Today's Message Index:
----------------------
1. 10:02 AM - Prop Clearance (Steve Sampson)
2. 06:37 PM - Re: Prop Clearance (rob ray)
3. 06:51 PM - Re: Prop Clearance (CBRxxDRV@aol.com)
Message 1
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--> RV4-List message posted by: "Steve Sampson" <SSampson.SLN21@london.edu>
I am just wonderig how much of an issue the RV-4 has with pop ground clearance.
Since I am building it new it will have the longer gear legs. My plan is to use
a 2 blade constant speed MT with an IO-320. It is 72" dia. (I could go to the
3 blade which would gain me 1/2" since it is 71" dia. but would rather not.)
I notice the FP from Sensenich are all 70" for this application.
My question: Is the clearance issue so critical that gaining the extra 1/2" is
worthwhile. The wood/glass blades of an MT are not as 'wear' resistant as a metal
prop.
Thoughts? Steve
Steve
RV4 No.4478
PA18 G-BVMI
RV-9A G-IINI (sold)
Message 2
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| Subject: | Re: Prop Clearance |
--> RV4-List message posted by: rob ray <smokyray@yahoo.com>
Steve,
With 7 RV4 buddies and all different combinations of props, I can tell you the
following. The 72" Hartzell on short gear is fine for most applications. With
the long gear 72" props have excellent clearance although forward visibility
on the ground is reduced compared to short gear. I have a 68" prop on short gear
and have had no problems in off field landings. I also have extensively flown
a 180 C/S 72" Hartzell on short gear off airport with no problems either,
just more prop grass stains. Long gear with the 72" MT should be outstanding.
Rob Ray
Steve Sampson <SSampson.SLN21@london.edu> wrote:
--> RV4-List message posted by: "Steve Sampson"
I am just wonderig how much of an issue the RV-4 has with pop ground clearance.
Since I am building it new it will have the longer gear legs. My plan is to use
a 2 blade constant speed MT with an IO-320. It is 72" dia. (I could go to the
3 blade which would gain me 1/2" since it is 71" dia. but would rather not.)
I notice the FP from Sensenich are all 70" for this application.
My question: Is the clearance issue so critical that gaining the extra 1/2" is
worthwhile. The wood/glass blades of an MT are not as 'wear' resistant as a metal
prop.
Thoughts? Steve
Steve
RV4 No.4478
PA18 G-BVMI
RV-9A G-IINI (sold)
---------------------------------
Message 3
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| Subject: | Re: Prop Clearance |
--> RV4-List message posted by: CBRxxDRV@aol.com
In a message dated 10/28/2005 1:04:20 PM Eastern Standard Time,
SSampson.SLN21@london.edu writes:
> I am just wonderig how much of an issue the RV-4 has with pop ground
> clearance. Since I am building it new it will have the longer gear legs. My plan
is
> to use a 2 blade constant speed MT with an IO-320. It is 72" dia. (I could
> go to the 3 blade which would gain me 1/2" since it is 71" dia. but would
> rather not.)
>
> I notice the FP from Sensenich are all 70" for this application.
>
> My question: Is the clearance issue so critical that gaining the extra 1/2"
> is worthwhile. The wood/glass blades of an MT are not as 'wear' resistant as
> a metal prop.
>
> Thoughts? Steve
>
> Steve
>
Well.......I have a RV-4 with the dreaded short legs :) and a 72" CS.
Seems just fine to me. No issue of clearance in the year and a half I have
flown it and I have had it on grass as well as asphalt.
do not archive
RV-4
RV-8 QB .... Fuselage/panel
Sal Capra
Lakeland, FL
My Home Page
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