Modded Impulse very first run!

[Brushless55]

Sweet!
this one looks like a Spartan killer

[Rumdog]

The Spartan commited suicide..

[Brushless55]

[ron1950]

anyone tryed 2 4 cell in par? might not need the lead with the added weight

[v-spec]

Ok I got another run on video, still using the 42x55 prop but I messed with the cg some more and it got unstable. Mine seems to handle really well with the cg really far forward but I moved it back 3/4 inch and this was the result. I'm going to run it on 4s2p once I get a new flex collet for my .187 flex cable because I snapped the stock one today. That should give me the weight I'm looking for and I may be able to prop up and pickup some more speed. Anyways here it is.

[tlandauer]

Wow! That is fantastic, doesn't look loose to video viewers though, I will be real happy if anything I have that would run close to that.

[Brushless55]

I like it man, lookd good!

[v-spec]

Ok so I think I figured why the boat was getting unstable during the turns and crossing it's own wake and why it wasn't doing that the day before yesterday. I had a cold solder joint on one of the motor to esc wires and it was just bouncing around in the castle 6.5mm bullet.

You can hear the boat seem like it's cutting in and out while turning and I had thought that mostly to be the boat getting unsettled. I watched my videos this morning and thought about the bullets since I changed solders midway through because I ran out and sure enough the middle motor to esc wire pulled right out when I pulled on it and was being held in by the heat shrink.

Here is the video that got me thinking. (i puffed old faithful during this run too RIP Turnigy 35c 4s.

[tlandauer]

Goodwork!

[arp1500]

awsome

[v-spec]

Ok, looks like I'm back in business! My buddy Jim Marcum on the forum here machined my Jeff Wolt collet to 3/16 so I could run my .187 flex shaft that's replacing my snapped stock one and also silver soldered all my connections to be safe. (thanks Jim!) The big octura 5mm to 3/16th collets won't fit because of the way the motor mount is so I have to use a setscrew type similar to the stock proboat one.

I've got to find a place that has some 5.5 bullets in stock today so I can solder up some parallel connectors to run 4s2p, I've bought them all from my 3 local LHS's... Anyways after I get that done and shorten my .187 flex cable all I've gotta do is wait for the 200 sailboats to clear our pond and I'll be ready to break something else!

[mcdragon2]

looks good. I would say its over 50 as I have seen one run 46 ish and yours looks way faster. set up 2 markers a known distance apart and you can time it from the video as long as the camera stays still as the boat goes pat both

[HELI-MD]

I'm new to fe boating spent lots of time with rc cars and trucks but this is my first boat. Its an awesome boat stock and had a blast with it. I just wanted more speed out of it so i put in a Leopard 4082 2200 kv with a 42x55 prop the thing screams and is a blast but I'm tweaking it and trying to get it to run right in the water. So im just
wondering where your C of G is at on yours and whats the easiest way to figure out where the C of G is. Thanks

[Stephavee]

I smoked my stock esc on mine just pluging in the batteries. at first i thought i hooked them up wrong but no...everthing was right! so i put the seaking 180 and leopard 3674 1700kv motor and esc combo from my BJ26 in my impulse so i could still run it. I love that i can still do 35mph on 4s and still run 6s if the water is flat. the last time i ran it i snaped the flexcable at the solder joint and lost a S/B m445 prop! this bumed me out and ment i was done for the weekend. what can i do to make sure this dont happen again? or was this just a fluke thing?

[tlandauer]

How long have you been using the coupler? May be a contributing factor, the set screws "bite" into the cable, collets "grab" the cable evenly.