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Author Topic: Omra Makara D Class  (Read 180202 times)

pete_486

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Re: Omra Makara D Class
« Reply #125 on: September 14, 2007, 08:56:32 pm »

did you mean my makara Danny? or Al's razor...............Pete
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omra85

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Re: Omra Makara D Class
« Reply #126 on: September 14, 2007, 09:18:17 pm »

If you've a pony tail - it was yours  ;D
However - after watching it again - ignore the last bumph about the fins  :o :o  Its turning well enough!
Just don't try to turn quick left then right  O0 ;D ;D
Danny
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pete_486

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Re: Omra Makara D Class
« Reply #127 on: September 15, 2007, 12:21:44 am »

yeah im the one with the pony tail Danny and it does turn quick but that last turn i went in at full bore i was just seeing what she was capable of.............Pete
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martno1fan

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Re: Omra Makara D Class
« Reply #128 on: September 15, 2007, 08:11:40 am »

When you gonna sort out the hopping? seems like your losing some speed there ;)have you tried adjusting the strut and balance etc.Simons doesnt seem to hop and i dont believe he has trim tabs so im sure you can sort it.I actually like the sound of the sikk motor how do they compare to a modded zen acceleration wise ? seeing as they run big props lower rpm are they a little slower out of the turn? maybe that could also be the reason for spinning out in the turn?ie the big prop.I would think a higher revving motor would corner better and accelerate faster.Im not knocking sikk either just a genuine question about them.
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2772e

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Re: Omra Makara D Class
« Reply #129 on: September 15, 2007, 08:37:35 pm »

I think my C of G is further forward and i add up to two kilos of weight when its windy or rough?

Regards

Simon
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martno1fan

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Re: Omra Makara D Class
« Reply #130 on: September 15, 2007, 10:37:29 pm »

I think my C of G is further forward and i add up to two kilos of weight when its windy or rough?

Regards

Simon
2 kilos  :o ,out of interest Simon wheres your c of g ?.
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kurt cave sikk 27

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Re: Omra Makara D Class
« Reply #131 on: September 15, 2007, 10:43:27 pm »

we run the extra wieght when its really rough to keep the boat on the water at speed and not lift out when the wind gets under it,remember mart,we race no matter what ;D O0
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2772e

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Re: Omra Makara D Class
« Reply #132 on: September 16, 2007, 10:50:17 am »

Mart,

Just measured it its about 30% forward from the transom, petrol tank is mounted aft of the engine. From the stern:

Radio Box, Fuel tank, Engine, Added weight?, Bulkhead, old nitro fuel containers (for buoyancy)

Hope this helps.

And remember NO trim tabs on mine.

Regards

Simon
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martno1fan

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Re: Omra Makara D Class
« Reply #133 on: September 16, 2007, 04:09:47 pm »

so if you had the balance point at 25% the front of the boat would be less flighty to start with am i right?.
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kurt cave sikk 27

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Re: Omra Makara D Class
« Reply #134 on: September 16, 2007, 05:18:09 pm »

no mart.the more forward the engine the more in the water she will sit,the further back the more out of the water O0
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2772e

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Re: Omra Makara D Class
« Reply #135 on: September 16, 2007, 07:13:08 pm »

Mart, Kurt is right weight back puts the bow in the air, weight forward puts the bow in the waves!

The fuel tank is also behind, as the weight of a litre of fuel burns off it can make the boat flighty if forward of the C of G.

My set up gives stability at all weights but she sits up more as the fuel lightens.

I add weight to the front of the V at water line when things get rough to keep the bow down. Not too much though. If she wave jumps don't want all the weight at the front. Otherwise we have a 40 mph torpedo and end of race!

SO are you coming racing?????

Simon
 ;D
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pete_486

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Re: Omra Makara D Class
« Reply #136 on: September 16, 2007, 09:45:29 pm »

my makara today but still needs some work doing............Pete

http://www.youtube.com/watch?v=FP2dPD8Wflo
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martno1fan

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Re: Omra Makara D Class
« Reply #137 on: September 16, 2007, 10:38:54 pm »

my makara today but still needs some work doing............Pete

http://www.youtube.com/watch?v=FP2dPD8Wflo

Thats more like it mate ,sounded like the engine was deff revving better did you change the prop? or raise the drive line ?.
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pete_486

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Re: Omra Makara D Class
« Reply #138 on: September 16, 2007, 10:44:07 pm »

yep 275 prop but still not fast enough............Pete
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martno1fan

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Re: Omra Makara D Class
« Reply #139 on: September 16, 2007, 10:44:37 pm »

no mart.the more forward the engine the more in the water she will sit,the further back the more out of the water O0
oops yup that makes more sense dunno what i was thinking lol  ::).anyway mines at 30% ,ill keep some weight handy in case its windy when i run her the first time which should be a cpl of weeks time  O0.
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martno1fan

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Re: Omra Makara D Class
« Reply #140 on: September 16, 2007, 10:55:06 pm »

yep 275 prop but still not fast enough............Pete
  Haha and after all you guys said about the sikk swinging a big prop the old dependable 275 comes to the rescue  O0.Looks good mate a bit more adjustment on the drive and she will be there id say  O0.might wanna try a 3 blade prop too 6717/3 or 6718/3 from propshop is what i was advised for a full modded 230 engine im getting soon .what sort of rpm does the sikk put out? the 230 im getting puts out 17,000 plus.maybe kurt has a cpl you could try  ;).
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pete_486

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Re: Omra Makara D Class
« Reply #141 on: September 16, 2007, 11:02:14 pm »

ive just took a 3 blade off it a 270/3 im sticking to a 275 i think. i had some good advice from a few people today including Dave and Kurt so ill ajust it a bit more and test it at queens park tommorow............Pete
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martno1fan

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Re: Omra Makara D Class
« Reply #142 on: September 16, 2007, 11:20:18 pm »

never heard of that prop but the propshop ones are suposed to be great just thought your prop guru might have one you could try  ;).goo luck with it ,but get some paint on that hull  O0.
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pete_486

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Re: Omra Makara D Class
« Reply #143 on: September 16, 2007, 11:53:01 pm »

my mate has a paint shop and he owes me one or three so when i get it all set up properly its being done yellow with a dewalt theme and my other mate is a signwriter and he owes me one too so the stickers are coming off him ;D it should look good with the three men painted up and mounted on the hatch.............Pete






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martno1fan

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Re: Omra Makara D Class
« Reply #144 on: September 17, 2007, 12:33:28 am »

cool im trying to think up a scheme for my new hull to go on the orange, my mate in the states will make me the decals again ill pay for materials and shipping again so a cpl of quid will sort that  O0 err sorry dollars  ;D.ps i dont think Als talking to me  ::) ,by the way if weathers crap next weekend i wont be making the trip but i wish you luck the boat should go well,but be warned that lake gets very rough when the winds blowing  ;).
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pete_486

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Re: Omra Makara D Class
« Reply #145 on: September 17, 2007, 12:46:13 am »

me and the boat are not ready to race......... 1....... im not practised enough to race........2.........the boat is not ready.......... 3.........i would NOT like to hit another boat with my inability to drive in a race so when i feel im ready i WILL race and that is a cert...........Pete
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omra85

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Re: Omra Makara D Class
« Reply #146 on: September 17, 2007, 01:00:25 pm »

Pete

"yep 275 prop but still not fast enough"

There's no such thing as "FAST ENOUGH"  ;D ;D ;D ;D

Danny
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kurt cave sikk 27

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Re: Omra Makara D Class
« Reply #147 on: September 17, 2007, 04:57:59 pm »

mart,we didnt have time to really set petes boat up yesturday.as i was setting up my new boat which is running fast,as for swinging a big prop mate,i run a 482 prop on my apachee.thats 82 mm wide mate,they dont come much bigger than that.and my apachee is no slowboat,we do have to richen the engine up to pull that size prop.but pull it it will.try that size prop on a zen mate??? >:( >:( my mate runs a quickdraw and it WONT pull it.we put the 275 on petes boat without doing anything else just to see how it will run.but next time we are at the lake we will run a 482 and set the engine up to run it and video it.or i will video my apachee with it on,just to prove a small point to you. O0 O0
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martno1fan

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Re: Omra Makara D Class
« Reply #148 on: September 17, 2007, 07:07:40 pm »

i wasnt having a dig i was trying to suggest a better prop im sure it will go better with a smaller prop versus a big one lol as it showed in the last video,now your on about fattening the mix?.i wasnt having a go whatsoever as for a zen spinning a 280 prop, no problem just fatten up the mix on the carb and she will spin it.not saying it will spin it as good as the sikk as i wouldnt know but it will def spin it.i run a 280 on my weedy,im sure a zen will spin it if that will,carb just needs fattening up to use the lower powerband of the motor.isnt that what your intending to do to his carb to make it spin the 482 prop? which is also the prop of choice for a weedy engine according to mr marles   ;).
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martno1fan

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Re: Omra Makara D Class
« Reply #149 on: September 17, 2007, 09:05:22 pm »

by the way no need to be so touchy mate no harm meant  ;),but can you explain why if petes engine needed the smaller prop to let the engine rev you are now intending to stick a big prop back on and richen the mix? surely that defeats the objective of running a modded motor?.it was obvious from the second video it likes the smaller prop so if it were mine id stick with it and rather than go bigger id try the 3 blade props i mentioned,but thats just my honest opinion.you have more experience than me but thats what i would do  ;).
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