Rowing & Sports Performance Monitoring Support

Troubleshooting/FAQs - Using Cox-Vox with SpeedCoach

What is the Speed Coach?
Will it make my boat faster?
Give me an Example
How do I use it with a Cox-Vox?
How does the current affect the speed readings?
How much drag does the impeller create, and will it slow me down?
Does the SpeedCoach have to be used only by the coxswain?

Need Help? 

Our NK Knowledge Center is available 24-7, and has answers to many common questions, along with tips and tricks for using NK products.  

For  email assistance with the installation or operation of your NK product, write techsupport@nkhome.com.

For help with an apparent malfunction, or to arrange or inquire about a repair, write repairs@nkhome.com.

Or call 800.784.4221 (610.447.1555 outside of the USA), Monday to Friday, 9 to 5.

 

What is the Speed Coach?

The Speed Coach is an easy-to-use, affordable performance monitor which provides speed and distance measurements together with elapsed time and stroke rate, Speed is measured by a low-drag, foul and impact resistant impeller which does not require through-hull holes or external wiring for mounting. Memory functions make it easy for the crew to save speed and rate information for later review.

Will it make my boat faster?

The Speedcoach speed display updates every stroke, giving you crew instant feedback on how effectively they are rowing. You and your crew can see if changes in technique and stroke rate are increasing the speed of the boat. You may find that concentration on quick catches is the key to efficient speed. Or, you might find that concentration on the catch generates nothing but check and slower speed. You could try stretching out lay back a few inches. If the boat speed jumps, you'll know that's a good technique modification to concentrate on.

Give me an example.

The SpeedCoach makes it easy to determine your crew's most effective stroke rating. Try the following exercise:

Start out rowing as a comfortable base rating. Every 20 strokes, increase the stroke rating 2 beats. Keep track of the speed of the boat during each shift up. As some point the hull speed will almost certainly start to decrease in spite of the shift up in rate. You will now know the maximum stroke rating that your crew should row at, whether for the start, base, or sprint of a race.

How do I use it with a Cox-Vox?

You can simply add the SpeedCoach and wiring harness to a coxed boat already equipped with a Cox-Vox. The Cox-Vox will continue to work normally whether or not the SpeedCoach is present.

How does the current affect the speed readings?

Simply put, the current does not affect speed readings on the SpeedCoach. The SpeedCoach accurately measures speed and distance though the water so current does not affect you workout distances or times over those distances. By using the distance shown on the SpeedCoach instead of a land-measured distance, you will always be rowing the same length piece regardless of current. This is because the impeller on the boat doesn't 'see' the current in the water. Tot he impeller, you are always sitting on still water.

If