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Old 09-04-2007, 09:18 PM
  #61  
wave waker
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Location: greendale, IN
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Default RE: OS 46 powered TC31 the making...

thanks HescoR bout the servo, u know what u gave me an idea, i can really sit the servo upright and still will fit in the box[sm=thumbup.gif], and save extra space.


btw, ok folks, i had a good run this pm. first of all i want to say thanks to my major sponsor my work coz they let me go to the lake early

first run, x447 prop, 15% nitro, boat hardly go to planing, i can see the front hull step is still touching the water, speed attained 40.1mph[8D].

2nd run same set-up but strut was raised by bout 2 mm, speed goes 42mph but i'm not satisfied how the planing.

3rd run strut raised bout 3mm more and angled, speed drops to 38.6[:'(],,i think this time i went to high and prop can't bite no more, so i maintained the set-up and put x447/3 blades and hits 42.2mph,,i like how the boat rides it lifted in level instead of just lifting the bow...the acceleration is very impressive, lots of torque...OS .46 runs like energizer it keeps goin and goin and goin.

during the whole testing i don't have any violent turns and spin which is really common to tc31, so i think it's the pivot of the stock rudder that makes the weird thing...Very happy of how it handles at the speed of 42.2 mph still very stable...

engine turned the x447/2 and x447/3 pretty easy, with 3 bladed the ride is so smooth in turns and acceleration compared to 2 bladed.

though i ordered a skeg strut i might not need it.

boat will race this weekend in Indy under Open RTR hopefully,,then after the race i'l mess it again.

Things i need to do to gain more speed:
1. use 50-65% nitro
2. shorten the rudder
3. test different props
4. leaning the engine
5. try other tuned pipe
6. any suggestion u think, i run-out of idea
still lookin to hit the big 50mph barrier...pretty close but not yet there.

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