Cell Phones/Ipad Gyroscope

Inverted25 said:


Thats what I am saying. I was getting into the attitude indicator in the my last discussion just failed to mention that. By using airspeed combined with how many degrees per second the airplane is turning is how they probaly determine your bank angle to show on the simulated panel.

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But there is no attitude indicator on the simulated panel.

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Inverted25 said:


Thats what I am saying. I was getting into the attitude indicator in the my last discussion just failed to mention that. By using airspeed combined with how many degrees per second the airplane is turning is how they probaly determine your bank angle to show on the simulated panel.

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Click to expand...

They can never use "Airspeed" because the GPS does not have that information.
 
I have a phone (Palm Pre) equipped with an accelerometer, and messed around with using an attitude indicator app for it. It's actually surprisingly accurate, and although I wouldn't use it for sole-source guidance it might help in a pinch.
 
Inverted25 said:
Yea what he said. It gives you a airspeed indicator but its based off ground speed. Same thing with the heading indicator. It gives your tracking heading. Never the less it could be very handy should you loose your instruments. I'm not 100% sure how the turn coordinator works bc it works no matter how you hold the device. My guess is if your tracking is changing to the left it makes the airplane turn left. I never looked that far into it though.

My point simply was if hits the fan it could be used for a situational awareness tool if you lost your instruments.
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I know someone that realized they had lost the gyro in IMC BECAUSE of the GPS. It helped somewhat in giving information until they could break out of the clouds (luckily with land and lights directly ahead).
 
The iPad/ iPhone does not simply use gravity to know which way is up or down. There are multiple accelerometers inside these things, and yes, if an app had full access to their data, it could easily double as a (non-certified obviously) attitude type instrument. In fact, there is some VFR-only experimental out there, that actually uses an iPad as a PFD/ MFD.
 
Patrick said:
The iPad/ iPhone does not simply use gravity to know which way is up or down. There are multiple accelerometers inside these things, and yes, if an app had full access to their data, it could easily double as a (non-certified obviously) attitude type instrument. In fact, there is some VFR-only experimental out there, that actually uses an iPad as a PFD/ MFD.
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Accelerometers can easily be fooled by g-forces. That is the only thing they measure. The gyro in the iPhone 4 and the iPad 2 has potential if the developers are able to utilize it.

Where's TGrayson when we need him?
 
Dudes -

NONE of the iphone/ipad "accelerometers" currently in play can be used as an attitude platform. Period. They're ALL based on gravity to establish orientation and can't be manually caged to an objective "horizon". They will all be spoofed by the acceleration forces in flight and will not be able to maintain an objective attitude or be caged.

It's VERY dangerous to think that any of these tools can be used for any kind of instrument flight safely.
 
Hacker15e said:
Dudes -

NONE of the iphone/ipad "accelerometers" currently in play can be used as an attitude platform. Period. They're ALL based on gravity to establish orientation and can't be manually caged to an objective "horizon". They will all be spoofed by the acceleration forces in flight and will not be able to maintain an objective attitude or be caged.

It's VERY dangerous to think that any of these tools can be used for any kind of instrument flight safely.
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This thread gives me the same chills as "Airplane on a treadmill" threads.
 
USMCmech said:
I think it's more a case of many people not understanding how the iPhone "gyros" work rather than not understanding basic physics.
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Well, it seems everyone who thinks it would work are using the term accelerometer, a very different animal from a gyro. I for one, think the gyros could be useful in an emergency, in the unlikely event you had the app running should your real instruments take a nap. Unfortunately, no apps have yet to show any success accessing the gyro data. Doesn't make any sense to me sense some games seem able to use it.
 
Inverted25 said:
Yea what he said. It gives you a airspeed indicator but its based off ground speed. Same thing with the heading indicator. It gives your tracking heading. Never the less it could be very handy should you loose your instruments. I'm not 100% sure how the turn coordinator works bc it works no matter how you hold the device. My guess is if your tracking is changing to the left it makes the airplane turn left. I never looked that far into it though.

My point simply was if hits the fan it could be used for a situational awareness tool if you lost your instruments.
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I see. I thought there might be a way to for it to talk to a PFD and display that info.
 
I had always thought the iPhone/ iPad accelerometers/ gyros were more advanced than that.....but hey, learn something new everyday. I use my iPad all the time for charts and all that jazz, but that's about it when I'm in the air with it....
 
Hacker15e said:
Dudes -

NONE of the iphone/ipad "accelerometers" currently in play can be used as an attitude platform. Period. They're ALL based on gravity to establish orientation and can't be manually caged to an objective "horizon". They will all be spoofed by the acceleration forces in flight and will not be able to maintain an objective attitude or be caged.

It's VERY dangerous to think that any of these tools can be used for any kind of instrument flight safely.
Click to expand...

Dear god thanks, somebody finally says it!
 
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