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Richard,

I turned my mounts with the high side up. I found that it is critical to use large snubbing washers on the bottom side of the mounts to prevent over stressing the rubber part of the mount ...

Richard,

Iâ€™m presently using a 4/1 ration E box on my Mark 3 with a 70â€ three blade IVO medium prop.
My engine is a 670 rotax engine which I derated by lowering the compression ratio.
The ad ...

Please explain.

Is this intended to make some kind of philosophical point about the KOLB FLY-IN host, or about the person who posted the invitation to the KOLB FLY-IN ?

I need to replace my motor mounts.
Does anyone have a part number for the square Lord Mounts use on the Mark 3 airframe?

Concern about CG limits on any Kolb aircraft is for all practical purposes unnecessary unless there is a significant deviation from, or modification of, the airframe from the original Kolb design plan ...

Bill,I have a 670 Rotax Rick engine with a 4/1 ratio C box on a Mark 3 Classic. It has a 3 blade 64â€ Ivo MEDIUM prop. I have derated my 670 by lowering the compression ratio to produce no more than ...

Thanks, Arty

Gravity and wind pressure holds them firmly in place. No latch ever needed. I made a latch on the first one and soon found it to be totally unnecessary. Often thought about making an easy change summe ...

Here are some picts of my "old man easy access" wind screens that I have made on my various Kolb planes over the years.
[img]cid:F1658E08-BE1B-4A77-80CF-706EF68217CB@PK5001Z[/img][img]cid:1 ...

On May 31, 2016, at 2:01 AM, Bill Berle <victorbravo@sbcglobal.net (
Bill.
My concern is satisfied. The photo of completed elevator looks very good.

Thanks,

Gene

Bill, Your photos show single tubes from leading edge to trailing edge. Is this according to your Kolb plans or your own modification? Every Kolb flight surface Iâ€™ve ever built required a second tub ...

On Mar 22, 2016, at 4:39 PM, Bill Berle <victorbravo@sbcglobal.net (

Bill,

The surest way to compromise the structural integrity of a Kolb Aircraft is to attempt to fix a structual problem/we ...

On Mar 21, 2016, at 1:55 PM, Bill Berle <victorbravo@sbcglobal.net (So I called a friend of mine who is a retired aerospace structural engineer, with 50+ years of experience.

LOL

The cogniti ...

On Nov 5, 2015, at 10:17 AM, Richard Pike <thegreybaron@charter.net (
Richard, just a suggestion.

I noticed one thing that I would not be comfortable with in the picture of your battery mount. ...

Sorry but I don’t believe that will work. The provision for the diagonal brace is located differently on the Ultrastar.

On Dec 18, 2014, at 12:26 PM, Herb <herbgh@nctc.com (

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George,

What kind of video stabilization program did you use on that clip?
It did an excellent job of keeping the image of the plane stable as the camera obviously moved around.

Gene

Yes. I have a Mark II with a 582 on it since the early 1990's and have had no problems with it.

The extra power of a 582 is no problem on a MarkII as long as you respect the gross weight limitati ...

If mounted correctly the 582 will not add any significant extra weight and should provide at least 10 or more HP than the 503.

I believe the Firestar pictured has some structural enhancement modifi ...