Backcountry Pilot • Sky flying!!!!!

Sky flying!!!!!

Two of the best inventions ever, skis and airplanes, together.
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Sky flying!!!!!

This AM it was 19 degrees and dead calm with blue skies, and I had a new set of skis to try out for the first time. I took off my lightly snow covered mountain strip and headed towards a paved strip about 20 miles away. I noticed I had to use a bit more nose down trim then normal, which surprised me as I was adding weight ahead of the CG.... then the light went on. I still had the skis retracted, thus they were flying at max AOA, so for the first time I extended the skis and everything worked as it should, plus the speed increased!

On the way to the paved strip I had time to play with the cruise, it appears there is about a 5 mph hit in cruise: what RPM range would usually have me cruising at 95 mph ind. now I was showing 87 to 90. 5 to 7 mph, I can live with that....I briefly ran it up to a bit over 100 just to see how everything behaved, no problems with anything flapping in the breeze and the skis stayed at their ideal in flight AOA.

Landing on the tarmac was uneventful, with the skis well clear. At the lowest point (the ski tail) it's over an inch, and quickly gets higher, I'm really happy with that, ops at paved strips will be as usual with no compromises.
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Then to find some snow: I flew to a residential airpark with a grass strip, they only had a short patch of snow left, but being level ground I figured this was a good first place to try. This landing was also uneventful, and when the snow ran out and I skied onto the grass the tail showed no inclination to come up, it just stopped faster. Flipping the switch to raise the skis I kicked it around in the usual tail dragger fashion and took off to find some real snow.

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Back in my "neighborhood" I headed toward the highest clear ground I could find, one of the farm fields I play in during the fall, after the crops are down. This was sloped about 15 degrees, and the usual uphill landing techniques were used, the first few times I landed short and then kept the taxi speed up until to the top and then with the tail raised made the 180 to blast off down hill. Acceleration was very brisk, similar to wheels. I made another 15 or 20 hillside landings, and everything works PERFECT. Back at my place a mile away, I landed with the wheels as I had more dirt then snow. I will need to add to my already extensive pre landing check list ( 1. reduce throttle 2. pull flaps: no carb heat or mixture needed on the Rotax 912 :D ) 3. raise and/or lower skis! In the short time remaining of good snow I will be making the most of it! I resolved the safety cable and electrical supply line securing by very loosely tie wrapping around the bungee, loose enough so it can do its bungee thing, and then tightly tie wrapping the cables to the first tie wrap. Simple and it works great.
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courierguy offline
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Re: Sky flying!!!!!

Awesome!!! Looks like you had too much fun.
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WWhunter offline
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Re: Sky flying!!!!!

cool. You need to talk Greg into a set of those??
patrol guy offline
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...remember, life is uncertain, eat desert first!
... and, those that pound their guns into plows, will plow for those who don't.

Re: Sky flying!!!!!

You are having way too much fun :) =P~
7853H offline
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Old and still keepin it up --

Re: Sky flying!!!!!

With the fun you are having this might be the first time you regret seeing the end of winter and it could be the first time ever, I will look forward to see it coming again. That is provided I get the solid to hollow axle conversion thing solved so I can get a pair on my plane.
Send some pics to Datum and they will probably make you a movie star on their site too!
dirtstrip offline
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Lynn Sanderson (Dirtstrip) passed away from natural causes in May 2013. He was a great contributor and will be missed dearly.

Re: Sky flying!!!!!

Greg is out west so we missed him for videos, but four of us just about wore out the snow today. Two cubs on skis, a super cub and scout both on 31's. Snow was just enough for skis, and just about max for comfort with the wheels.

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patrol guy offline
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...remember, life is uncertain, eat desert first!
... and, those that pound their guns into plows, will plow for those who don't.

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