Today's Message Index:
----------------------
1. 05:15 PM - 4 blade prop - Rick Girard (Jimmy Young)
2. 05:50 PM - Re: 4 blade prop - Rick Girard (Richard Girard)
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: | 4 blade prop - Rick Girard |
Rick,
I noticed while I was culling through the non-Kolb related discussions of the last
two days that you have a 4-bladed prop with a 4-1 redrive. Just curious, what
is the length on that prop, the manufacturer, and what was the reason you
went with it? Did you ever have a 2 or 3 blade prop on the same engine/plane?
I'm asking to learn, not trying to be critical in any way.
--------
Jimmy Young
Missouri City, TX
Kolb FS II/HKS 700
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=317922#317922
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: 4 blade prop - Rick Girard |
I bought my plane from a couple of helicopter instructors at Ft Rucker in
Alabama and it came with a three blade 68" WD with tapered blades. When
those blades were damaged by contacting the flap bell cranks hitting the
face of the prop blades I decided to step back to a 66" diameter as
recommended in the plans and did not get the new blades tapered. I also
acquired a two blade hub off eBay and tried that for about a day, but didn't
like the vibration level and went back to the three blade. That is what I
have on the Kolb at this time.
On my HKS powered trike I have a 68" four blade Powerfin with "F" blades. I
have the 3.45 gearbox on that engine. Very quiet, especially when I keep the
engine throttled back when I'm flying with the big wing on. I rarely run the
engine faster than 4900 RPM in cruise with that wing.
I haven't tried the Powerfin with the Kolb yet, although I'd like to before
I put the plane up for the winter, mostly because the folks at WD tell me
the one I have is completely wrong for my engine / gearbox combo. So now I'm
wondering if there is some performance to be had with more blade area and
I'm lucky enough to have a prop I can try without having to spend any money
to do it. So the most I can tell you at this time is that I'll let you know
how it works out.
Rick
On Tue, Nov 2, 2010 at 7:13 PM, Jimmy Young <jdy100@comcast.net> wrote:
>
> Rick,
>
> I noticed while I was culling through the non-Kolb related discussions of
> the last two days that you have a 4-bladed prop with a 4-1 redrive. Just
> curious, what is the length on that prop, the manufacturer, and what was the
> reason you went with it? Did you ever have a 2 or 3 blade prop on the same
> engine/plane? I'm asking to learn, not trying to be critical in any way.
>
> --------
> Jimmy Young
> Missouri City, TX
> Kolb FS II/HKS 700
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=317922#317922
>
>
--
Zulu Delta
Kolb Mk IIIC
582 Gray head
4.00 C gearbox
3 blade WD
Thanks, Homer GBYM
It is not bigotry to be certain we are right; but it is bigotry to be unable
to imagine how we might possibly have gone wrong.
- G.K. Chesterton
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! --
|