tuwood
Pre-takeoff checklist
I'd just rather spare you the unpleasantness of learning some of this stuff the hard way.
The number one reason I follow forums like PoA.
I'd just rather spare you the unpleasantness of learning some of this stuff the hard way.
When you fly with the airplane "nose in" to the wind, flying sideways, you are crabbing. when you fly with the airplane aligned with the centerline, wing low, that is a forward slip. And you most certainly will need to put in "some" power to maintain centerline in a crab, it is kinda like being trimmed, if you are crabbing down the slope maintaining centerline with 1800 RPM, if you cut power and do nothing else, in our scenario you will absolutely move left of centerline. To maintain at the lower power setting you will need to transition to the forward slip.
I think he means 20 degrees.I don't know what a 20 foot crosswind is. Do you mean a 20 knot crosswind? That's a hell of a lot for a student pilot.
I think he means 20 degrees.
20 deg at 60 knots true airspeed is pretty close to 20 knots. Still one hell of a lot.
Crab angle is a linear function of airspeed, so it doesn't make much sense as a way to parametrize a crosswind in this context.
So, 20' crosswind from the right
Sorry for any confusion, I was using the ' nomenclature that someone way above used, and I assumed to be "degrees". I.e landing runway 33, wind from 35 would be 20 degree crosswind.
Where are you getting 60 knots TAS?
A 20 deg crab means the AIRPLANE is 20 deg off straight ahead.
It was simple.Sorry this got so complicated so fast - I think initially this discussion was all "in principle" with no specifics. I.e. "slight crosswind from the right that requires a noticeable crab angle then switches direction about 20 feet off the runway" That sort of thing. I plan to work on this Friday with my instructor, hoping we have similar conditions.
If you can't see the ambiguity, I can't help you. Yes, I know this thread is mostly student pilots, but the solution you assumed doesn't make a whole lot of sense in the larger context. It's quite difficult for a pilot to measure the angle off the runway with precision. The best you can do is a very rough estimate from the windsock -- and there is no way you can tell the difference between 20 and 30 deg. Sounds like someone believed ATIS was right. Crab angle is actually measurable.Where are you getting a "20 degree crab angle?" He said 20 degree cross wind from the right.
If you can't see the ambiguity, I can't help you. Yes, I know this thread is mostly student pilots, but the solution you assumed doesn't make a whole lot of sense in the larger context. It's quite difficult for a pilot to measure the angle off the runway with precision. The best you can do is a very rough estimate from the windsock -- and there is no way you can tell the difference between 20 and 30 deg. Sounds like someone believed ATIS was right. Crab angle is actually measurable.
Sorry for any confusion, I was using the ' nomenclature that someone way above used, and I assumed to be "degrees". I.e landing runway 33, wind from 35 would be 20 degree crosswind. In my example we had variable winds of 0G8kt, but on one attempt it might be 20deg from the right, next 45 from the left, and in almost all cases it would be quite different from approach to flare.
Thanks Guys - Here's what I've been doing (and honestly I have not had great guidance on this from my instructor - and I've read a number of different techniques online, so ... confused.)
I've been "crabbing" while on final. So, 20' crosswind from the right, I set up my crab angle to stay on centerline. My instructor teaches the "dive for the runway" method of landing, so after 3rd knotch of flaps, basically "over the fence" cut power to idle and fly it onto the runway. Flare. Land.
Problem is with the crosswind, crabbing on final works fine, until I cut power, then I get blown off to the side by the time I flare, and in the flare I even got turned pretty sideways on that first one (where the x-wind switched directions).
Sounds like the technique you are describing would have be keep the aircraft longitudinally aligned with the runway centerline using the rudder, and using aileron (dropping one wing somewhat) "turn" the airplane into the wind enough to maintain that alignment? Both methods are discussed on this link:
http://www.askacfi.com/1138/crosswind-takeoffs-and-landings.htm
I think I'm confused because I've been given only direction on this, not instruction. I.e. "more rudder, dont use the aileron" does not really tell me what to DO in this situation. (I presume by that direction my instructor prefers the "crab" technique I was attempting).
My instructor has always taught the slip on short final method. But your troubles sound familiar to what I experienced. I think the answer for me was to not commit to any control forces. I'd be lined up perfect and want to hold it there while the wind changed and threw me off. I just had to get more fluid and go with the flow as the wind does its thing. I'd have a wind from the right change to a wind from the left all during short final, you just have to get your controls right in your head and use what you need when you need it. Like others have said with the slip technique, ailerons for left/right to stay on center, rudder to align nose. I still have trouble judging longitudinal axis alignment, I'll think I'm straight when I'm not.Thanks Guys - Here's what I've been doing (and honestly I have not had great guidance on this from my instructor - and I've read a number of different techniques online, so ... confused.)
I've been "crabbing" while on final. So, 20' crosswind from the right, I set up my crab angle to stay on centerline. My instructor teaches the "dive for the runway" method of landing, so after 3rd knotch of flaps, basically "over the fence" cut power to idle and fly it onto the runway. Flare. Land.
Problem is with the crosswind, crabbing on final works fine, until I cut power, then I get blown off to the side by the time I flare, and in the flare I even got turned pretty sideways on that first one (where the x-wind switched directions).
Sounds like the technique you are describing would have be keep the aircraft longitudinally aligned with the runway centerline using the rudder, and using aileron (dropping one wing somewhat) "turn" the airplane into the wind enough to maintain that alignment? Both methods are discussed on this link:
http://www.askacfi.com/1138/crosswind-takeoffs-and-landings.htm
I think I'm confused because I've been given only direction on this, not instruction. I.e. "more rudder, dont use the aileron" does not really tell me what to DO in this situation. (I presume by that direction my instructor prefers the "crab" technique I was attempting).
Got written done Thursday. 92. I'll take it.Changing the subject to 'where we stand'...
I'm kinda treading water for now till I get my written knocked out and then on to the long XC and then tuning for the finish line.
Did an hour in the pattern today. I was going to go practice maneuvers but the clouds didn't want to cooperate.
Great score... congrats!
Checkride is coming up in four short days. Forecast looks good so far, but likely too windy for me to go up and practice Sunday or Monday. I've been "chair flying" at work and while driving as much as possible to lock this stuff in my head. As long as I don't let my nerves get to me, I'm sure I'll do fine.
Great score... congrats!
Checkride is coming up in four short days. Forecast looks good so far, but likely too windy for me to go up and practice Sunday or Monday. I've been "chair flying" at work and while driving as much as possible to lock this stuff in my head. As long as I don't let my nerves get to me, I'm sure I'll do fine.
That and of course I get weird looks from other drivers trying to pull the steering wheel back at rotation speed with my Bose headset on..after calling "Airspeed alive" and reaching Vr.
Good luck on the checkride by the way!
Cool it the night prior. Nice meal and a glass or three of wine. Get sleep! You're ready for this and will do fine. Good luck!
Yeah, you'll be fine.
I completed my long cross country yesterday and now officially have all my checkboxes completed.
If anyone has any sure-fire tips for judging altitude and when to start the flare, I could sure use them!
Still making progress, even though aviation seems to have its ups and downs....