Fri Dec 29, 2006 12:45 am
Snowmachines have a distinct advatage when it comes to frozen water. There is momentum and speed. You can float and "water skip" the open water. Planes don't have that advantage. Well, too often anyway.
That having been said, I have recently had the pleasure of learning to land on glare ice.
There are a couple of rules with ice. Clear ice will give a "true" value while white ice gives a half value. OK, what I mean is that if you have 6-8" of clear ice, it's good for that value of depth. If you have white ice, cut that value in half. It might be 6" thick but it's worth 3" in strength. That's for fresh water ice by the way. Sea ice will give a value of about 1/2 of the above. From what I understand there is no such thing as clear salt water ice. Take it with a grain of salt, I'm still learning.
There are two things that I have learned about landing on clear, wind blown, glare ice. When you land, do not dump the flaps and clean the plane up as you would on a short/soft landing. You have no (did I mention NO resistance) drag to stop you other than what you have hanging out there (flaps, elevator, etc) My first ice landing with a final "over the numbers" speed of about 50mph & took almost a 1/2 mile! I touched the brakes at about 25-30 mph and the Damn thing sped up!
The second is; Watch the wind because you will weather vane something fierce! Makes floats look like slow motion.
It is one of the neatest experiences you'll have though. I was watching the fish below the ice.
Did I mention I forgot the camera?
Snow on ice:
I have just the 8:50's and have been real cautious as to what I've been willing to land on. The Pros say you can go up to your axle before you have to worry but I balance that against the type of snow I land on. Powder you can blow away, no problem. Crust of ice, a little rain crust, wet, heavy snow, I won't go. Started putting the skis on tonight. Wouldn't you know it, forcast says Sunday wth a high of 40 and then cold again. Looks like overflow........