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Date: Sat, 2 Mar 2013 12:28:43 -0600
Message-ID: <CAH_WSmrSdZ9zAHTNn4em=Cq_JHf-8MCQe+YBJR1hdKPN3PWxrQ@mail.gmail.com>
Subject: Re: [FlyRotary] P-51 type belly scoops
From: Thomas Mann <thomasmann51@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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The P-51 Scoop is how I plan on cooling my 20B (Long-EZ)

I scaled down the drawings of the original P-51 plans in Auto CAD and fit
it into my plan drawing and it looks as though it will make for a nice
compact design.

The original P-51 design splits the airfow sending a portion to the oil
cooler and the rest to the radiator. Both have a controlable exhaust door
to meter the airflow leaving the unit.

The original P-51 has no thermostat. Temperature is regulated by the
position of the exhaust door. On takeoff and landing the doors are wide
open. The rest of the time they are automatically controlled to regulate
the temperatures.

I'm just about to the point where I will be flipping my bird on it's back
in order to install the cooling system.

The P-51 design (if done correctly) can create enough thrust to cancel out
90% of the drag caused by the scoop.

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<div>The P-51 Scoop is how I plan on cooling my 20B (Long-EZ) </div><div>=
=A0</div><div>I scaled down the drawings of the original P-51 plans in Auto=
 CAD and fit it into my plan drawing and it looks as though it will make fo=
r a nice compact design.</div>
<div>=A0</div><div>The original P-51 design splits the airfow sending a por=
tion to the oil cooler and the rest to the radiator. Both have a controlabl=
e exhaust door to meter the airflow leaving the unit. </div><div>=A0</div><=
div>
The original P-51 has no thermostat. Temperature is regulated by the positi=
on of the exhaust door. On takeoff and landing the doors are wide open. The=
 rest of the time they are automatically controlled to regulate the tempera=
tures.</div>
<div>=A0</div><div>I&#39;m just about to the point where I will be flipping=
 my bird on it&#39;s back in order to install the cooling system.</div><div=
>=A0</div><div>The P-51 design (if done correctly) can create enough thrust=
 to cancel out 90% of the drag caused by the scoop.</div>

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