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Doug,
3 more pics.
Note I added 2.5" full length to the rudder trailing edge also added to the bottom to match the ventral fin. Also added a few inches to the rudder counter balance length which allowed less weight for balance.
I used pink home depot foam for the rudder and ventral fin mod. I went 2 bid on glass so it is light. If I were to do it again I would have gone 4 bid. Airplane needed tail weight anyway...
I have plenty of rudder on initial take off power.
I have the 320/360 gear so my airplane is a little taller. Some guys have scuffed the rudder on take off and landing with the original 235 gear legs with the ventral fin mod so keep that in mind.... FWIW..
Randy Snarr
N694RS
--- On Tue, 8/11/09, Doug Baleshta <dbaleshta@tru.ca> wrote:
From: Doug Baleshta <dbaleshta@tru.ca>
Subject: [LML] Re: p-factor takeoff in 235/320
To: lml@lancaironline.net
Date: Tuesday, August 11, 2009, 4:13 AM
Do any of you folks with the extended
ventral fin have a picture you can share?
Thanks
Doug
>>> Earl Schroeder <earleschroeder@yahoo.com>
08/10/09 6:57 PM >>>
I'm another 235/320 driver that added the ventral fin that
extends the length of the rudder. I did not add the
trailing edge full length.
So far, I've had enough rudder to maintain runway heading
using the gradual throttle (as I too was taught many years
ago). Use caution and apply rudder quickly on a go
around as this caused an unwanted left turn recently.. I
blame not paying attention...seeing the windscreen fill with
tree tops brought me back to reality!
Earl
________________________________
From: randy snarr <randylsnarr@yahoo.com>
To: lml@lancaironline.net
Sent: Monday, August 10, 2009 5:18:49 PM
Subject: [LML] Re: p-factor takeoff in 235/320
I did as Gary described but also added 3" to the trailing
edge of the rudder full length.
I can nail the power on take off and have no trouble
keeping the airplane heading down the center line. FWIW,
I was taught to add power gradually which I do, usually
anyway...
Randy Snarr
N694RS
235/320
--- On Mon, 8/10/09, Gary Edwards <gary21sn@hotmail.com>
wrote:
> From: Gary Edwards <gary21sn@hotmail.com>
> Subject: [LML] Re: p-factor takeoff in 235/320
> To: lml@lancaironline.net
> Date: Monday, August 10, 2009, 1:15 PM
> > > > > > > > > > > > The 235 airframe has a small rudder compared the
> 320/360 series. A > majority of 235 builders have added the ventral fin to
the
> bottom of the > fuselage and added the same amount to the bottom of
the
> rudder. This > rudder addition adds about 20% more surface area to
the
> rudder and helps > significantly during the takeoff for airframes
> with 320's.
> > Doing as you have done, adding power slowly in
> the initial takeoff > roll, is still required even with the added amount to
the
> rudder. On > occasion, full right rudder will still not be enough
to
> overcome the 320 > overpowering the 235 airframe. Particularly if
there
> is a bit of > crosswind.
> > Gary Edwards
> LNC2 > > ----- Original Message
> ----- > From: terrence > o'neill > To: lml@lancaironline.net
> > Sent: Monday, August
> 10, 2009 8:41 > AM
> Subject: [LML]
> p-factor takeoff in > 235/320
> > > Hey! It works... slow > application of throttle with full
right rudder, then
> gradually reducing rudder > .
> I just
> pretend I'm in a > P-51. : )
> Thanks
> to all for the > suggestions.
> > Terrence
> L235/320 > N211AL > --
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