Hi from the UK

[Cyberdave]

Hi Guys,
Just signed up as I'm building a boogie board airboat and was looking at a thread.
I'm in Staffordshire which is right in the middle of the UK.
I sail at a local power station lake where we also fly indoor helis.
We have a cheap stock formula "Club 500" speedboat racing series which starts next week for 2011, I was fortunate enough to win last year so am racing number 1!
Anyhow I thought I'd post a video as a way of introduction.
This is my offshore warrior, stock with no adjustments filmed by my 9 year old son Joel....

http://www.youtube.com/watch?v=R9xL3nqbW2A

[martin]

Hi & welcome, im also in the UK but right down on the south coast in Portsmouth. I think the Joysway Warrior is one of the best micro boats around. Ive seen a lot of fancy quite expensive micro mono hulls run & they dont come close to how the Warrior handles & the speed it has for so little money. I think a lot of people over look this boat when looking for a micro boat, It dosnt have the name so to speek i think. I love them. Thanks Martin.

[Cyberdave]

Hi Martin,
You're right, my mate has a very expensive mono hull fast electric boat that isn't half as well behaved! I just fitted a 3600 KV motor (£10 from Giant Cod) as I'd knackered the bearings in the original 3000kv, man the thing absoloutely flies and howls like a Banshee! One problem though it sheared the drive shaft so I'm replacing it with a thicker one!

Dave

[martin]

I will say i did shear a couple of flexes at one time but not for a long time though, You must keep enough clearance between the dog & strut as the load is taken by the motor bearings & not the dog running agaist the strut. To close a fit to the strut & when the shaft winds up & shortens bang & its gone. Heres mine running a £8 3800kv on outrunner from Hong Kong & £13 60amp esc from Giantcod & 3s lipo. Martin.

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

http://www.youtube.com/watch?v=-zYKfxjOJ1A

http://www.youtube.com/watch?v=sE0op4iyGnc

http://www.youtube.com/watch?v=pVkjnH2xgBk

http://www.youtube.com/watch?v=UmpAKdtZ7MA

http://www.youtube.com/watch?v=J8pM1E4ECkg

[Cyberdave]

Very nice!
I have the same GC ESC that you are running.
When I sheared the flexi it went at the motor end and the whole shaft, dog and prop went awol!
What prop are you running? I'm still running the standard plastic jobby.

[martin]

Yes thats where they tend to break at the motor end, The grub screws bite into the flex & where you keep taking the shaft out for greasing constantly undoing & doing up the screws it chews the flex + because it a flex you cant tighten down positively like with a solid shaft. I started soldering that end of the flex around 20mm long & although it improved it a bit it was not the answer. In the end i make a solid steel end the same as the other end where the prop goes on but only around 20mm long & solder it onto the flex. This piece then goes into the brass coupling. I also put a flat on this piece so one of the grub screws tightens on the flat the other one just tightens onto the round part. I have to shorten the flex so i can add this solid piece to keep the length right,I also open up the coupling hole from 2.3mm to 2.9mm as this piece i make is 2.9mm so it will slide in the strut ball races that are 3mm id. Props you have to be carefull with because going up in size & from plastic to metal you have a lot more amp draw but its faster. Im prepared to accept that risk & know that. Prop is a metal Octura x435 sharpened & balanced.My boats had a very hard time running at these speeds. When they hid the water & lake bed it does a lot of damage hence a lot of battle scars. Martin.

[martin]

I had to add trim tabs as the speeds started to climb to stabalise the hull, Bottom of the hull is filled at the rear to take a hook out of the hull which is bad on a hull & affects the running charactoristics a lot. Its also 100% self righting as id be in the lake constanly retrieving other wise. Bottom of the hull has also been scrubed with 600grit wet & dry, Rudder shortened & thined down for less drag but this will reduce turning sharpness as im only interested in going as fast as i can in straight dashes but it still turns ok just not as sharp. Martin.