Sending Supercapacitors Through the mail for datalogging.

[pipe]

It's hard enough to get a GPS signal in the passenger cabin of a plane let alone the cargo hold. But I suppose you might have some luck in-between flights. I'd probably include a barometer chip instead, not so much concern about power consumption. See if you can find a way of doing the full 6-axis accelerometer/gyroscope thing as well :-)

Shipping a powered-on barometer on a plane? If they catch you, you'll have a hard time explaining yourself to the CIA or a similar agency.

[echen1024]

I've always wanted to do this. I have thought just a lithium cell would work. It would be fun to use a 6 axis gyroscope+timer and try and create your own inertial navigation system.

[rs20]

It's hard enough to get a GPS signal in the passenger cabin of a plane let alone the cargo hold. But I suppose you might have some luck in-between flights. I'd probably include a barometer chip instead, not so much concern about power consumption. See if you can find a way of doing the full 6-axis accelerometer/gyroscope thing as well :-)

Shipping a powered-on barometer on a plane? If they catch you, you'll have a hard time explaining yourself to the CIA or a similar agency.

I see where you're coming from, although a) a barometer that's connected to nothing larger than an AA cell??, and b) is an accelerometer really any worse? I reckon I'd be able to detect when a plane is in flight using accelerometer alone very easily...