REFLECTOR: Flight testing

[Scott Derrick]

David a real need for V's is an idle rpm much nearer 600 or even lower. 
  The difference in landing distance between an idle of 800 and 600 is 
astounding!

I actually set mine for 600-550, which is spec.  I have to be careful 
after landing when the roll out slows to below 50 knots to give the 
throttle a quick blip as sometimes the engine may stop, but I put up 
with that as it really shortens the landing distance.

Scott

-------- Original Message --------
Subject: Re: REFLECTOR: Flight testing
From: David Ullman <ullman at robustdecisions.com>
To: reflector at tvbf.org
Date: 05/10/2012 08:10 AM

> Just an update.  My woes of last week seem to be past.  I found a major
> vacuum leak where one of the intake manifold pipes joins the manifold.
> Fixing that made the engine run much better and I have tracked the starting
> issue to the starter solenoid (maybe).  The starting problem has not
> reoccurred, but I have a new solenoid for when it does.
>
> In tinkering with the throttle body (fuel injection) I readjusted the
> throttle to bring the idle rpm down to about 800rpm.  It was over 1000 which
> was clearly too high, but with the engine running rough due to the vacuum
> leak, that was needed to keep it running.  I still don't have all the
> adjustments quite right, but getting closer.
>
> Now with the rpm lower and much practice, my landing distances are getting
> good.  Yesterday I repeatedly turned off the 5000ft runway at the 2100ft
> mark and the then landed on a 3500ft runway and with heavy braking, turned
> off at the mid point.  I am now sufficiently confident in the plane and my
> ability, to venture to other near-by airports with 3000ft runways and $100
> hamburgers.
>
> This proficiency is JIT for the good weather in the NW.
>
> Let me know if any of you are headed in the Oregon direction this summer. My
> EAA section (292) is having a fly-in the week end of Aug 18-19 in
> conjunction with Vans Homecoming.  I am trying to get other canards to show
> up to counteract the spam-can-wrong-way RVs.
>
> Please also note that I will be in Great Lakes region in late June running
> The Great Race (an antique car road rally).  Sans my Velo.  See
> www.greatrace.com for cities, dates and other details.
>
>
> David Ullman
> N-444DX Velocity
> EAA 292 President
> david at davidullman.com
> 541-754-3609
> 1655 NW Hillcrest Dr
> Corvallis OR 97330
>
>
>
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