Tag Archives: airspeed indicator

Aircraft Systems: Oil Systems

We’re staying warm this week, but we’ll be talking about ways to keep your engine cool. Today’s post is on your aircraft’s engine oil system. Look for follow up Ground School posts in the coming weeks about your engine’s cooling and exhaust systems. And be sure to check out what we’ve already covered in regards […]

CFI Brief: Knowledge Test Questions, Stalls & Spins

As the angle of attack is increased (to increase lift), air will no longer flow smoothly over the upper wing surface but instead will become turbulent or “burble” near the trailing edge. A further increase in the angle of attack will cause the turbulent area to expand forward. At an angle of attack of approximately […]

CFI Brief: Pitot-Static Systems and Flight Instruments, Part III

Today we will finally wrap up our three part post on the pitot-static system and related instruments with a quick discussion on errors. If an error is noted on one of the three pitot-static instruments it is almost always caused by either a blockage in the pitot-tube or one of the static ports. As we’ve […]

CFI Brief: Pitot-Static Systems and Flight Instruments, Part II

I am sure you have been waiting all week for Part II of the CFI Brief on the Pitot-Static system. So here it is: today we will get into some of the principals of operation of each of the three pitot-static instruments found in the cockpit: altimeter, vertical speed indicator, and airspeed indicator. The altimeter […]

Flight Instruments: Airspeeds and the Airspeed Indicator (ASI)

Today, we’ll go over the airspeed indicator (ASI). This explanation comes from the FAA textbook Pilot’s Handbook of Aeronautical Knowledge. The ASI is a sensitive, differential pressure gauge which measures and promptly indicates the difference between pitot (impact/dynamic pressure) and static pressure. These two pressures are equal when the aircraft is parked on the ground […]

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