Kenny KellerCreator Helicopter Online Ground School LLC

Day #23 Indicated True Calibrated Airspeed's Helicopter Online Ground School

24 Jan 2012 · 1 min

Watch on YouTube

1:26

A short helicopter ground-school video (Day #23) by Kenny Keller that explains the differences between three airspeed measures: indicated airspeed (read from the instrument), true airspeed (speed relative to the surrounding air), and calibrated airspeed (indicated airspeed corrected for installation and instrument errors). The speaker shows a notebook page and closes with a brief call-to-action.

Questions this video answers

Indicated airspeed is what you read right off of your airspeed indicator (e.g., the instrument reading: '70 knots' or '70 miles an hour').

True airspeed is your airspeed relative to the surrounding air.

Calibrated airspeed is indicated airspeed corrected for installation and instrument errors.

Chapters

What is indicated airspeed? Indicated airspeed is what you read right off of your airspeed indicator, what you look down and read. And if it says 70 knots or 70 mile an hour, that is your indicated airspeed. That's what you're reading from your airspeed indicator. The next one I want to mention is true airspeed. True airspeed. This one I always have trouble remembering. I have to always look it up. True airspeed is your airspeed relative to the surrounding air. And then the next one I want to mention is calibrated airspeed. Calibrated airspeed is indicated airspeed, corrected for installation and instrument errors. So those are your three airspeeds. They're up here in the background. This is a page from my notebook, and I thought it'd be fun to throw up a page of that and let you see the original version, the one that we have transcribed and that we're getting prepared right now. So that's going to be some pretty cool stuff. So remember, those three are speeds, calculated, indicated and true. Know the differences of the three. And like I said very simply, they're not real, real tough. But in the heat of the moment, those. One of those things that can really trip a guy up is that simple, simple stuff. So please click the like button, leave comments with feedback, and we will see you on day number 24. Thanks.