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Does it say they are dynamically balances?

one ounce is a lot of weight.

I suggest you Call GSC

"Varnish" is good for fine balance.

Jan
www.jcpropellerdesign.com

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[quote] HI Guys,

I saw not so long ago in a paper information on a aerodynamic "Dynamometer" with
a bar that had several holes, where a (two) plate(s) was bolted, and could be
b ...

Rotax is simple, it say so, and what way it is equipped to give the stated power.

Other can be of a Cry end error method, I had contact with a guy on "Continental motor" he didn't gi ...

Keep in Mind, that,

Power is not always what it say on the box the engine was delivered in.

Many engines is tested without air filter, alternator, exhaust system... they can be 15% down ...

Mark and all,

After I got the GA-35 and 37 A215 typed in and checked in 3 airfoil program, I got to this conclusion:

Can not trust any program to 100 %, we can see differences though, and they ...

Hi Mark,

I see you know a lot on this and about the KIS, I am new to this forum, so I don't know your background so please fill me in a little.
I hope I didn't step on anyones toes here.
When I ...

I made a "final" test with original NACA 63A215, Half-Cuff on the same airfoil and the Riblett GA 35A215, all these have the same basic symmetric airfoil, except the Half-Cuff that is modifi ...

Okay, always goes faster second time.

Riblett talks about his mean line have 0,3% nose drop on the CL 0,2 mean line, so I used that, and it is half of the first one.

Very interesting result.

...

Thank's Mark and Scott good points.

Yes it give more drag with the cuff at speeds higher then the CL 0,3 as I wrote in previous post. and I realize it is not for Scott's light and fast plane.
To ...

Hi Al'

this is analyze of the KIS-1 airfoil, not the 4-Cruiser that have a different
airfoil the N-65-415

I tested the Naca 63A215-Coff'd airfoil in 3 airfoil program, DesignFoil,
JavaFoil ...

I will test it in virtual wind tunnel, and we see if it as good as Mr. Riblett say, what we can see is that the nose is corrected and this lead to increased camber, as seen the original nose is above ...

you have my e-mail there os go to my home page, and send your e-mail and I mail them to you,

Jan

I did, you can not see them? 3 jpeg attached in the forum.

Jan

I got the late Harry Riblett GA AIRFOILS Book the other day.

He has some really good information and fixes in his book, and the story about how he comes
to develop his own airfoils the GA- series. ...

Yes a range of aloud ables.
as I understand it, if the in case of elevator the air load will give a stick load of 200 use 167, if it is 120, use 120, if it is 90 use 100.?

Jan

I tried to understand the FAR 23.
there is A a and b, max and min.
as I understand it use max if the aerodynamic load is giving larger loads.
then you can not pull any harder then 167 in elevator. ...

It is here, on the forum. do you read this in e-mail or on the forum
http://forums.matronics.com/viewtopic.php?t=95809

it is on the right hand side, say down load.

Jan

I made this spread on push rod strenght couple of years ago, had a engineer looking it over, but I used 167 lb at stick instead of 100, over kill i say. just put your data in, force, stick length, ge ...

I put all data in from the KIS, with airfoil data, and the KIS handbook from Norway using the original size of H-stab and elevator, and Hans Christan's forward and most after CG load example into Neil ...

If the VG's help, it suggest something is wrong from start, it is also reported a difference when using flaps with and without VG's.
So I say the airfoil is wrong or no good, if VG's fix that it is ...