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Transitioning to the Mk III

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rickofudall

Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA

Posted: Tue Jul 09, 2013 6:40 am Post subject: Transitioning to the Mk III

Dennis Kirby, all, For pilots transitioning from GA to a Kolb Mk III I made this video to help several years ago. Look at how the position of the horizon on the windscreen changes with flap setting.Hope this helps.

 http://www.youtube.com/watch?v=mQ-YaW9WgEU

Rick Girard



-- 

Zulu Delta

Mk IIIC

 Thanks, Homer GBYM

It isn't necessary to have relatives in Kansas City in order to be unhappy.

  - Groucho Marx

 



 



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Ralph B

Joined: 14 Apr 2007
Posts: 367
Location: Mound Minnesota

Posted: Tue Jul 09, 2013 7:20 am Post subject: Re: Transitioning to the Mk III

Rick, you know how to land a Mark III. Good job!



Ralph B

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Ralph B

Kolb Kolbra 912uls
N20386
550 hours

Larlaeb

Joined: 02 Apr 2013
Posts: 75
Location: League City, Texas United States

Posted: Tue Jul 09, 2013 7:33 am Post subject: Re: Transitioning to the Mk III

I agree.  I found these videos very helpful during my transition, I probably watched them 20 or 30 times.  I would recommend in my limited experience that you move to flaps (especially full flaps) only after you have the no-flap landing down pretty well.   I did practice approaches and slow flight with flaps at altitude which helped.  Also it seems to me that the video approaches don't look as steep as the ones in real life.    



In addition I've noticed that with additional weight forward (passenger) that  elevator authority is different and changes the flair timing and stick movement a bit.



Thanks,

Allan

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Ralph B

Joined: 14 Apr 2007
Posts: 367
Location: Mound Minnesota

Posted: Tue Jul 09, 2013 12:06 pm Post subject: Re: Transitioning to the Mk III

"Larlaeb"

 	  Quote: 	
		  In addition I've noticed that with additional weight forward (passenger) that  elevator authority is different and changes the flair timing and stick movement a bit.



Thanks,

Allan 	




You sure got that right. The Kolbra is a different airplane with a passenger. The sink rate increases dramatically and the stall is higher. The majority of my flying these days is carrying my wife who runs the camera from the back seat (she also is a "back-seat driver"). I flew it solo yesterday and it climbed like a Firestar. I did six takeoffs and landings and forgot how to land solo. Not that the landings were poor, but I had to compensate for the lack of weight.



Ralph B

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Ralph B

Kolb Kolbra 912uls
N20386
550 hours

pj.ladd(at)btinternet.com
Guest

Posted: Wed Jul 10, 2013 2:06 am Post subject: Transitioning to the Mk III

I found these videos very helpful during my transition, I probably watched 

them 20 or 30 times.



Hi

You are making a mountain out of a molehill. I changed from a Challenger to 

a Mk111 Xtra.in a couple of days.

The obvious change is tricycle to tail dragger. Tricycle is so much better 

in every way it amazes me that anyone bothers with taildraggers. Steering is 

accurate and precise without having to bother with differential brakes. Side 

winds problems are much reduced with easily controllable weathercocking..

That said there is something romantic and `veteran` about a tail dragger 

that I .like or I would not have bought the Xtra.

Hold the stick right back when taxying and point the stick into wind.

Taxy around your field until you can point the plane in the right direction. 

Do a couple of runs along the runway until you can lift the tail (gently) 

and balance   on the mains.Find the trim position. When you can keep 

straight and on two wheels just set up the longest run you can, select one 

notch of flap, open the throttle SLOWLY or she will swing, until you are 

flat out. and go for it.

It will be obvious when she wants to fly, don`t mess about watching the ASI, 

just let her lift off. Climb at full throttle at about 50ish. Its not that 

critical, just don`t get slow.Take the flap off at around 5/600ft

Get 1000ft on, throttle back, play with the trim and get used to the flying 

position. Do some gradually steeper turns in both directions and just play 

with it for half an hour. Check the indicated stall speed with one notch of 

flap.which is what you will use for landing.

Landing.

Set up your approach giving yourself plenty of room. No steep turns in the 

circuit. Circuit height is probably around 700ft agl.

Reduce power and trim for about 50. on the downwind The change in attitude 

is not great but.the nose will tend to lift as the power comes off. I never 

did a flapless landing, why would you?. You want increased lift at decreased 

speed when landing. Thats what flaps are for. One notch flaps,watch for 

attitude change, trim out for 50/55. Turn final . I alaways cut the throttle 

when the field is made. Let the plane sink until the blur of the grass 

changes and you can see individual blades of grass. Flare and try to keep 

the plane in the air, just off the ground as long as possible.

She will eventually stall and you should be a few inches off the ground at 

that point. You have a perfect three pointer.

KEEP THE STICK BACK and apply brakes if you must, but GENTLY.

Raise the flap and taxy in.



You will not need more than one notch of flap except in an emergency .She 

REALLY comes down steeply if you do.



One more thing. If you sideslip and there is really not much point as the 

flaps will drop you quite quickly enough watch for a slight lift of the 

nose. The sideways motion of the air across the curved nose produces a bit 

of lift. No problem, just be aware.



Good luck



Pat

.

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Larlaeb

Joined: 02 Apr 2013
Posts: 75
Location: League City, Texas United States

Posted: Wed Jul 10, 2013 6:20 am Post subject: Re: Transitioning to the Mk III

Well, better a mountain than a hole in the ground I always say .  Probably some of us just need more help than others and in my case the site pictures in the video really helped.  I would argue that a Challenger fits into the lighter type of aircraft category which would give you an understanding of the deceleration issues which plague some GA pilots making the transition.   As far as tricycles being better, I will agree that they are generally easier but not  better for all applications.  Just my two cents.



Allan

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