Today's Message Index:
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1. 07:45 AM - Re: Warpdrive ! Scotty! (rtmarshall)
2. 08:20 AM - Re: Warpdrive ! Scotty! (Lowell Fitt)
3. 07:41 PM - Warp drive // Scotty!! (rtmarshall)
Message 1
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| Subject: | Re: Warpdrive ! Scotty! |
Sacha, I will probably sell the GSC for a very fair price, contact me
off list, I am going to be gone for a few days and will be out of touch.
Bob
rtav8or2@psln.com
Toodie & Bob Marshall
Beckwourth, CA
KF/4/1200 flying
From: Sacha
Sent: Friday, March 01, 2013 10:41 PM
To: kitfox-list@matronics.com
Subject: Re: Kitfox-List: Warpdrive ! Scotty!
That's great info... Lowell/All, what kind of cruise characteristics
(speed, rpm, fuel consumption) do you get out of it?
I am actually looking for a prop for a Kitfox IV - 80hp. Thinking Warp
or Ivoprop or a wooden one by a local maker. I'd also consider a second
hand one if anyone has one they want to sell?
Sacha
On Mar 2, 2013, at 4:45, "Lowell Fitt" <lcfitt@sbcglobal.net> wrote:
Toodie and bob,
My Model IV - 80 HP with 68" Warp prop is pitched at 23=C2=B0. My
climb RPM is not as great as Rick's - 5200 but and I am still fairly
early in the flying on this airplane - 45 hours. Things may change, but
I often see 1300 fpm climb and cruise is pretty good.
Lowell
From: Richard Weiss
Sent: Friday, March 01, 2013 6:48 PM
To: kitfox-list@matronics.com
Subject: Re: Kitfox-List: Warpdrive ! Scotty!
Toodie and Bob,
I have my Warp Drive prop set for 17 degrees. It seems the
engine/plane combination is 'comfortable' at the pitch setting. It's
very smooth and I get about 5600--5700 RPM on take off, although takeoff
is so quick I barely have time to look at the tach.
Rick Weiss
Series V (Skystar s/n 1) Speedster:-)
Rotax 912S, Dynon Sky View
Spruce Creek Fly In, FL
MDKitfox@aol.com
On Mar 1, 2013, at 6:52 PM, rtmarshall wrote:
Hello Kitfox flyers out in the hinterland, I am sure there is a
segment of the group that use's the 70" warpdrive prop on their 80HP KF.
As a starting point for pitch what seems to be the # ? I am
thinking around 21* pitch, might be too much " what does the group
think? Thanks much for your input and thoughts on the subject. Blue
Skies.
Toodie & Bob Marshall
Beckwourth, CA
KF/4/1200 flying
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| Subject: | Re: Warpdrive ! Scotty! |
Sacha,
Most of my numbers are very preliminary. And after flying the actual
test phases, it was mostly to put the required 40 hours on it and I
throttled back because distance was not as important as time and I
didn't want to burn more gas than was necessary. So numbers are not
finalized.
I was getting about 100 mph at 5000 RPM. During the test phase in
probably 85-90 degree days, climb was very close to 1000 fpm. The 1300
I mentioned was at a temp in the high 50s to low 60s. As I do the
longer cross country flights fuel burn will be more apparent. I chose
the 68" prop because that is what was recommended by the guys I knew
that have been running the Warp prop.
One issue I did have with the Warp Prop is that one blade would change
pitch one degree after running for a short while. I would re-pitch it
and it would change the one degree again. I contacted Warp and this is
there explanation. The aluminum collar is placed in the mold and the
resin and fabric are the inserted and cured under pressure.
Occasionally the resin will shrink away from the aluminum collar. He
explained that is the reason for the holes drilled through the collar at
180=C2=B0. The resin is supposed to run into the holes and act as a
pinning mechanism. Apparently this was not working on my prop and he
suggested I pin with aluminum pins.
I drilled two 3/16" holes through the collar and into the hub about 3/8"
deep. and about an inch from the hub end. I cut two pins of 3/16"
aluminum and glued them in the holes with a structural adhesive. I
have to say here that this is what I did as I forgot to ask him for the
factory recommended procedure. If anyone else is having this problem, I
would suggest calling for the exact recommendations.
Lowell
From: Sacha
Sent: Friday, March 01, 2013 10:41 PM
Subject: Re: Kitfox-List: Warpdrive ! Scotty!
That's great info... Lowell/All, what kind of cruise characteristics
(speed, rpm, fuel consumption) do you get out of it?
I am actually looking for a prop for a Kitfox IV - 80hp. Thinking Warp
or Ivoprop or a wooden one by a local maker. I'd also consider a second
hand one if anyone has one they want to sell?
Sacha
On Mar 2, 2013, at 4:45, "Lowell Fitt" <lcfitt@sbcglobal.net> wrote:
Toodie and bob,
My Model IV - 80 HP with 68" Warp prop is pitched at 23=C2=B0. My
climb RPM is not as great as Rick's - 5200 but and I am still fairly
early in the flying on this airplane - 45 hours. Things may change, but
I often see 1300 fpm climb and cruise is pretty good.
Lowell
From: Richard Weiss
Sent: Friday, March 01, 2013 6:48 PM
To: kitfox-list@matronics.com
Subject: Re: Kitfox-List: Warpdrive ! Scotty!
Toodie and Bob,
I have my Warp Drive prop set for 17 degrees. It seems the
engine/plane combination is 'comfortable' at the pitch setting. It's
very smooth and I get about 5600--5700 RPM on take off, although takeoff
is so quick I barely have time to look at the tach.
Rick Weiss
Series V (Skystar s/n 1) Speedster:-)
Rotax 912S, Dynon Sky View
Spruce Creek Fly In, FL
MDKitfox@aol.com
On Mar 1, 2013, at 6:52 PM, rtmarshall wrote:
Hello Kitfox flyers out in the hinterland, I am sure there is a
segment of the group that use's the 70" warpdrive prop on their 80HP KF.
As a starting point for pitch what seems to be the # ? I am
thinking around 21* pitch, might be too much " what does the group
think? Thanks much for your input and thoughts on the subject. Blue
Skies.
Toodie & Bob Marshall
Beckwourth, CA
KF/4/1200 flying
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| Subject: | Warp drive // Scotty!! |
Hi all, Roger, Richard, Lowell and others who responded to my
request for info on the initial pitch setting on the warp drive prop, I
flew the ship with the other wood prop and obtained some preliminary
numbers, but as all things go I was unable to fly today with the warp
drive due to very gusty Xwinds and very unstable air mass over us, up
here in the sierras, maybe in the early hrs tomorrow before the front
gets here, I am trying to get as close as possible to the same
conditions for a fair comparison between the two props. Thanks again.
Toodie & Bob Marshall
Beckwourth, CA
KF/4/1200 flying
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