Firstly, the power meter calculates the force applied to the paddle by the athlete's hands. The strain gauges in the power meter are located in an arrangement that allows the top (pushing) hand and the bottom (pulling) hand forces to be measured individually.
Secondly, the power meter calculates the velocity at the hands by sampling rotational velocity and acceleration data from the IMU (Inertial Measurement Unit) located inside the shaft.
Power is calculated by multiplying the force of each hand by the velocity of each hand.The power meter has been IPX7 tested which means it can, at a minimum, 'withstand incidental exposure to water of up to 1 meter for up to 30 minutes'.
The shafts are available in a number of different choices of stiffness. The options are listed below:
EXTRA STIFF - 100% carbon high modulus, minimum flex (suitable for only the strongest 200m sprinters).
STIFF - 100% carbon, low flex (suitable for flat water sprint).SOFT - 100% carbon, moderate flex (suitable for marathon, surf ski and multi-sport paddling).
FLEXI SOFT - 70% carbon / 30% Kevlar, high flex (suitable for marathon, surf ski and multi-sport paddlers who prefer a very flexible shaft).
Article 8.4 of Chapter 1 (General Regulations) of the 2015 International Canoe Federation 'Canoe Sprint Competition Rules' states the following with regard to using a power meter in a Canoe Sprint competition:
'A boat or competitor may be equipped with a device which provides real time feedback on performance for use by television or event presentation. The device may be used by the competitor for analysis following a race but in no circumstances may the device be used to provide real time feedback to a competitor during a race.'
With this being said, there is no mention of whether the use of 'a device which provides real time feedback' is not permitted in the disciplines of Canoe Slalom, Canoe Marathon or Canoe Ocean Racing.You may be charged import duty and sales tax by Customs in your country when you buy a power meter from outside New Zealand.
The import duty is calculated as a percentage of the customs value of the goods. The customs value is made up of the price paid for the goods plus the shipping cost.
The sales tax is calculated as a percentage of the customs value plus the import duty. Duty and sales tax are due at the time your goods are declared to Customs; this will normally happen soon after the goods arrive in your country. To find the import duty rate and sales tax for your country, simply click here.
Yes, the power meter is compatible with all USB ANT sticks including those from Garmin and Suunto.
Yes, the Garmin Forerunner 310XT can display and record the 'Power' and 'Stroke-rate' metrics measured by the power meter. With this being said, the Garmin Forerunner 310XT does not support the 'Power Balance' metric (the percentage of power generate on the left stroke vs. the power generated on the right stroke).
The expected cycle life of the batteries as per the battery datasheet is > 500 recharge cycles which equates to a minimum expected life span of 16.5 years based on paddling for an hour every single day. Should any battery require replacement, One Giant Leap have the necessary equipment to replace the batteries at our factory in New Zealand.
The power meter is warranted to be free from defects in materials and workmanship for one year from the date of purchase. Within this period, One Giant Leap will, at its sole option, repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided the customer shall be responsible for any transportation cost. More information can be found here.