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Date: Thu, 30 Jun 2011 07:51:17 -0400
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Subject: Re: [LML] Re: Fin
From: Terrence O'Neill <troneill@charter.net>
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No excuse for aft CG.  Ballast can always be added.
T

On Jun 29, 2011, at 2:49 PM, Ted Noel wrote:

> This also suggests that gear extension should be part of stall =
recovery.
>=20
> Ted Noel
> N540TF
>=20
> On 6/29/2011 11:26 AM, Giffen Marr wrote:
>> Before I started to build my IV-P, I reviewed the accident history of =
the IV.What I found was a significant number of stall spin accidents in =
the IV. Why a higher rate then other aircraft? =46rom my analysis, I =
felt there were two reasons, one,the aircraft tended to have an aft CG, =
and two, the tail became blanketed in the spin, causing difficulty in =
recovery. My un-flown solution was to move as much weight forward as I =
could, add stall strips, add the ventral fin and add about 48 square =
inches of area to the rudder trailing edge. You must also remember that =
when you retract the gear, the cg moves aft about 2 inches. With an aft =
CG, the aircraft will tend to go flat in the spin, which makes recovery =
difficult.
>>=20
>> Giff Marr
>> N229GM
>> 1st engine run before AirVenture.
>> --
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>>=20
>>=20
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>>=20
>>=20
>>=20
>=20
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