REFLECTOR: Turn Coordinator

[Laurence Coen]

Bud,

Didn't say you need one.  I did suggest your nuts if you don't have one.

Larry Coen
N136LC

--------------------------------------------------
From: "Bud Williams" <rambud at windstream.net>
Sent: Thursday, March 12, 2009 1:14 PM
To: "'Velocity Aircraft Owners and Builders list'" <reflector at tvbf.org>
Subject: Re: REFLECTOR: Turn Coordinator

> You do NOT need a yaw (slip/skid) indicator for VFR. In fact you do NOT
> require ANY bank or slip/skid indicator for VFR. 91.205 contains what is
> required for VFR day/night, IFR, and flight at and above FL240.
>
> VFR (day):
> Airspeed indicator
> Altimeter
> Magnetic direction indicator
> Tachometer
> Oil pressure gauge (for engines using pressure system)
> Temperature gauge (liquid cooled engines)
> Oil temperature gauge (air cooled engines)
> Manifold pressure gauge (altitude engines)
> Fuel gauge indicating quantity in each tank
> Landing gear indicator (retractable gear)
>
> VFR (night) all of the above plus:
> Approved position lights
> Anti-collision lights
> Adequate source of electrical energy for all electrical equipment
> One spare set of fuses or 3 spare fuses of each kind that are accessible 
> to
> the pilot in flight
>
> Note: this does not include things such as shoulder harnesses, seat belts,
> ELTs etc...I chose only to address the instruments and electric
> requirements. Note also that a landing light is technically NOT required
> since we can't fly these planes for hire
>
> IFR :
> All of the above (VFR day AND night) plus:
> Two-way radio communication system and navigational equipment appropriate 
> to
> the ground facilities to be used (note that flight into Class B airspace
> requires a VOR)
> Gyroscopic rate of turn indicator (there IS an exception to this, but it
> requires a third attitude instrument system usable through 360 degrees of
> pitch and roll)
> Slip-skid indicator
> Sensitive altimeter adjustable for barometric pressure
> A clock displaying hours, minutes, and seconds
> Generator or alternator of adequate capacity
> Gyroscopic pitch and bank indicator (artificial horizon)
> Gyroscopic direction indicator
>
> Not sure what you meant by "backup gyro", but as you can see, you are
> required to have three separate gyroscopic instruments for IFR flight. 
> EFIS
> systems are able to satisfy the gyroscopic requirements through either
> actual gyros, electronic gyros, or in some cases, ring laser gyros.
>
> So to answer the original question of do you need a turn coordinator, the
> answer is no. You do not need a turn COORDINATOR EVER, but you WILL 
> require
> at least a turn INDICATOR if you plan to fly IFR (or want to sell the
> airplane, since there are probably few people who would want to buy an
> airplane of this capability in a bare-bones VFR configuration).
>
> Bud
>
>
> -----Original Message-----
> From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
> Behalf Of Scott Derrick
> Sent: Thursday, March 12, 2009 9:09 AM
> To: Velocity Aircraft Owners and Builders list
> Subject: Re: REFLECTOR: Turn Coordinator
>
> You need a backup gyro for IFR. You need a Yaw(slip/skid)
> indicator(ball) for VFR basic instrument package.
> You can use a 2nd AI for the backup gyro, I use a Dynon D10-A for both
> backup and Yaw.
>
> And you do use the rudders, in the pattern and for quick turns.  She's
> pretty ungainly at 100 knots making a turn to base or final with the use
> of rudders.
>
> Slipping on descent or final to increase your descent definitely
> requires the rudders.
>
> Also in turbulence at cruise speeds you can smooth things out a bit with
> judicial use of the rudders.
>
> Scott
>
> Velocity wrote:
>> This may be a dumb Question but I will ask it any ways.
>> Do we need a turn coordinator in our plane?
>>   I have been told that you really do not use the rudders (Vertical
>> Stabilizer)
>> on this plane so what would the need be for the Turn coordinator?
>> Extra Gyro???
>>
>> Ron
>> ------------------------------------------------------------------------
>>
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