need ideas for a sailing kayak


hello everybody with the weather getting warmer down here in the south eastern U.S. my friend has invited me to go camping/kayaking with him and his family i have been kayaking with my friend's family before and had a great time but when we would race kayaks the girls (my friends sister and her friend) would always beat us (the guys) unmercifully mainly because the girls had the 2 person kayak and therefore more people power now this time i need a secret weapon and while i was thinking along the lines of torpedoes and surface to surface missiles i eventually ruled them out due to the danger aspect but then i got the idea i was looking for you see the objective is to get from point A to point B before the opposition not destroy the opposition then get from point A to point B at my own pace so i decided i would need to be able to travel at a faster rate than the girls so what i am thinking of is a sail now here is the challenge i am unable to make any modifications what so ever to the actual kayak so strapping a outboard motor on the kayak is out this leaves me with the idea of making a sail out of a few tent poles and a tarp but since i do not  know much about kayaks i need to know these things

1. how can the sail be anchored to the kayak without damaging or permanently altering the kayak in anyway
2. any ideas on how i can steer i have a few but i would like to hear yours

also i have looked at the project sailyak by zigzagchris https://www.instructables.com/id/Project-SailYak/ 
and while this is helpful i need more specifics as mentioned above

thank you,
fidgety2

Kiteman6 years ago
Don't use a sail, use a power kite - no need to do anything to the kayak, and you'll be able to hide it until the race.
fidgety2 (author)  Kiteman6 years ago
you have me intrigued oh man of kites please explain what is this power kite you speak of
It's a kite designed to provide traction.

Google for power kite, traction kite or kitesurfing.

From a kayak, you'd probably be better off with an LEI kite.

http://en.wikipedia.org/wiki/Kite_types