REFLECTOR: Top NACA Inlets

[KMis178813 at aol.com]

Larry
   I installed the only other Deltahawk on a Velocity, other than  themselves 
(as far as I know). From my experience, there is no way that the  stock top 
NACA scoops will give adequate airflow to keep the coolant, or  oil coolers, 
cool. I also don't believe that it will be enough to keep the inter  cooler 
sufficiently cool. We had a hard time doing this as I wanted low cooling  drag and 
Deltahawk wanted a lot of cooling. I went with my theory to make it low  
drag. I eventually (after some engine damage from heat) moved to Doug's way of  
thinking and kept it cool. If you are going to go with the stock NACA  scoops, 
have a Plan B for changing them in the future. They use a lot of  air!!!!
 
Just my .02 cents.
 
Ken
 
 
 
In a message dated 4/19/2008 12:13:48 P.M. Eastern Daylight Time,  
ljepstein at hotmail.com writes:

I am about to put in the NACA inlets on the top.  (I have an older "SE" 
fuselage). I am doing this by cutting out the shape,  except the forward edge, then 
flexing the cut out down and glassing the sides.  Scott sent me a template 
for the shape, but did not specify the depth of the  inlet at the aft end.

Could someone give me the depth (measured from  the outer fuselage skin to 
the "outside" skin or the "floor") of the inlet at  the firewall?  

This is for a Standard fuselage with a Lycoming  (actually, it is for the 
inverted Deltahawk, but will be using the same  inlets)..

Thanks

Larry Epstein
173 FGE




 
____________________________________
> Date: Tue, 1 Apr 2008 17:11:59 -0700
> From:  doug.holub at tx.rr.com
> To: reflector at tvbf.org
> Subject: Re:  REFLECTOR: antenna mounting
> 
> I installed that same ELT a  couple of weeks ago. I made a copper foil 
dipole with each leg the length of  the external antenna. Picture attached.
> 
> ---- Lou Stedman  <stedmanlou at adelphia.net> wrote: 
> > I purchased a Ameri-King  AK-450 ELT from ACS to replace my old ELT. Now 
I need to mount an external  antenna. According to the instructions a 
fiberglass aircraft needs a  supplemental ground plane with a minimum diameter of 36". 
That is huge. I  called the manufacturer and was told that 36" was overkill. 
They say 18" will  do. Have any of you guys installed this unit? If so where 
did you install the  unit and antenna and how? Thanks for your input.
> > 
> >  Lou Stedman
> > Velocity N7044Q
> > Olean,  NY
=

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