This latest band of weather passing through the midwest and northeast has me once again thinking about breaking action reports. Now before I go showing my ignorance, I should go look in my AIM to see if this stuff is there. But I'm to lazy for that and find that posting my question and getting my answer from this forum will be much easier.
Now I know we have a few different measures of breaking action. The first being nill,poor,fair and good. Which in my mind equates to very scared,little scared,not to scared and not scared at all.
Then we have MU (I'm not sure of the spelling) reading. I usually come across this at bigger airports. They give me this number which is suppose to be some friction index. It has been my experiene that below 30 is nill(very scared),30-35 is poor,35-45 is fair and 45 and above is good.
Now don't go using my numbers because I am probably wrong on this stuff anyway. Also w/ this friction index thing, I think it differs w/ type of aircraft. Some jets rely fully on their brakes for stopping whereas most turboprops can get it stopped on the runway using very little if any brakes.
Now all this stuff is leading to a question and I actually have many question on this subject. I guess what I hope, is that we can get a discussion going here so that I can finally get this stuff straight.
Here are some of the things I want to talk about:
1. What are the different types of breaking action reports(ie poor/good, MU reading, ...ect)?
2. What are the best way of getting the most current of these reports?
3. What are some of your experiences on icy runways?
Now I know we have a few different measures of breaking action. The first being nill,poor,fair and good. Which in my mind equates to very scared,little scared,not to scared and not scared at all.
Then we have MU (I'm not sure of the spelling) reading. I usually come across this at bigger airports. They give me this number which is suppose to be some friction index. It has been my experiene that below 30 is nill(very scared),30-35 is poor,35-45 is fair and 45 and above is good.
Now don't go using my numbers because I am probably wrong on this stuff anyway. Also w/ this friction index thing, I think it differs w/ type of aircraft. Some jets rely fully on their brakes for stopping whereas most turboprops can get it stopped on the runway using very little if any brakes.
Now all this stuff is leading to a question and I actually have many question on this subject. I guess what I hope, is that we can get a discussion going here so that I can finally get this stuff straight.
Here are some of the things I want to talk about:
1. What are the different types of breaking action reports(ie poor/good, MU reading, ...ect)?
2. What are the best way of getting the most current of these reports?
3. What are some of your experiences on icy runways?