REFLECTOR: Flight testing

[Douglas Holub]

Mine too. It will idle at 500 rpms fine when it's just sitting on the ramp.

Maybe the throttle is set at 400 rpms while landing, but the tack shows 500 
rpms because wind is pushing the propeller? I think that's probably it.

Doug
----- Original Message ----- 
From: "Scott Derrick" <scott at tnstaafl.net>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Thursday, May 10, 2012 11:19 AM
Subject: Re: REFLECTOR: Flight testing


> I've always wondered why it does that?  Some kind of forced lean condition 
> because of the low throttle position and the forced ram induction?  The 
> engine idles fine other wise.
>
> Scott
>
> -------- Original Message --------
> Subject: Re: REFLECTOR: Flight testing
> From: Douglas Holub <douglas.holub at gmail.com>
> To: Velocity Aircraft Owners and Builders list <reflector at tvbf.org>
> Date: 05/10/2012 09:07 AM
>
>> Same with me. When it slows down below 50 kts I need to give it a little
>> gas or the engine quits.
>>
>> ----- Original Message ----- From: "Scott Derrick" <scott at tnstaafl.net>
>> To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
>> Sent: Thursday, May 10, 2012 10:41 AM
>> Subject: Re: REFLECTOR: Flight testing
>>
>>
>>> 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
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> To change your email address, visit
>>>> http://www.tvbf.org/mailman/listinfo/reflector
>>>>
>>>> Visit the gallery! www.tvbf.org/gallery
>>>> user:pw = tvbf:jamaicangoose
>>>> Check new archives: www.tvbf.org/pipermail
>>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>>>
>>>
>>> --
>>> Outside of a dog, a book is man's best friend. Inside of a dog it's
>>> too dark to read.
>>> Groucho Marx
>>> _______________________________________________
>>> To change your email address, visit
>>> http://www.tvbf.org/mailman/listinfo/reflector
>>>
>>> Visit the gallery! www.tvbf.org/gallery
>>> user:pw = tvbf:jamaicangoose
>>> Check new archives: www.tvbf.org/pipermail
>>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>
>> _______________________________________________
>> To change your email address, visit
>> http://www.tvbf.org/mailman/listinfo/reflector
>>
>> Visit the gallery! www.tvbf.org/gallery
>> user:pw = tvbf:jamaicangoose
>> Check new archives: www.tvbf.org/pipermail
>> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>>
>
> -- 
> No one can make you feel inferior without your consent.
> Eleanor Roosevelt
> _______________________________________________
> To change your email address, visit 
> http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
>