Kelly,
I would be pretty difficult to remove the NANCA since it is part of the
fuselage, but it actually opens up depth and width as it goes back. My new scoop basically bolts on the
front end of the existing scoop, and is quit different than the first one.
Attached are some photos that I took today of the new scoop (green – not
finished) sitting on the removable landing gear cover that forms part of the
NACA scoop. The new scoop mounts
to the landing brake cover in the position shown and buts up to the existing
entrance scoop. You can see that
the scoop excludes the bottom 2” of boundary layer air, and also the submerged
portion of the NACA scoop. This
should only allow in the higher speed, clean air. How much drag it creates remains to be seen.
If it works, I’ll fill, and finish it. I plan to try it out tomorrow.
Steve Brooks
-----Original
Message-----
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net]On Behalf
Of keltro@att.net
Sent: Thursday, July 15, 2004
12:45 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: New Scoop
Steve,
I may have missed something
in the fury of posts but does your current version
of scoop still have the funnel like taper
from the opening to the NACA inlet?
If so this will be a major
bottleneck and restrict airflow. To make your new scoop
work efficiently you may have to open up
(remove) the NACA inlet. IMHO
Kelly Troyer
--
Dyke Delta/13B/RD1C/EC2
--------------
Original message from "Steve Brooks" :
--------------
Snip.
What I'm trying to do is
augment the existing scoop, with a "bolt on" scoop ahead of it, which
will capture air outside of the boundary layer, i.e. high speed air, to improve
cooling.
I made a scoop first, that
while it worked somewhat, does not exclude the boundary layer air. Also it's kind of like a funnel, with
the largest are at the opening and tapering down into the existing scoop.
I hope that makes some
sense.
Steve Brooks