Altimeter Three by Jolly Logic

Altimeter Two by Jolly Logic
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Product ID : jollythree
Manufacturer: Jolly Logic
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AltimeterThree is a flight altitude recorder that is controlled by your smartphone or tablet.

If you would like to collect and share flight data, then this is the altimeter for you. It is small enough to go almost anywhere, and it can used for almost any flying activity.

It captures your notes and observations on each flight.

You can view an interactive graph of altitude (and for certain sports, 3-axis acceleration) and produce a Microsoft Excel™ spreadsheet of flight data for further analysis.

If GPS is enabled on your phone, the location of each flight is saved, and can be viewed on a map.

Integration with Facebook, Instagram, Twitter, and Flickr allow you to share your flights with just a tap.

AltimeterThree includes a recharging cable, and can be recharged from any USB port.

We suggest you install the app before purchasing the altimeter, to make sure your device is compatible.

(Click the image for a larger view.)


  • » 3-axis, 24g accelerometer can detect launch, acceleration, speed, ejection, and landing
  • » Accurate 19-bit barometric pressure sensor sensitive to altitude changes of less than one foot
  • » Daylight-readable LCD display clearly displays all flight statistics−no computer needed
  • » Rechargeable Lithium Polymer battery lasts for hundreds of launches, no batteries to buy
  • » Recharges in less than 2 hours from any standard USB port, no cable necessary!
  • » Samples pressure over 30 times/second, and acceleration over 244 times/second
  • » Power button turns device ON/OFF and RESETs the display between flights
  • » Automatically powers down to conserve power
  • » Handy tether point allows secure attachment, or independent streamer recovery
  • » Rugged fiberglass and ABS construction to survive crashes

Size and Weight

Size 0.47″ x 0.64″ x 1.93″ 12mm x 16mm x 49mm
Weight 0.24 ounces 6.7 grams

Range and Precision

Max Altitude (above sea level) 29,500 feet 9000 meters
Max Acceleration Minimum of 23 gees
Maximum of 40 gees (careful mounting)
Minimum of 23 gees
Maximum of 40 gees (careful mounting)
Altitude Precision Nearest foot below 10,000
Nearest 10 feet above 10,000 feet
Nearest meter
Acceleration Precision Measured to nearest 0.0007 gee
Displayed to nearest 0.1 gee
Measured to nearest 0.0007 gee
Displayed to nearest 0.1 gee
Speed Precision Nearest MPH Nearest KPH
Timing Precision Shown to nearest 0.1 second Shown to nearest 0.1 second


Simple Instructions

Just want the basics? Here’s how to use the AltimeterThree, in as brief a form as possible:

1. Press and release the button quickly to turn the AltimeterThree on or off.

2. Clear and reset for the next flight by holding the button down and releasing it when “0000″ appears.

3. View detailed information from the last flight by holding the button down and releasing it when “dAtA” appears.

4. Recharge by plugging it into a USB port on a computer. Make sure a red light appears when you plug it in; take it out after the green light appears.


AltimeterThree User Guide

AltimeterThree User Guide


Bluetooth User Guide

Step-by-Step Tour

Here’s a detailed walk through of how to operate the AltimeterThree.

Turning It On and Off

Press the button and release it quickly to turn the AltimeterThree on and off. Even though the button is small, you don’t have to use a sharp object to press it. Just press it with the pad of your finger, and it will “click.”

Accessing the Menu

If you press the button and continue to hold it down, you will be presented with a series of choices on the screen, one after another, which you can select by letting go of the button.

Resetting for the Next Flight

If you hold down the button and let go when you see “0000″, you will clear the results of the last flight and the AltimeterThree will be ready for the next flight. On the screen, you will now see an animated “0″ like this:

After the Flight

The AltimeterThree will automatically display the apogee and top speed of each flight. The display alternates between showing each.

ŒŽ . . .

Detailed Flight Data

To see the additional flight statistics from the most recent flight, hold down the button and let go when you see . The flight statistics are presented one after another. You can interrupt at any time by pressing the button to exit the detailed display.

Here are the screens you will see when you select the “dAtA” option:

What It Means
Burn Time
. . . . . .
The length of time (in seconds) that the engine produces thrust
Peak Acceleration
. . . . . .
The maximum rocket acceleration during engine burn (in Gs)
Average Acceleration
. . . . . .
The average acceleration from ignition until motor burnout (in Gs)
Coast to Apogee Time
. . . . . .
The delay between motor burnout and the moment of highest flight (in seconds)
Apogee to Ejection Time
. . . . . .
The time between the peak of flight and parachute ejection; can be negative if ejection is on the way up (in seconds)
Ejection Altitude
. . . . . .
The altititude at which the parachute is ejected (in feet or meters)
Descent Rate
. . . . . .
The average vertical speed from ejection to landing (in MPH or KPH)
. . . . . .
Time of flight from ignition to landing (in seconds)

Time of flight from ignition to landing (in seconds)

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