Align your oar sensors.

Before you start

1. Choose the correct saved oar in Connect Oar and connect its sensors.
2. Check Port/Starboard, Scull/Sweep and mounting positions in Oar Settings.
3. Open Align Sensors for that oar. Use the app’s prompts to start and finish each recording.

Keep the mounts secure. Moving recordings do not need a still pause at either end. Keep the blade clear of the water during the level sweeps.

The four alignment movements

1. Bias

   Keep the blade feathered and the oar completely still for 10 seconds. Rest it on a stable support if possible.

2. Feather and square

   Keep the shaft pointing in one direction. Feather and square the blade 5–6 times, without sweeping or lifting the oar.

3. Feathered level sweep

   Keep the blade feathered and the shaft approximately level. Sweep back and forth through at least 90° for 5–6 repetitions.

4. Square level sweep

   Keep the blade square and the shaft approximately level. Sweep back and forth through at least 90° for 5–6 repetitions.

Calculate the alignment after all four recordings are complete, review the result and save it to the intended oar. Recording a replacement movement makes the previous fit out of date; calculate and save again before using that replacement.

When Align both oars is offered for a connected saved pair, perform the guided movements together. Each oar keeps its own alignment. Capture any squared-float reference one oar at a time after saving the alignments.

Optional squared float

1. Save the alignment from the four movements first.
2. Square the blade and let it float on the water. Keep the boat level and the oar steady.
3. Check Outboard, pin to blade tip. If you have separately measured Shaft-axis tip below water, enable that entry and enter the measurement in the displayed units. Otherwise leave it off.
4. Confirm Blade squared and floating; boat level, then tap Start 12-second float. Remain steady for the capture.
5. After the capture is accepted, tap Save to Oar Settings.

The float saves a reference without changing the sensor alignment or bias. Floating the blade alone does not establish an absolute water depth; the optional measured depth supplies that extra information. The saved reference travels with the oar and its workout.

What to save and when to repeat

Check that the saved alignment belongs to the physical oar and its sensor pair. Repeat alignment when a sensor moves, rotates or is replaced. A matching QR label can supply saved alignment, but verify that its mounts and sensor pair still match.

The squared-float reference is retained when alignment changes. Recheck it after the oar or boat setup changes. If a separately measured manual waterline is entered in Workout Settings, that value takes priority until cleared.

Alignment establishes the sensors’ common reference. Stiffness calibration supplies the scale for moment, work and power.

Keep recording and analysis together

The recording saves the alignment, oar settings and available float reference used for that workout. Re-analysis uses that saved setup, even if another oar is selected later.

Record and upload from iPhone → · Cloud Analysis →