Kenny Keller explains density altitude for helicopter pilots: pressure altitude corrected for non-standard temperature. He defines pressure altitude as what your altimeter reads at 29.92, then shows how temperature changes affect aircraft performance on exams and in the air.
Density Altitude why do we care? This recently came in from our clone that I'm going to show you here in a minute. But these coincide with a couple of chapters like preparing for the practical test and answering like you're in court. You can get this down below as a free PDF or you can actually order the paperback copy as well. Our latest Amazon number one best seller. So answering like you're going to court for the practical test. Two things examiners are going to ask you about every single checkride is density altitude and pressure altitude. And I want to give you two short definitions because you want short sweet definitions to just pop off to the examiner. But first, let's cover the question of why do we care about density altitude? And we're going to use hogs askhogs.com.
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Why do we care about density altitude?
Density altitude is crucial because it directly affects aircraft performance. It's essentially the pressure altitude adjusted for non standard temperature and humidity. When the temperature rises or the air becomes more humid, the density altitude increases, meaning the air is less dense. This can significantly impact your helicopter's performance, making it feel like it's flying at a higher altitude than it actually is. In practical terms, higher density altitude means your helicopter's engine will produce less power, the rotor blades will generate less lift, and the aircraft will require a longer distance to take off. It's like trying to breathe through a straw while running a marathon. The engine runs hotter, less efficiently and the overall performance drops. That's why, especially in the summer, you might hear density altitude warnings indicating poor performance conditions. Understanding density altitude helps pilots anticipate these changes and adjust their flight plans accordingly, ensuring safety and efficiency. Have you ever experienced a situation where density altitude affected your flight performance?
Okay, so now I'm going to have Lindsay grab the camera here. In a second we're going to show you something in the aircraft. So the examiner is going to ask you, what is density altitude? Density altitude is pressure altitude corrected for non standard temperature. Examiner is also going to ask you about pressure altitude. So I'm going to have Lindsay swing around over here and bring the camera in. Pressure altitude is what you get when you dial 29.92 into in your altimeter. Very simple answer. So if we dial that to 29.92, that's pretty darn close something like that. Then you read your pressure altitude right from the altimeter. So right now pressure altitude about 840. So density altitude pressure altitude corrected for non standard temperature pressure altitude. It's what you get when you dial.
29.92 in the Colesman window on your.
Altimeter and you read pressure altitude right off the altimeter. So a couple of great resources for you. Free free PDF this is our Amazon number one best seller. Ask Hogs.com you just saw this in action. If you're new to our videos or you're new to this, we've had 13 years of my content in here. So this is blogs, videos from our paid courses, podcasts, YouTube videos. Has over 6 million words that I've spoken have been piped into this thing so it can actually answer better than I can. It obviously speaks better than I can. So free resource askhogs.com and the beauty is 24 hours a day, seven days a week. But yes, we know that's annoying at times when you want to talk to a real person, so our customer service is not going away. That's still available at 574-767-1797. You can still talk to a live person at Hogs, but at times she has to sleep. This is available 24 7, so links down below. Come back tomorrow for something else fun and exciting. Peace out.
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