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On Dec 3, 7:24*am, Mark IV wrote:
“Warm up the engine at 1,000 to 1,200 rpm unless it’s necessary to reduce rpm to keep from exceeding the oil pressure redline. As the oil warms up, the rpm can be increased. Allow plenty of time for the engine to warm up,” Steven W. Ells advised " “The system, although simple, does have one major downside. In most light aircraft installations, because the residual heat from the exhaust is what powers the cabin heater, a leak in the exhaust system could mean exhaust coming into the cockpit. And that means carbon monoxide could be entering as well. Carbon monoxide is an odorless, colorless gas that can incapacitate pilots and passengers,” Alton K. Marsh said --- Final exam question of the day: Question: What is the difference between best rate of climb speed and best angle of climb speed? Answer: The best rate of climb speed, also known as VY, provides the greatest gain in altitude in the least amount of time. The best angle of climb speed (also known as VX) provides the greatest gain in altitude over a given horizontal distance. The different airspeeds that either limit or result in specific aircraft performance are known as “V speeds”—V for velocity. The different V-speed abbreviations are listed in the federal aviation regulations under Part 1: Definitions and Abbreviations. --- Mark IV Koreans have recently brought out their own vegetarian version of an instant noodle snack. It’s called Not Poodle. So you're on the runway accelerating: With no significant crosswind, if it's a short runway this pilot tends to keep the airplane on the surface to Vx, then applies back pressure to keep it there until clear of the threat. If there's a serious crosswind I keep the wheels on the ground until I'm sure there's plenty of airspeed, then take it off firmly. By the way, on a wide runway with a lot of crosswind component start your run not on the centerline but more to the downwind edge of the runway, when you're within 10 kts or so of takeoff speed you can take some of the crosswind component away by turning toward the upwind edge of the runway. 100 feet of useful runway width (say on one whose paved width is 150 feet) can really change the relative angle of the wind. On a longer runway back pressure comes on when airspeed reaches bottom of the yellow, some of it is released when a/s is at Vx. At 50 feet or so more back pressure comes off, I trim for Vy, then at 500 feet I trim for cruise climb and when the airspeed is where I want it I bring the engine back to 25 square. How do the rest of you guys in complex singles do it? |
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On Dec 3, 4:57*pm, a wrote:
[...] By the way, on a wide runway with a lot of crosswind component start your run not on the centerline but more to the downwind edge of the runway, when you're within 10 kts or so of takeoff speed you can take some of the crosswind component away by turning toward the upwind edge of the runway. 100 feet of useful runway width (say on one whose paved width is 150 feet) can really change the relative angle of the wind. [...] Now that's a good common-sense tip that I've not heard before. --- Mark IV |
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On Dec 4, 8:54*am, "Mark." wrote:
On Dec 3, 4:57*pm, a wrote: [...] By the way, on a wide runway with a lot of crosswind component start your run not on the centerline but more to the downwind edge of the runway, when you're within 10 kts or so of takeoff speed you can take some of the crosswind component away by turning toward the upwind edge of the runway. 100 feet of useful runway width (say on one whose paved width is 150 feet) can really change the relative angle of the wind. [...] Now that's a good common-sense tip that I've not heard before. --- Mark IV Something to think about: "the numbers" and "the centerline" are useful references for CFI's to use when training pilots. As one becomes more experienced the desired touchdown point on a runway is in relation to the turn - off you're wanting to use: most of us do that already. The true sign of a low time or thoughtless or ignorant pilot is one who touches down within 100 feet of the numbers on a 7000 foot long runway when the taxiway closest to the FBO desired is at the other end. Less appreciated is using the physical width of the runway to one's advantage. If there's a significant crosswind component my over-the- ground track is well to the downwind side of a wide runway's centerline and close to touchdown speed I may turn a little more into the wind toward the centerline. It's less wear and tear on tires and more gentle on the airplane. On the other hand, unless you really know your airplane, don't do it. My M20 and I are good friends, it permits me to take liberties like these because I know when it's ready to fly and ready to land. I'm also the guy who because the Mooney is low wing flies 50 or 100 feet below my assigned altitude as a minor mid-air avoidance probability reducing technique, ditto being at pattern altitude a mile or two from the pattern and making minor clearing turns when on the entry leg at an uncontrolled airport as well: it makes it easier to see other airplanes higher than me and unlikely to have any lower. All of these things and countless others probably add up to a marginally safer flight: at least it's evidence there's some thinking going on. I don't want to fly 'by rote'. |
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