There is no kind of aircraft called simply an "RF" - must be numbers or more letters attached.
RF - Republique Francaise (= French Republic).
140 db - According to http://www.geocities.com/rf-man/db.html
This is a 10 Franc ("10F") coin from France ("RF" stands for "Republique Francaise", which is French for the French Republic)
a vi plane A silly plane
Boeing 757
An RF scale is a Representative Fraction (RF) Scale
No.
What is rf transmitter
wt is RF SURVEY?
Rf is about .45
Yes because it's a twisted incline plane.
Yes because it's a twisted incline plane.