[NSRCA-discussion] Another trimming question

[Anthony Romano]

Interesting thinking a little more positive would allow a further forward CG 
which may  give you a little more stability. Document it so you can move 
back and give it a try. As I have heard said "trimming is a verb."

Anthony

>From: "Peter Pennisi" <pentagon.systems at bigpond.com>
>Reply-To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>To: "'NSRCA Mailing List'" <nsrca-discussion at lists.nsrca.org>
>Subject: [NSRCA-discussion] Another trimming question
>Date: Wed, 25 Oct 2006 08:37:54 +1000
>
>Hi Guys,
>
>
>
>I am looking for opinions.
>
>
>
>I am currently flying the COMP-ARF IMPACT with DZ160 which I am very 
>pleased
>with.
>
>
>
>Model is flying with no trim and negligible mix. There is no rudder to
>elevator mix for knife edge flight and 5% mix at large rudder throws for
>rollers etc.
>
>
>
>Model climbs as straight as an arrow so I am happy with my thrust settings
>and the model pulls ever so slightly to canopy on long down lines which is
>mixed with throttle.
>
>
>
>The incidence settings are 0 degrees on tail-plane and approximately 1/6th
>of a degree positive on the wing. The CG is about right and I don't want to
>go any further forward as it creates too much work when rolling in 45 
>degree
>up lines.
>
>
>
>I know most of you will say that the model is fairly well trimmed. The 
>model
>is pure pleasure to fly in the calm and really locks on well however when
>the wind comes up it is a different animal to fly. The model gets knocked
>around and I find it very difficult to lock in a line. I am only talking
>about moderate wind here. My other model (Alliance) seems to handle the
>windy conditions better.  I don't want to go any heavier in the nose
>otherwise rolls become too much work. I would actually like to bring my CG
>further back but it will make the model even more difficult to fly in the
>wind. CG is currently 5 mm behind rear of wing tube. Model weight is 4.72 
>KG
>
>
>
>Question: Will changing wing incidence have any effect on model behavior in
>windy weather without affecting the rest of my settings / trimming. I only
>have 1/6th of degree positive and I know a lot of people run anywhere
>between 0.25 to 0.5 degree on their models.
>
>
>
>Thanks
>
>
>
>Peter
>
>
>
>
>


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