Term RMS refers to the mathematical Root Mean Square which is an average of peaks and valleys of a materials surface profile. Ra stands for roughness average. Ra is a average of only peaks; therefore, to get an Ra, multiple your 3.2 to 6.3 by 2 to get 6.4 to 12.4 Ra. AF Kenton.
Closest Airport to Siesta Key, FL. The closest airport is Sarasota Bradenton International Airport (SRQ). Distance from Sarasota Bradenton International Airport to Siesta Key is 10,4 kilometers (6,5 miles).
Siesta Key Beach is central Sarasota's gateway to the sparkling waters of the Gulf of Mexico, an island with luxurious amenities and a relaxed vibe. Find Activities & Attractions Listings Get Siesta Key Trip Ideas View Siesta Key Events Watch Siesta Key Videos. 1  Tweet.