Checkride Tips 1 Trike flying stalls and what not to do stalling a weight-shift control aircraft
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- Опубликовано: 22 авг 2024
- Paul Hamilton demonstrates various stalls and provides some tips on takeoff, minimum controlled airspeed and stalls for the FAA Practical Test Chechride.
I am asked many times from pilots learning to fly weight-shift control aircraft and applicants getting ready for their practical test checkride about stalls. Here is a demonstration of the recommended stall procedure for the checkride and some other stalls, not recommended, for further information of performing stalls.
Here is some information on the basic aerodynamics of stalls for WSC trikes.
As the AOA increases to large values on the wing chord, the air separates starting at the back of the airfoil. As the AOA increases, the separated air moves forward towards the leading edge. The critical AOA is the point at which the wing is totally stalled, producing no lift-regardless of airspeed, flight attitude, or weight.
Because the AOA of the WSC wing root chord/nose is so much higher than the AOA of the tips, the nose stalls before the tips. It is similar to stalling with the airplane canard in which the nose stalls first, the main wing (or tips for the WSC aircraft) continues to fly, and the nose drops due to lack of lift.
In most normal situations, the root chord/nose stalls first because it is at a much higher AOA. The tips continue to fl y, making the WSC wing resistant to a complete wing stall. A pilot can even bring the aircraft into a high pitch angle stall attitude and keep the nose high. The nose stalls and rotates down because of the loss of lift, while the tips keep flying and maintain control of the aircraft.
If flying within the operating limitations of the aircraft and the WSC reaches a high AOA, the nose stalls, but the tips continue flying. However, it must be understood that there are many wing designs with many types of stall characteristics for each unique design. For example, high-performance wings could have less twist to gain performance, which could cause the wing to stall more abruptly than a training wing with more twist.
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Thanks. It's great to have these lessons on video like this. When I was learning around 2000 there was no such camera angles to study from. It's really nice.
Hi Paul, thanks for your Tips, they really are of great value and hard to find.
The trike wing stalls at the nose first and the tips keep flying making the trike stall very easy/smooth
love your videos paul so easy to understand, and keeps me thinking about when i fly ,you
never stop learning
Yvonne Sly always learning
I love your videos for the flight info and the amazing shots of tahoe, washoe and the sierras.
Awesome.
Thank you! Cheers!
Hello Mr Hamilton are you not teaching or flying anymore. As I don't see you post new videos?
Yes I am teaching and flying almost every day.
Thanks for this video Paul. Stalls is something I have to get my head around (I am still training). Also, I have read that when you do a 360 turn, you could fly into your own vortex wake turbulence causing you all sorts of dramas. When you did your turn, were you affected by the vortex? - if not why not?
Thanks
Is there another video with power off stalls? It would be useful for engine out situations, forced landings, stall,on approach.
Yes I have them in my training course elearning.SportAviationCenter.com
great vid !!!!!
Good vid and interesting, but I must say that it doesn't look you're invoking a full stall at all. The nose isn't dropping unless you pull back on the bar. In a fully developed stall, the nose drops into a 'mush' before you increase power and pull the bar back to recover. You may be feeling pre-stall buffet but not a fully developed stall as far as I can see. To be fair though I'm not in the cockpit, so it is difficult to tell for sure.
The trike stalls like a canard because of its design. For the checkride you are supposed to recognize and recover from an impending stall and loose the minimum altitude. Not get into a full stall with altitude loss.
does the whole wing stall ? or does the stall affect left or right like in say a normal two wing aircraft, watching it does not even look like a conventional stall apart from the movement of the trike / wing, thanks.
I'm transitioning from a FLPHG to a trike. What's your rpms on takeoff and what's your rotation speed on take off. On the FLPHG as soon as I lift off I pull in on the bar. I notice you push out and the immediately pull back in. Will the trike take off without you pushing out?
***** Each trike is different. Some you must push out to rotate, others take off on their own when they reach takeoff speed. RPM's on takeoff is simply full power. About 5500 RPM for the Rotax 912 engine and 6500 RPM for the Rotax 582 and 503 engines
What would be the max safe rate of climb this probably. Varies from the wing and horsepower
Rob Glodowski Yes climb rate is based on density altitude, weight, wing size and horsepower. Generally, some climb at 200 feet per minute, others climb at 1500 feet per minute
Awesome video. Where do you teach?
Washoe lake and slide side. My wife likes your trikes.
Are these susceptible to tip stall?
appcarpenter1 The are NOT susceptible to tip stalls because the design has the tips at a lower angle of attack than the root so the tips they stay flying when the root/middle is stalled. Very safe and stable.
I was thinking that looked a lot like the miden carson area
it is
Skål 🍺 🍺 🍺
What is Min. Air Speed to Cause a Stall on this Flex Wing Unit???
stall speed depends on allot of factors mainly wing size but ranges from 20 MPH to 40 MPH
hi paul are these hours loggable as total time
Yes this is FAA flight training.
I've heard that 10000 feet is the legal limit w/o oxygen, but if you wanted to fudge it a little bit and go up to 10560 feet to make it an even 2 miles up, could you get away with it? Or is the FAA gonna find out and slap you with a big fine for going 560 feet over? (I'm talking about over flat farm land......not hugging up next to a huge mountain)
+Dreaklock It is kind of liker asking a question such as: If you are driving and stop at a stop light, there is no one around. and you go through it when it is red, will they get you and give you a ticket. Probably not. Typically over flat lands there is not much advantage to going higher, it is more fun to fly low.
+Paul Hamilton I see. As far as the altitude goes, is it based off the ground (10000 feet off the ground) or is it based off sea level? So if you're over a place where the ground is 2000 feet above sea level, does that mean you can only go 8000 feet max above the ground (which would be 10000 ft above sea level)? Or is the ground always considered "0 feet"?
Going up high has always interested me (especially in an open vehicle) but of all the videos I've seen, it does seem a lot more interesting when the pilot is flying low. Especially when you're over a beautiful spot.
Thanks for the response!
It is like the speed limit while driving. If it is 65 and you go 70 will the cops get you. If you roll through a stop sign will the cops get you?If you go over 10,000 feet and have a mid air with an IFR aircraft, this is bad for everybody.The rules are basically made for safety. If you follow them you will be safer.
Oxygen by the regulations is needed above 12,500 up to 14,000 feet beyond 30 minutes or above 14k for any period of time.
Thanks Paul where are you located? i live in Bend Oregon can you advise me about local ultralite schools?
it is hard to find local schools that specialize in trikes. I have the most comprehensive list of trike schools at trikepilot.sportaviationcenter.com/sport-pilot-locator/ Many times you will have to travel for a trike school.
I'd love to learn that but from what I see the pitch controls are reversed compared to a glider. I am quite sure I would kill myself in one or the other just because of wrong muscle memory.
I jump back and forth between airplane and trike and you get used to it.
Yes you fly through your own wake but it is just a little bump. No big deal.
Sorry but it's not a good idea to do that. In the UK we are taught to limit a level turn to 270 degrees to prevent flying through our own wake turbulence as it can cause loss of control or overstress, or even breakup of the aircraft.
ok hay
Price
Depends. Aircraft (new or old) lessons, Intro flight. Most questions answered SportAviationCenter.com
How about just hold it out and REALLY stall the crap out of it? Learn to fly in a mush. Been there, flown that..Flew Slide Mtn., flew HG 1/3 of the way around Lake Tahoe and landed on the golf course in Incline Village, and flew a 2-place sailplane to 14k out of Minden.