To: flyrotary@lancaironline.net
Date: Sat, 5 Jun 2004 15:17:00 -0400
Subject: Re: [FlyRotary] 5th Flight
Message-ID: <20040605.151833.-585499.10.jschuber@juno.com>
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From: Terry L Schubert <jschuber@juno.com>

Dear Steve,

I'm glad things seem to be looking better.

Your proposed front end air scoop addition will DECREASE pressure rather
than increase it.  As the air moves through your proposed scoop it will
have to speed up and the pressure will drop!  That is the reverse of what
you need to pass more air through the cooler fins.


Terry Schubert
Central States Association
Newsletter Editor
 

> 
> If my oil temperature still runs high, I think that I will make a 
> curved
> deflector, and glass it in to the shroud to divert more airflow to 
> the oil
> cooler.  If that doesn't do the trick, or raises the coolant, I will 
> add a
> front end to my air scoop, which would attach to the landing gear 
> cover.
> I'll taper it outward to increase height and width to increase the 
> air
> pressure in the intake.  I'll attach this scoop with six screws 
> into
> nutplates in the gear cover, so that I can remove it during cooler 
> weather.
> I think that if I do need it at all, it will only be during the 
> summer
> months.
> 
> The only squawk on this flight was with the front landing gear.  I 
> had to
> hit the override on the auto extension unit (AEX) to get it to 
> retract, and
> then it kept extending the gear again, even though I was flying more 
> than
> fast enough at 120 knots.  I continued flying, but had to keep 
> hitting the
> override about every 20 seconds to keep it retracted.  I found that 
> it was
> also pretty easy to tell when I hadn't hit the button, because the 
> nose
> pitches down some when the gear comes down.
> 
> Once on the ground, I found that the tube running from pitot air to 
> the AEX
> unit had come off.  I put it back on, but if I pulled on it very 
> hard at
> all, it just came off again.  The hose passes through a hole in the 
> plastic
> case and slides onto a nipple inside the box.  I finally decided to 
> put a
> little RTV on the hose where it passed through the plastic case to 
> hold it
> in place.  It was either that, or remove the AEX so I could open it 
> up and
> see if I could clamp it somehow.  Given the short length of pitot 
> hose, and
> the location of the AEX, I decided that would be a major issue 
> requiring
> removal of the canard and I/P cover.
> 
> The good news is that the plane flies great, and the rotary engine 
> is
> running extremely well.  The power is smooth, instant, and 
> plentiful.  I
> worked on making some turns, especially since I'd been flying around 
> the
> pattern on previous flights, I decided that some right turns would 
> be nice.
> It was also very smooth at 9:00 AM this morning, so I could trim the 
> plane
> for hands off flying.  That really makes a big difference.
> 
> At this point, I would like to see my oil temperature a little 
> lower, but
> all-in-all, I couldn't be happier with the plane, or the engine.  
> Both are
> perfuming well beyond my expectations.  My take off and landings 
> have also
> greatly improved as I get a better feel for the aircraft.
> 
> 
> 
> 2.2 hours TT 37.8 to go.
> 
> 
> Steve Brooks
> Cozy MKIV N75CZ
> Turbo Rotary
> 
> 
> 
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