On 09/11/2013, at about 10:30 a.m., these two vessels were operating on Lake Chelan, located in Chelan county WA.
 
V2 was eastbound on Lake Chelan about 4 miles uplake from the base of the lake.  V1 was behind V2.  V2 slowed down to check on V1.  (V1) a first time PWC operator slowed to turn.  (V1) was unaware that to turn a PWC you must use throttle.  V1 was unable to turn and impacted V2 on the left side.  
 
 (V1) was thrown into the water.  V2 was hit by V1 and v2operator was thrown over the handle bars.  V2operator was struck by V1 sustaining a broken/fractured right leg.
 
One injury / No fatalities
There was no alcohol involvement.
V1 reported damages of $500.  V2 total loss - estimate of $5000.00
Operators of both vessels were wearing a PFD.
Neither operator had a mandatory Boater Education Card.
There were no Rules of the Road Violations.
Chelan