] *On Behalf Of *Robert
> *Sent:* Tuesday, April 24, 2007 8:48 AM
> *To:* rv7-list@matronics.com
> *Subject:* Re: RV7-List: RV-7 engine/prop optionsRV-7 engine/prop options
>
> I have a question regarding engine mounts. Is there a requirement for a
> different engine mount when using prop extensions? Vans has (had) two
> different mounts available and my impression was that the one was for a
> longer engine prop combination.
>
>
>
> Robert Seccombe
>
> Future -7 builder.
>
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! --
|