Stretch Rigger

[sundog]

Converted a toy NQD Arrow Wind outrigger to hobby grade on the cheap about a year ago (my avatar) and finally got a chance to run it this weekend (can you say procrastonate?!). I had stretched it by moving the sponsons forward 2" to make room for a lipo and esc. Has a Hobbywing 3600kv jacketed motor, a 34mm plastic prop, Mini hardware and I used a 35A Seaking for the trial run.
It did OK (I didn't do too well!) Gets on plane right away and everything stayed cool after a several minute run. I'll need to raise the strut a bit and make a turn fin - I have to make w-i-d-e turns or 'Starsky and Hutch' turns right now. But it scooted (I don't have a gps) I estimate right around 40mph (actually that's a guesstimate). Here's a video: http://www.youtube.com/watch?v=JvoBTntLHqM. And another short vid here: http://www.youtube.com/watch?v=jWnF6unT8r8. It looked cool towards nightfall as the leds of the esc would shine thru the hull and flash as I changed throttle settings.

Anybody have this happen?: On the last run coming back to shore I let go of the throttle (abruptly?) and when it floated in I discovered the prop and nut were missing! (Lucky me she made it in). Did I cause that to happen or was it getting loose and it just happened to fall off then? I don't have the esc set for brake or anything, so I don't know whatth..

[FloatDaBoat]

Anybody have this happen?: On the last run coming back to shore I let go of the throttle (abruptly?) and when it floated in I discovered the prop and nut were missing! (Lucky me she made it in). Did I cause that to happen or was it getting loose and it just happened to fall off then? I don't have the esc set for brake or anything, so I don't know whatth..

It was probably loose to begin with. I use a small drop of Loctite penetrating thread locker on mine. It won't make changing props a struggle (It'll break free fairly easily), & you don't need to re-apply every time, as the threads will retain some of the Loctite for awhile.

[sundog]

Yes, I feel sure you are right. I don't see how the prop could turn the nut off with a drive dog holding it still. I'll use loctite the next time. I am grateful the boat made it to shore before I made that discovery! Thanks, Sdg.

[Rumdog]

Make sure to leave a gap between the drive dog and strut. About the thickness of your cable.

[sundog]

Rumdog, are you pulling my leg?I thought the drive dog transfers the forward motion to the strut, thus the boat. Otherwise, the force is tranferred to the motor (bearings). I have 3 phenolic washers and grease between the drive dog and strut. Why should there be a gap?

[j.m.]

The cable shortens in length as it spins.

[FloatDaBoat]

Yes, I feel sure you are right. I don't see how the prop could turn the nut off with a drive dog holding it still. I'll use loctite the next time. I am grateful the boat made it to shore before I made that discovery! Thanks, Sdg.

I checked what I have, & it’s actually Permatex Green. Absolutely don’t use the Permanent type, as it requires a temperature of 500 degrees Fahrenheit to break the bond. Just be sure to read & follow the application/usage directions.

[Brushless55]

very cool Sundog!
I would like to do one of these little riggers with a T-Rex 450 motor

[sundog]

I was thinking the same thing! I found this outrunner http://www.hobbycity.com/hobbycity/s...28450_class%29 that has an integrated fan that might keep it cool enough. And the price is right too.

[Brushless55]

great find, and the reviews are great on that motor!