Hi guys,
Here's some pics of my Flowmaster 650mm. The stock form of the boat was very disappointing, the little outrunner couldn't even get the boat on plane. This was at odds with the beautifully painted hull, so some upgrades were necessary.
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I don't have any pics of the upgrading process, but it's fairly straightforward. The stock wooden internals were carefully cut out with a cutting disc in Dremel.
Then the inside of the hull was given a thorough sand and wipe over with acetone. A carbon fibre inlay was done, along with filling the tips with epoxy. This was my first ever inlay, with the help of my Dad. I applaud the people who can do this with ease and without a helping pair of hands.
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Pool noodles were used for floatation, and tightly fit in the front half of the hull to aid in strengthening the top deck. Also some plywood panels were epoxied under the hatch to support the large air intakes.
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Power is from a TP Motors 2940 7Y 1790kv. TP Motors seem to categorise their motors slightly differently, the motor is 63mm long, not 40mm. The ESC is a Hobbywing 120amp Pro. This has a "turbo" function, using a third channel to increase the motor timing for short periods. I have the normal timing set to 15 degrees, and the turbo set to 26 degrees, is this ok being a Y wind motor?
So far I've been using Zippy Compact 2200mah 3S 60C in series for 6S total, though I have just got some Turnigy Graphene batteries of the same specs. The boat runs well but is very wild, needs some dialing in.
I've also put in the RCM Telemetry system. This is a great little device, and I'll be putting these units into future builds. Speed so far hasn't been great, 73km/h with a 35mm 2 blade, and 56 km/h with a 38mm 3 blade. However I've had only one run on each prop so far, so as mentioned some tuning is needed.
I'll update this thread with speed increases as they develop.
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