Artist lake, middle island NY

[zooma]

My biggest available ESC is 120 amp rated. It's a Turnigy Aquastar like Bigford's. It looks like a re-branded Swordfish 120 with two extra caps and only one cooling tube. It even works with my Swordfish programmer. So, with only 120 amp rating, I am going to start with an M545 prop instead of 645. Battery location is now an issue. I think I'm going to lay it next to the motor and just be off balance to the port side. May get to the lake tomorrow.

Glad to see you using Artist Lake. I used to watch the nitro boats there 25 years ago.

Total failure. Boat went 100 feet and motor cooked. Have no idea why it would not work like yours.

[Newboater]

Total failure. Boat went 100 feet and motor cooked. Have no idea why it would not work like yours.

What motor were you running that cooked? Was there a bearing issue or any noise prior to the seizing?

[zooma]

What motor were you running that cooked? Was there a bearing issue or any noise prior to the seizing?

Leopard 4074 1650kv, just like yours. 545 prop, not 645 like yours. I oiled the bearings before installation. No warning signs. Heck, it only ran for about 15 seconds, including moving it away from the shore. Motor is kinda small for this size hull. Maybe you are just lucky.

[Newboater]

The hull is about 31" I don't think the motor was too small as you were running a 3674 2075kv prior. Sounds unrelated to motor size especially if it cooked it that fast. My motor and esc temps were both under 100*F
After running over 5 minutes. Maybe one of the copper windings came loose causing a short.

[zooma]

The hull is about 31" I don't think the motor was too small as you were running a 3674 2075kv prior. Sounds unrelated to motor size especially if it cooked it that fast. My motor and esc temps were both under 100*F
After running over 5 minutes. Maybe one of the copper windings came loose causing a short.

I am returning it to OSE for examination. Back at Grumman Aerospace Corp, we called that FMEA (Failure Mode and Effects Analysis). Hey, at least no astronauts were harmed in this incident.

[Bigford]

OSE saves the day!!! Seaking 180,program box and prop sleeves showed up today. Now only I'd the new batteries would get here.. I hate fedex

[Bigford]

Ok back to the lake today.
Genesis got a new
Seaking 180 esc 2 3s 5000 hrb lipos and a two
Blade 42mm prop. Temp were 135°f on the esc
120° on motor and 117° on the batteries.
Timing was set to 0° I think I didn't set the lvc properly at I was losing speed quick

[Newboater]

Impulse 31 at the lake with Bigford and Linewbie for some prop testing.
Run 1 CNC 648 Detounged weight on the prop only 3.5g Temp ESC 101 motor 98 after the pass 55.1mph Video:https://youtu.be/K9_mu5rYYwg

Run 2 Dasboata 1815-17 weight on prop 11.2g. Temp Esc 101 motor 98 after pass 56.2mph video:https://youtu.be/0jDRmSM0tNY

Running the boat for about 5 minutes non stop with the 1914 ESC temps were 125 motor 134.

[Linewbie]

Mine is sitting on the bench stripped down to bare hull. Motor, esc, servo and receiver stripped from subframe, for lack of the proper term. Ive got projects lined up for weekend but will have it back together and ready for next sat. Got a good baseline earlier for cog and strut adjustment and now need to slide the batteries aft to find sweet spot. Thanks guys.

[Bigford]

I bet it won't be so squirrelly now

[Linewbie]

Had some time earlier today so I started getting it back together. Ill be good to go by Sat.

[Newboater]

Well next Saturday we will get it dialed in

[rayray9]

One of these days I tell 'ya! been running south shore (Baldwin). I live probably 20 mins from Artist lake although.

[Linewbie]

Im heading out now.

[Bigford]

I finally got the 440/3 after 3 weeks. I was getting the
Boat ready for Saturday. While messing with the flex shaft
And collet I popped the stuffing tube loose
From the hull. It looks like they wrapped it up In glass and
Resined it to the hull. What do I need to fix the problem?