Oh wait. I suppose I threw a G force in mach category. I suppose it is possible.
A G is 9.8m/s sooo
At 18Gsx9.8=176.4m/s
1 m/s = 2.237mph
Thus,18Gs = 176.4 m/s = 394mph?
Does anyone concur with this?
Am I going to have to convert the Gs everytime? Uggh
The Altimeter 2 and 3 do different things. I have the 2 and it measures peak altitude, peak speed, peak G, Average G, etc. These are all single points of data. Looking at the Jolly Logic web page the 3 will download data to your device and show you a graph of the altitude at 20 samples a second. You also get the accelerometer data for each axis at the same 20 samples a second.Mmkay. So I bought an altimeter that shows me a little information, requiring a lot of physics and mathematical application to gain surrounding information.
Doesn't Altimeter 2 display a lot more on the LCD than A3 on a tablet?
Did I pay more for less?
Anybody else have Altimeter 3?
Am I asking for more than an altimeter produces?
If you have flight data (altitude measurements) at 20 Hz, you can easily calculate everything you want in a spreadsheet and then graph it any way you want.Right. Altimeter three basically only gives amount of Gs, flight duration and peak altitude produced on a chart. The in between specifics produced by Altimeter two are yet to be found.
For what it's worth, don't try to view everything in the chart all at once. I just changed the settings to see all three axis graphed with all the other options, now the app freezes when I open the chart. I am unable to change the setting because it freezes before I can get to the settings within the chart page.
Also, don't re install the application. You'll lose all flights data.
I don't have a computer with excel, only a smart phone and no wifi. If I wanted to chart the provided data from A2 (which is sweet) I would have for each flight.If you have flight data (altitude measurements) at 20 Hz, you can easily calculate everything you want in a spreadsheet and then graph it any way you want.
[emoji1010] Steve Shannon [emoji1010]
Here's the simple calculation, which should reliably tell you your average upward velocity: from your graph apogee was 767 ft at time t=5.55 s. Divide 767/5.55 you get 138 ft/s. That's misleading because you know both end points are 0. It's probably not out of line to think that your max velocity was twice that.Oh wait. I suppose I threw a G force in mach category. I suppose it is possible.
A G is 9.8m/s sooo
At 18Gsx9.8=176.4m/s
1 m/s = 2.237mph
Thus,18Gs = 176.4 m/s = 394mph?
Does anyone concur with this?
Am I going to have to convert the Gs everytime? Uggh
I did just that. I think being super impatient or receiving the altimeter as a father's day gift got me excited/let down quickly.You're not missing anything. The interface could calculate the other numbers. Ask for them as a future improvement.
[emoji1010] Steve Shannon [emoji1010]
This.... I just changed the settings to see all three axis graphed with all the other options, now the app freezes when I open the chart. I am unable to change the setting because it freezes before I can get to the settings within the chart page.
Ah ok... doing a power off reset kills the app so I can start it again.
Won't the altimeter still have the flight data? Is the flight data not saved as a separate file on the tablet?
Good job!Yeah had tried email but it caused it too freeze too.
I just had a look at the files and could only find one folder, so copied that to my desktop and then back at the app manager I cleared all data.
Restarting the app I was now able to use as per normal with the demo flight.
I swapped back the data folder I had saved but on restarting the app there was still only the one demo flight. Doh!
Fortunately, pairing the Alt and app again did downloaded the last flight. Emailing the data to myself now didn't freeze the app.
Cheers.
What were you flying? Did you create small ports in your fuselage or payload compartment to allow air to enter freely?I tried my Altimeter 3 4 times and never got good data on a flight. Got great data chucking it into the air in the backyard, but that's not really what I wanted to be tracking the descent rate of...
I'll give it another shot, but at this point, I'm thinking I should have went with the Pnut.
Later!
--Coop
What were you flying? Did you create small ports in your fuselage or payload compartment to allow air to enter freely?
Flying: Screamin' Green Meanie, F-70 and a boring plastic chute.Care to describe your process, and what the A3 says on its screen and what the app shows? I've gotten a bunch of successful flights, and lost data a few times. So I think things can be a bit touchy, but if you've never gotten good data that seems like something more likely wrong with the process, or perhaps just a bad unit I guess.