We published a nice article on AOA a few years ago and included a DIY
diagram to make your own indicator.
http://issuu.com/contact.magazine/docs/ ... _thatcher_
Pat
AOA Indicator
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earthstaraircraft
Re: AOA Indicator
Hi all
My dog gets up at 5:30 in the morning and woof's once every minute till my wife Leslie gets up. because he has noticed that routine.
And wants to help.
We have a lot of capabilities that we mask by practicing a dependence on
Machines and indicators.
When I test fly a brand new airplane,
I do not have time for distractions like looking at an airspeed indicator. I know that angle of attack is the control of airspeed. So I look out the window and see the angle of the view. If I am flying a hang glider there is no reference to airframe, but the human brain being brain much bigger than my dogs, can put together an image and correlates that with other sensory Inputs to give me a full understanding of what is needed of me. After I have told myself that I do know how to fly and allow my brain to do what it does best every thing falls in to place for a fun and efficient experience.
If the meaning of life is to show gravity who is boss, than we can't afford to let things distract us from our ability to see life for what it really is. Use the Gage's that you need and get rid of anything that you don't need.
Happy Flying
Mark
Sent from my iPhone
My dog gets up at 5:30 in the morning and woof's once every minute till my wife Leslie gets up. because he has noticed that routine.
And wants to help.
We have a lot of capabilities that we mask by practicing a dependence on
Machines and indicators.
When I test fly a brand new airplane,
I do not have time for distractions like looking at an airspeed indicator. I know that angle of attack is the control of airspeed. So I look out the window and see the angle of the view. If I am flying a hang glider there is no reference to airframe, but the human brain being brain much bigger than my dogs, can put together an image and correlates that with other sensory Inputs to give me a full understanding of what is needed of me. After I have told myself that I do know how to fly and allow my brain to do what it does best every thing falls in to place for a fun and efficient experience.
If the meaning of life is to show gravity who is boss, than we can't afford to let things distract us from our ability to see life for what it really is. Use the Gage's that you need and get rid of anything that you don't need.
Happy Flying
Mark
Sent from my iPhone
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Pat_Panzera
Re: AOA Indicator
Some people are born with it, some are not.
When I fly sailplanes, I really don't need a variometer to tell me when I'm
in lift or sink- I just feel it. And when I'm in the pattern, be it
sailplane or turboprop, I really don't need an altimeter or an ASI- all my
other senses kick in and keep me within just a few feet of my target
altitude and within a few mph of my target speed.
But for the life of me, I can't ever tell if I'm flying coordinated-
therefore the yaw string or the ball is in my scan.
If an AOA indicator helps a pilot maintain a safety margin, then how can we
be against it?
Pat
When I fly sailplanes, I really don't need a variometer to tell me when I'm
in lift or sink- I just feel it. And when I'm in the pattern, be it
sailplane or turboprop, I really don't need an altimeter or an ASI- all my
other senses kick in and keep me within just a few feet of my target
altitude and within a few mph of my target speed.
But for the life of me, I can't ever tell if I'm flying coordinated-
therefore the yaw string or the ball is in my scan.
If an AOA indicator helps a pilot maintain a safety margin, then how can we
be against it?
Pat
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rahulchoudhary73
Re: AOA Indicator
i think the best video is the odyssey landing with Mrs. Beierle, and the commentator singing "what a pretty landing, Mark"
could we have a new picture on the forum? Maybe like the odyssey parked on the ground, two dogs sitting on the wings like the Phoenix at Giza, with Leslie, in monochrome like the photograph below...
Aloha,
Rahul
could we have a new picture on the forum? Maybe like the odyssey parked on the ground, two dogs sitting on the wings like the Phoenix at Giza, with Leslie, in monochrome like the photograph below...
Aloha,
Rahul
- Attachments
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rahulchoudhary73
Re: AOA Indicator
i think the best video is the odyssey landing with Mrs. Beierle, and the commentator singing "what a pretty landing, Mark"
could we have a new picture on the forum? Maybe like the odyssey parked on the ground, two dogs sitting on the wings like the Phoenix at Giza, with Leslie, in monochrome like the photograph below...
Aloha,
Rahul
could we have a new picture on the forum? Maybe like the odyssey parked on the ground, two dogs sitting on the wings like the Phoenix at Giza, with Leslie, in monochrome like the photograph below...
Aloha,
Rahul
- Attachments
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rahulchoudhary73
Re: AOA Indicator
How does Earthstar detect stall?
birds sense it through their nerves and activate their thumb feathers (alula)..
birds sense it through their nerves and activate their thumb feathers (alula)..
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blaswichk
Re: AOA Indicator
Hmmmm, . . . . . . . . . seems to me that when the stall is ready to occur, the stick gets really mushy and takes much more travel to hold level flight (if you can). Our nice thick airfoil gives us a nice mushy margin before lift completely disappears and the houses and cars start getting bigger.
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rahulchoudhary73
Re: AOA Indicator
13.4 knots, lowest ultralight speed record
http://experimenter.epubxp.com/i/149316/36
how about Krueger flaps on an Earthstar?
http://experimenter.epubxp.com/i/149316/36
how about Krueger flaps on an Earthstar?
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earthstaraircraft
Re: AOA Indicator
We don't have thumb feathers.
But what we do have is an aircraft that I have been refining over the last 40 years to have gentle stall that would rather not spin. The wing tips are also designed to move the center of lift aft as angle of attack is increased. This makes it harder to stall. Because it won't over rotate.
We have generous wash out, or Wing twist. That causes the Stall to start at the center of the span and work it's way out. Giving good aileron control in the stall attempt.
My airfoil shape also has one of the highest lift coefficients in the industry at 2 comparing to 1.6 for the 150 -152. That way we can do more with a smaller wing.
Happy Flying
Mark Beierle, Earthstar Aircraft.
Sent from my iPhone
But what we do have is an aircraft that I have been refining over the last 40 years to have gentle stall that would rather not spin. The wing tips are also designed to move the center of lift aft as angle of attack is increased. This makes it harder to stall. Because it won't over rotate.
We have generous wash out, or Wing twist. That causes the Stall to start at the center of the span and work it's way out. Giving good aileron control in the stall attempt.
My airfoil shape also has one of the highest lift coefficients in the industry at 2 comparing to 1.6 for the 150 -152. That way we can do more with a smaller wing.
Happy Flying
Mark Beierle, Earthstar Aircraft.
Sent from my iPhone
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mkoxxy
Re: AOA Indicator
I cannot contribute much to this thread, not having flown my eGull yet. But
I am going to take Mark's advise to try flying by the seat of my pants
before revisiting my initial plan to install an AOA indicator. I have been
windsurfing for many years, which showed me the value of "becoming one with
your sail", without instruments and electric actuators in the way. This
also goes for flap deployment.
Of course, flying is 3-dimensional (and less forgiving), which makes it
necessary to rely on instruments in some situations (loss of visuals, like
in a cloud). I plan on installing a Dynon EFIS.
Also, I do want to explore the eGull's capabilities as a glider. Detecting
minimal lift (or sink) may require something like a variometer. Or are
modern solid-state accelerometers up to the task?
I am going to take Mark's advise to try flying by the seat of my pants
before revisiting my initial plan to install an AOA indicator. I have been
windsurfing for many years, which showed me the value of "becoming one with
your sail", without instruments and electric actuators in the way. This
also goes for flap deployment.
Of course, flying is 3-dimensional (and less forgiving), which makes it
necessary to rely on instruments in some situations (loss of visuals, like
in a cloud). I plan on installing a Dynon EFIS.
Also, I do want to explore the eGull's capabilities as a glider. Detecting
minimal lift (or sink) may require something like a variometer. Or are
modern solid-state accelerometers up to the task?