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R. Hankins
Joined: 18 Jan 2006
Posts: 185
Location: Grants Pass, Oregon
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 Posted: Thu Mar 22, 2007 6:49 pm Post subject: Kolbra vs MarkIII STOL performance |
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John H & John W.
The Trask runway pictures and stories bring up a good question. How do the Kolbra and MarkIII compare on STOL performance. It sounds like the Hauck MarkIII handled this field somewhat easier. If this is the case, is it due to horsepower differences, setup differences between the two craft, flaps or non-flaps? Is the difference between these two planes designed in, or a result of the modifications of the builders?
I have been contemplating which two seat Kolb I would like to build when I graduate from the Firestar. I love the looks, centerline seating and cruise of the Kolbra, but don't want to give up short field ability.
Looking forward to the Alvord,
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Roger in Oregon
1992 KXP 503 - N1782C |
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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| Posted: Thu Mar 22, 2007 7:27 pm Post subject: Kolbra vs MarkIII STOL performance |
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How do the Kolbra and MarkIII compare on STOL performance.
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| Looking forward to the Alvord,
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| Roger in Oregon
Roger:
I don't think you can beat either the Kolbra or the mkIII. I am not
talking about the mkIII xtra because I don't have enough experience
flying it to make any pertinent, accurate comments.
With the same power plants, both aircraft are great stol birds. My
mkIII has a landing advantage with 40 degrees of flaps. I am
patiently waiting to fly Paul Petty's new Kolbra which will be
equipped with full flaps. I do not know how many degrees he will be
able to droop them.
Both tandem and side by side aircraft have their on advantages and
disadvantages. I like the increased cruise the Kolbra has over the
mkIII, but I also like the way my mkIII is configured better with more
cargo room, and a left seat to use for a flight desk.
I always said if I ever built another airplane, it would be a Kolbra.
However, I don't see a new airplane in my future. I have to wear out
the one I have first, and I am about to mount a new engine and finish
up several updates that will keep the old bird flying for many more
years.
Take care,
john h
mkIII
PS: I am ready for the Alvord myself.
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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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John Williamson
Joined: 10 Jan 2006
Posts: 146
Location: Arlington, TX
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| Posted: Thu Mar 22, 2007 8:00 pm Post subject: Re: Kolbra vs MarkIII STOL performance |
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Hi Roger and all,
When I went into Scott's airstrip, I had the Jabiru 2200 engine on the Kolbra with a 58", 2 blade Warp Drive prop. That combination made for a very shallow approach path when compared to the 912 ULS with a 68", 3 blade Warp Drive prop.
With my upgraded brakes, 912 ULS and 3 blade prop, Scott's strip would be no problem.
On our concrete runway, with just me and fuel on the Kolbra (964 lbs) I can get it in the air (no wind) in 200 feet. From touchdown to full stop takes me about 400 feet (the tail is up most of the process because I'm heavy on the brakes).
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John Williamson
Arlington, TX
Kolbra, 912ULS, 1640 hours
http://home.tx.rr.com/kolbrapilot |
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Paul Petty
Joined: 11 Jan 2006
Posts: 226
Location: Mississippi
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| Posted: Fri Mar 23, 2007 6:05 am Post subject: Re: Kolbra vs MarkIII STOL performance |
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Roger,
You should have seen John W land at our strip! He stopped long before most everyone even starts to think about touching down. When he got out Charley said "heck man the runway starts over there!"
Take Care
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Paul Petty
Kolbra #12
Ms Dixie
912 UL 70" warp |
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