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1. 02:25 AM - Re: Thrust lines (Tony &Heather Oldman)
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| Subject: | Re: Thrust lines |
When setting the Mk111 up I found the best all round performance was when t
he thrust line was set so that at cruise RPM a reduction of 200 rpm there i
s a slight nose up fell. This is so slight that when someone else is flying
the aircraft you have to demenstrate the nose up with power reduction. =C2
- There are no noticable adverse problems when taking off or landing eith
er two up or solo at any power setting . Prop pitch is set so that RPM foll
ows the trottle. There is no throttle lag ,this gives a very good rate of c
limb of about 1000 fpm at QNH with a 503 at about 20c .The fact that the no
se comes up with a power reduction would suggest that the rear of the engin
e is high in relation to the thrust line.Hope this is usfull for someone.
Downunder503 NK111 classic
On Friday, 23 September 2016 10:43 AM, Bill Berle <victorbravo@sbcgloba
l.net> wrote:
Apparently the aileron interference problem is solved by moving the aileron
one way or another during assembly, so it is now a non-issue. I will be go
ing out to the hangar this evening to test that theory !
Bill Berle
www.ezflaphandle.com=C2- - safety & performance upgrade for light aircraf
t
www.grantstar.net =C2- =C2- =C2- =C2- =C2- - winning proposals fo
r non-profit and for-profit entities
--------------------------------------------
On Thu, 9/22/16, mojavjoe@comcast.net <mojavjoe@comcast.net> wrote:
Subject: Re: Kolb-List: Thrust lines
To: "kolb-list" <kolb-list@matronics.com>
Date: Thursday, September 22, 2016, 3:21 PM
It seemed to me that this
discussion started about raising the HKS=C2-engine to clear
the exhaust on one side. Couldn't those washers be used
on that one=C2-side to raise it the required distance while
raising the thrust line only half that distance.
Joe
From: "John
Hauck" <jhauck@elmore.rr.com>
To: "kolb-list"
<kolb-list@matronics.com>
Sent:
Thursday, September 22, 2016 1:25:45 PM
Subject: RE: Kolb-List: Thrust lines
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#yiv7640047964 As I was reading my msg below, not
only did I think of another experiment I did, I also noticed
I misspelled "different".=C2-To counteract adverse yaw on my
original Firestar I elongated the engine mounting holes to
allow me to twist the engine and change the thrust line
laterally.=C2- That experiment
didn't prove anything either, but cost me a new mounting
plate.=C2-john hmkIIIRock House,
Oregon=C2-From:
owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of John
Hauck
Sent: Thursday,
September 22, 2016 11:15 AM
To:
kolb-list@matronics.com
Subject: RE: Kolb-List:
Thrust lines=C2-Boyd
Y/Kolbers:=C2-Early on I experimented with
changing the thrust line, both up and down, front and rear,
with as much as 5/8ths inch difference from stock
position.=C2- After a lot of wrenching
and flying, I put things back to where they belonged.=C2- I found no dif
ference in airspeed, pitch
trim, or anything else.=C2-Much like my experiments with the
leading edge of the upper vertical stabilizer.=C2- After a lot of drilli
ng and riveting
difference positions to try and counteract adverse yaw, I
ended up back where I started.=C2-Homer and Dennis did a good job
designing the MKIII original.=C2-john hmkIIIRock House,
Oregon=C2-From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]
On Behalf Of B
Young
Sent: Thursday,
September 22, 2016 9:40 AM
To: kolb-list@matronics.com
Subject: Re: Kolb-List:
Thrust lines=C2-Pat
If the pusher
engine is not mounted in line with flight,=C2-=C2-=C2- did you
raise the front or the back to eliminate the nose over
tendency?=C2- Also that is the trim difference in straight and
level flight,=C2- with the front raised vs having the back
raised????Boyd...........................The prop was mounted like the Kol
b
as a high pusher to keep it out of the spray when landing in
the sea. The pilot was at great pains to explain the
importance of setting up the engine at the correct angle
which was NOT parallel to the flight line.=C2-Set up wrongly
full chat at takeoff could stuff your nose into the
water.
Pat
S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
On Friday, 23 September 2016 10:43 AM, Bill Berle <victorbravo@sbcgl
obal.net> wrote:
Apparently the aileron interference problem is solved by moving the aileron
one way or another during assembly, so it is now a non-issue. I will be go
ing out to the hangar this evening to test that theory !
Bill Berle
www.ezflaphandle.com=C2- - safety & performance upgrade for light aircraf
t
www.grantstar.net =C2- =C2- =C2- =C2- =C2- - winning proposals fo
r non-profit and for-profit entities
--------------------------------------------
On Thu, 9/22/16, mojavjoe@comcast.net <mojavjoe@comcast.net> wrote:
Subject: Re: Kolb-List: Thrust lines
To: "kolb-list" <kolb-list@matronics.com>
Date: Thursday, September 22, 2016, 3:21 PM
It seemed to me that this
discussion started about raising the HKS=C2-engine to clear
the exhaust on one side. Couldn't those washers be used
on that one=C2-side to raise it the required distance while
raising the thrust line only half that distance.
Joe
From: "John
Hauck" <jhauck@elmore.rr.com>
To: "kolb-list"
<kolb-list@matronics.com>
Sent:
Thursday, September 22, 2016 1:25:45 PM
Subject: RE: Kolb-List: Thrust lines
#yiv7640047964 #yiv7640047964
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=C2-=C2-=C2- {}
#yiv7640047964 As I was reading my msg below, not
only did I think of another experiment I did, I also noticed
I misspelled "different".=C2-To counteract adverse yaw on my
original Firestar I elongated the engine mounting holes to
allow me to twist the engine and change the thrust line
laterally.=C2- That experiment
didn't prove anything either, but cost me a new mounting
plate.=C2-john hmkIIIRock House,
Oregon=C2-From:
owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of John
Hauck
Sent: Thursday,
September 22, 2016 11:15 AM
To:
kolb-list@matronics.com
Subject: RE: Kolb-List:
Thrust lines=C2-Boyd
Y/Kolbers:=C2-Early on I experimented with
changing the thrust line, both up and down, front and rear,
with as much as 5/8ths inch difference from stock
position.=C2- After a lot of wrenching
and flying, I put things back to where they belonged.=C2- I found no dif
ference in airspeed, pitch
trim, or anything else.=C2-Much like my experiments with the
leading edge of the upper vertical stabilizer.=C2- After a lot of drilli
ng and riveting
difference positions to try and counteract adverse yaw, I
ended up back where I started.=C2-Homer and Dennis did a good job
designing the MKIII original.=C2-john hmkIIIRock House,
Oregon=C2-From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]
On Behalf Of B
Young
Sent: Thursday,
September 22, 2016 9:40 AM
To: kolb-list@matronics.com
Subject: Re: Kolb-List:
Thrust lines=C2-Pat
If the pusher
engine is not mounted in line with flight,=C2-=C2-=C2- did you
raise the front or the back to eliminate the nose over
tendency?=C2- Also that is the trim difference in straight and
level flight,=C2- with the front raised vs having the back
raised????Boyd...........................The prop was mounted like the Kol
b
as a high pusher to keep it out of the spray when landing in
the sea. The pilot was at great pains to explain the
importance of setting up the engine at the correct angle
which was NOT parallel to the flight line.=C2-Set up wrongly
full chat at takeoff could stuff your nose into the
water.
Pat
S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
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