Pond Skipper

If you dont want to fuss with a build there is this option nearly there just retrofit time.
I must say this is the best made micro off the shelf type for the buck, great fit and finish with the right hardware just needs something better for motor like an engine or a brushless motor.As shown with the TD .010 weighs in at 90.3g less RX and a 2S lipo for the servo hatch is 8.6g. The brass coupler in this case makes a nice flywheel just needs a little groove for belt start.

Pond Skipper

The throttled .020 should make a fast 9in micro nitro. I would imagine you could at least run in the pool up to 70% throttle. The hatch almost sets over the motor you would have to cut down the center post of the glow plug halfway by the looks of it. There is room to lay the engine on the side but you will need to have the glow plug wired up for 1.5v access tap. The TD .010 fits with room to spare only needs a lil exhaust strap for throttle. One last thing this is new to me the thin stickers on this boat has a clear coat of laquer so nothing to peel off all smooth no edges and I imagine fuel proof.

Pond Skipper

Going to go with a cracker box as it wider more stable and to power test the .020 with the 20mm prop, here is some pics

Pond Skipper

Starting to reinstall the gear, I will use a 5in dia O ring for a starter belt it tucks back into the hull once the engines running.

Pond Skipper

I have been posting pics in the last two posts but this site is not allowing them to show so after many attempts I will have to go to a better working site at RCGroups - Micro boats forum under the heading Micro Nitro Boats.

coriolan

So we will watch you there "Amp Abuser"
http://www.rcgroups.com/forums/showt...0#post26811911

WestCoastD

Very cool idea having a dedicated 1/2-A RC Boat thread. Many of us had our first rc boat experience building Dumas 1/2-A size kits. My first model boat was a Dumas Lil' Swamp Buggy. I free-ran it at our local casting pond. Many fond memories starting the Cox .049 prop engine, setting it in the water, then running around to the other side of the bank to catch it before it hit.

jetpack

My Feedback: (1)

I feel bad starting a thread and then drop the ball but I've been struggling with my health the last couple of years. Very sad about not being able to play with you guys and disappointed I haven't been able to progress with any of my building. Frustration to the max. Lots I want to accomplish yet! I have everything in the house to start making boats and motors but just can't swing it...

amrharrymac

My Feedback: (2)

No worries Jetpack..
I hope you are doing better now. It gave a few of us a chance to catch up..
I got rolling and found me a project hull and parts but I too have been dealing with school, a new business and back problems...
All the Best..

Ron Olson

My Feedback: (1)

Dave, when I make it down to Hobart in the fall I've got a lot of .049's and something else to give you (you'll like it!). You might have to remind me to toss the stuff in the trailer though. I don't have and use for these things anymore and give it all to someone who would use it.

jetpack

My Feedback: (1)

Here's what I'm thinking. Adds up to about 60 bucks but its 2.7ghz and strong enough for a 1/2A rudder and throttle. Looks like the same unit thats in my micro glider. No seperate servos, no case...small. I'm wondering what lipo could power it. It sure would make for a light package, which these need. I remember playing with weights (lead sinkers) inside my Atlas hydro to see how much weight affected its speed and ride. It changed with the smallest slip sinker I had...

coriolan

These linear servos are not too fond of high vibrations environment! And $60 sound very overpriced

jetpack

My Feedback: (1)

Hydro Junkie

JP, you do know that the full sized boat you posted pictures of is a recreation and not the original that was destroyed back in the 50s

jetpack

My Feedback: (1)

Yes, not critical here. It's just a toy boat. There's no color pictures of the original to go by. I posted them for color matching and some detail reference. Is there a reason you're pointing that out?

R.J. West

Here ya go HJ. a couple of great reference pics for you...

Hydro Junkie

I've heard people ask about the boat at the HARM and, when told the boat was a replica, those that asked got all bent out of shape. Just wanted to make sure you knew what the boat actually is

R.J. West

I honestly dont believe that Dumas or anyone else on this thread intended to build a 18" scale replica of an actual real hydroplane, this is a hobby, a hobby that some of us actually participate in. Meaning that we actually build and run our models when they are finished and share with others of similar interest's... Unlike some certain people .....cough, cough...(hydro junkie) who has posted 4375 times on this forum and in those said 4375 posts has yet to even show a completed boat that he/she has built himself/herself.

Pond Skipper

Heres a treat I built it in the winter it has ran a few times will be posting a running vid with a head mounted cam soon enjoy.
Cox TD .020 Micro 9.5in Crackerbox with throttle sleeve.
Just set up idle and top end shut off by closing the exhaust ports with a throttle sleeve. Total weight less fuel 194.2g / 6.94oz
Is idling at 16k ish and top end 25.4k rpm. Water cooling coil, 2mm surface drive line with 20mm prop.
Flywheel is custom made in england had 3 made.


http://www.youtube.com/watch?v=gSqH9EZGKKc

Pond Skipper

Pic for size refrence:

jetpack

My Feedback: (1)

That's a sweetie! Good job on the driveline. Can't wait to see it spray some water, Skipper. I bet it will be a little handful. Thanks for posting the video. Did you work from just a sketch or less on the hull?

Pond Skipper

This one is stable do to the front skeg deep rudder, surface drive and I added a right turn fin on the transom the fins get locked in by the rudder and the whole lot is pushed on by the prop. So it rides flat n fast like on a railroad track. I have not caught an edge yet up to moderate micro size water conditions. A small body of water upwind side of the pond along the shore first 15ft the water is calm and useful. I use a fishing pole is enough with throttle you can bring it in before the fuel gives out.

robot797

after a long time i found my way back here

how is everybody?

robot797

i have my boat 5 years now and still i have not sailed it

what is wrong with me

coriolan

Only you can tell