Runway, How Long is long enough?

[cory mcc]

I am considering buying a kit fox and would like to get some real world info. Can someone tell me what their experience is on how long of a runway you really need. I have a piece of property that could accommodate a 1000ft strip easily and with more effort (more fill and money) 1250ft. On one end there are power lines about 30 ft high, and on the other end it is clear scrub land with no obstructions and an easy approach. The elevation of my property is around 900ft above sea level. The strip would run basically East-West with the scrub land on the east end, the prevailing winds are from the North-West. I will probalby consider getting amfib floats in the future because there are lake's everywere in my part of the country.

Thanks for any info you might have.

[Slyfox]

It all depends on you. How does the wind run with relation to the power lines, does the wind favor using entry over the power lines over the other direction. You can drag it over the field and than settle on the runway and make the 1000' work just fine. Now if you need to fly in from the power lines, that can be a problem. I would spend the money and have the power lines buried for the approach on that end.

[cory mcc]

The power lines run due north and the prevailing wind's are form the north west. The wind's in my opinion favors entry over the open scrub land to the east. The power line's are not the only issue on the west end of the runway, The lines are on the property line and my neighbor has a forest on that part of his land.

[SkyPirate]

being that the plane will be new to you,..I'd find a local airport close that you can use until your proficient,..and practice ,practice ,practice,..once you've got it down with just you in the plane ,..now find a co pilot and practice more.
It will depend on the individual as to how quick he or she get's the STOL operation down.
not saying you couldn't do it first time out ,..but you got an investment there ,..no need in putting yourself and the plane in a situation where the end result is other then favorable,..1000 foot will be plenty of room with experience,..and from what you wrote ,..you are basically no obstruction on the approach end,..that's 1/2 your battle won already.

just a thought ,.on the west end of your proposed strip ,..is there and area you could clear to turn north in a worse case scenario?
landing into a box is OK ,..but I like an out ,..for the just incase situations .

Chase

[Ron S]

My strip is about 1200 feet with a low powerline on one end and tall trees on the other. When I was new to the Kitfox I used to kill the engine on final for short landings (being a glider pilot helps). Now use side slips unless there is a strong headwind.
Ron

[Slyfox]

If you don't like the idea of killing the engine. You can do what I do. I have the rotax and I lowered the idle to below minimum. On the ground(which I don't do) it will idle around 500rpm. But in the air, you can pull the idle all the way back and really put in some air brake, If you have the IVO inflight this works really well. I took the 1800rpm idle and backed off each screw 1/2 turn and it made it perfect. Of course you really need to be aware of things when landing, after touch down you need to make sure your idle is 1800. I love it. Another benifit is shut down, you pull the throttle all the way back and kill the mags. One more benifit, if you happen to get a kick back on start up, pull the throttle all the way back, hit the starter and slowely put in throttle, starts right up with no kick.

this is one reason I don't have an off airport landing strip. There are many others. Like who is going to maintain the strip. What a pain on that one. What are you going to do when it snows, look outside and wish you could fly. what are you going to do when other pilots start using your field for their fun. What if someone else lands and crashes, or takes off and hits the power pole. Lots of what ifs. I like mine at the local airport with no responsibility. Best of all they (the airport) maintain the runway.

[Av8r3400]

I have a strip on my property that is 1000' long oriented at about 25/07.

With (mostly) clear approaches it is a little short for my current skill level (~50 hours in my KF). To do it I will have to make a near perfect approach on the numbers every time. I'm getting pretty consistent on the grass strip at the airport getting down and stopped in less than 600' (power off), but that's not good enough for my comfort level, yet.

You can come in very short with these planes by hanging the plane on the prop way behind the curve and get down and stopped in a couple of hundred feet, but that is not my preference to do this unless totally necessary.

What model plane is yours? The I-III will come in slower due to the undercambered wing, but the IV-SS is a little faster on approach.

[SkyPirate]

well good on you mn ben ..just shows all those hours you got flying your kitfox paid off ,..we are talking a potential zero time kitfox pilot here

[avidflyer]

If you have clear aproaches, 1000' should be plenty, but he said he has powerlines and trees on the one end. How much field gets used up clearing the trees and then loosing the altitude that involved? Maybe now he only has 500' left. Maybe he's a bit fast and so he floats a bit further....... As far as taking off and clearing the trees, if you normally just make it by a little bit, one day your won't quite make it and then the fun is over for that day. Take care, Jim Chuk

[Av8r3400]

If your model IV is made light with a 582 say 500#, maybe you will be off in 250'. But most are not light, my yellow plane is a fat 650# empty, without my fat butt in it.

On the grass strip at my airport, I can break ground at ~400' and clear the fictional 50' obstacle in maybe 600-650'. That would make clearing a power line from a 1000' strip a mighty close affair. Possible, but not comfortable.

Approaching to land is even more touchy. Every 20' of altitude over the fence will easily cause the use of 100' of runway. Over a power line, that will use at least 200' of runway, now you are down to 800', knock off 200' for the trees at the other end and you have 600' of "real" runway. At my best I can do it in ~400' on the grass at the airport. Now factor in a little fast from diving down past the lines and you are in the trees.

Again, doable, but way too close for comfort for most people.