LNC2 W&B

Submitted by Anonymous on

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From: Gil Cargill <gil [at] gilcargill.com>
Sender: <marv [at] lancaironline.net>
Subject: LNC2 W&B
Date: Mon, 02 Jun 2014 09:08:03 -0400
To: <lml [at] lancaironline.net>
My plane is nose heavy. I've heard about builders who put lead into the tail below the vertical stabilizer. Does anyone have experience doing this? And would you mind sharing exactly how to go about adding weight to the tail of the plane.

--


Gil Cargill
Cargill Consulting Group, Inc.
310.447.4102

LNC2 W&B

Submitted by Anonymous on

From: <Sky2high [at] aol.com>
Subject: Re: [LML] LNC2 W&B
Date: Mon, 2 Jun 2014 09:44:08 -0400 (EDT)
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message

Gil,
 
How much is it nose heavy.  LNC2's flight regimes tend to favor fwd
CG, depending on configuration.  Perhaps you could list your "options"
and W&B info...... i.e. how did it get the way it is?
 
Otherwise, always take a heavy passenger along.
 
Grayhawk
 
In a message dated 6/2/2014 8:08:11 A.M. Central Daylight Time,
gil [at] gilcargill.com writes:

My plane is nose heavy. I've heard about builders who put lead
into the tail below the vertical stabilizer. Does anyone have experience doing
this? And would you mind sharing exactly how to go about adding weight to the
tail of the plane.

--


Gil Cargill
Cargill Consulting Group, Inc.
310.447.4102

LNC2 W&B

Submitted by Anonymous on

From: Bill Harrelson <n5zq [at] verizon.net>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] LNC2 W&B
Date: Mon, 02 Jun 2014 14:09:37 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message
Gil,
 
Very unusual for a LNC2 to be too nose heavy. I’m
not familiar with your plane, has it flown yet? If not, I would certainly fly it
first. Adding weight at the tail might make the W&B numbers look good but it
adds rotational inertia to a plane that can have fairly ugly stall/spin
characteristics. Theoretically, one can achieve a particular weight and CG with
a lot of weight at either end and less in the middle or more in the middle and
less at the extremes. The later would tend to have better spin recovery
characteristics. It has been my experience with LNC2s that a full break stall
will almost always break hard one way or the other (begin rotation). If correct
recovery techniques (rudder) are not applied with alacrity, a spin can easily
develop. The more rotational inertia the harder time the rudder has stopping it.
I would suggest careful thought and perhaps consulting someone with serious
aerodynamic engineering credentials before undertaking this
modification.
 
Bill Harrelson
formerly N5ZQ 320 2,200 hrs
now        N6ZQ  IV   550
hrs
 
 
 
My
plane is nose heavy. I've heard about builders who put lead into the tail below
the vertical stabilizer. Does anyone have experience doing this? And would you
mind sharing exactly how to go about adding weight to the tail of the plane.
 

--

 
Gil Cargill
Cargill Consulting Group, Inc.
310.447.4102

LNC2 W&B

Submitted by Anonymous on

From: William Ford <willydford [at] gmail.com>
Sender: <marv [at] lancaironline.net>
Subject: LNC2 W&B
Date: Mon, 02 Jun 2014 14:09:48 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message
Hey Gil,  were you working on an LNC2 or an LEG2.  I thought that when we met in Sedona, I remember you talking about a Legacy????

William Ford
N11LL 

LNC2 W&B

Submitted by Anonymous on

From: John Cooper <snopercod [at] comporium.net>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] LNC2 W&B
Date: Mon, 02 Jun 2014 15:38:08 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message

Gil--



What Greyhawk said. The standard "fix" for a forward CG is to move
the battery aft, but before the community here can offer any
suggestions, we'd need to know more.



I just completed the W&B on my L-235 and the CG will be at the
forward limit (or beyond) with a full header tank, empty wing tanks,
no baggage, and a lightweight pilot. (With me in the plane there's
no problem.) The thing is, anything I put in my plane will
move the CG aft. If I ever intend to carry a passenger and more
fuel, it's prudent to start out with a forward CG. (Thanks to all
the folks who talked me out of moving the battery aft! Anybody want
to buy 25' of brand new 2/0 welding cable?)



--John


Gil,


 


How much is it nose heavy.  LNC2's flight regimes
tend to favor fwd CG, depending on configuration.  Perhaps
you could list your "options" and W&B info...... i.e.
how did it get the way it is?


 


Otherwise, always take a heavy passenger along.


 


Grayhawk

LNC2 W&B

Submitted by Anonymous on

From: Gil Cargill <gil [at] gilcargill.com>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] Re: LNC2 W&B
Date: Wed, 04 Jun 2014 07:33:49 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message
Thanks for the input. I am the heavy passenger.  So no problem.  The battery has been moved.  The cause is the fact that I installed a TSIO550 with a three bladed prop.  It is about 72lbs.  I did not move the engine back.  I have a standard 550 engine mount.

Gil



On Mon, Jun 2, 2014 at 12:38 PM, John Cooper <snopercod [at] comporium.net

> wrote:
Gil--



What Greyhawk said. The standard "fix" for a forward CG is to move
the battery aft, but before the community here can offer any
suggestions, we'd need to know more.



I just completed the W&B on my L-235 and the CG will be at the
forward limit (or beyond) with a full header tank, empty wing tanks,
no baggage, and a lightweight pilot. (With me in the plane there's
no problem.) The thing is, anything I put in my plane will
move the CG aft. If I ever intend to carry a passenger and more
fuel, it's prudent to start out with a forward CG. (Thanks to all
the folks who talked me out of moving the battery aft! Anybody want
to buy 25' of brand new 2/0 welding cable?)



--John


Gil,


 


How much is it nose heavy.  LNC2's flight regimes
tend to favor fwd CG, depending on configuration.  Perhaps
you could list your "options" and W&B info...... i.e.
how did it get the way it is?


 


Otherwise, always take a heavy passenger along.


 


Grayhawk





--

Good Luck and Good Selling!!!
Gil Cargill
Cargill Consulting Group, Inc.
310.447.4102

LNC2 W&B

Submitted by Anonymous on

From: Bill Harrelson <n5zq [at] verizon.net>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] Re: LNC2 W&B
Date: Wed, 04 Jun 2014 10:24:18 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message
Gil,
 
So let me see of I’m getting this right...you’re
putting a TSIO550 in a LNC2 (320/360) airframe? This is not a Legacy
(LEG2)  but a 320 (LNC2)?  Is this correct? If so, may I
ask...why?
 
Bill Harrelson
N6ZQ  IV 550 hrs
 
 
 
 
 
From: gil [at] gilcargill.com (Gil Cargill)

Sent: Wednesday, June 04, 2014 7:33 AM
To: lml [at] lancaironline.net (Lancair Mailing List)

Subject: [LML] Re: LNC2 W&B
 
Thanks for the input. I am the heavy passenger.  So no
problem.  The battery has been moved.  The cause is the fact that I
installed a TSIO550 with a three bladed prop.  It is about 72lbs.  I
did not move the engine back.  I have a standard 550 engine mount.
 
Gil


 

LNC2 W&B

Submitted by Anonymous on

From: Gil Cargill <gil [at] gilcargill.com>
Sender: <marv [at] lancaironline.net>
Subject: Re: [LML] Re: LNC2 W&B
Date: Wed, 04 Jun 2014 15:21:43 -0400
To: <lml [at] lancaironline.net>
Message Header


Undecoded Message
No it is  typo.  I have a Legacy.  (LEG2)  Sorry for the confusion.

Gil




Good Luck and Good Selling!!!

Gil Cargill
Cargill Consulting Group, Inc.
310.447.4102




On Wed, Jun 4, 2014 at 7:24 AM, Bill Harrelson <n5zq [at] verizon.net

> wrote:

Gil,
 
So let me see of I’m getting this right...you’re
putting a TSIO550 in a LNC2 (320/360) airframe? This is not a Legacy
(LEG2)  but a 320 (LNC2)?  Is this correct? If so, may I
ask...why?
 
Bill Harrelson
N6ZQ  IV 550 hrs
 
 
 
 
 
From: gil [at] gilcargill.com (Gil Cargill)

Sent: Wednesday, June 04, 2014 7:33 AM
To: lml [at] lancaironline.net (Lancair Mailing List)

Subject: [LML] Re: LNC2 W&B
 
Thanks for the input. I am the heavy passenger.  So no
problem.  The battery has been moved.  The cause is the fact that I
installed a TSIO550 with a three bladed prop.  It is about 72lbs.  I
did not move the engine back.  I have a standard 550 engine mount.
 
Gil


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