45" Everingham Build

[Aaron Johnson]

Last week we managed to get our hands on a couple of 45 inch Everingham type hulls, typically built for gas setups... However we couldn't help but accept the challenge on building one electric.

We ordered the hulls a little bit lighter than the normal gas setup and reinforced with carbon fibre.

All in all for a hand built hull made here in Australia we are pretty happy!

Our hardware won't arrive until later in the week, but should be here just in time for the weekend.

So far we have;

• Installed hatch locks
• Created a mounting tongue at the front of the hatch
• Designed and printed digital printed vinyl for the window decal
• Polished the gel coat for a mirror finish.

Parts on there way;

• 58mm motor mount
• 165mm (6 inch stand off) rudder
• 1/4 one peice drive shaft setup
• 80mm x 50 trim tabs
• 93mm x 36mm turn fins
• Water inlet and outlet bulk heads

What we are considering for electrics:

• 12s 60C 5000mah Lipo's
• 300 amp swordfish ESC
• TP 58mm 600kv motor

[Aaron Johnson]

Cleaned up the hull, the gel coat was a little bit dull from the molding process.
Car polished and a little bit of elbow grease managed to do the job well.



As we were waiting for our hardware to arrive, I decided to create a vinyl window decal using my vinyl plotter.





Still waiting on the hardware, I got bored and started to design a livery for the boat. I went with the classic NYC cab/taxi look.



Hatch locks installed and working well.



Used a piece of 1/2" alloy to bend a support tongue in place.

[Aaron Johnson]

Yep still waiting on hardware thanks to our crappy postal service. I decided to build the battery tray.



I was pretty happy with the end result, it bolts into the rails and has just enough room for the velcro straps to wrap around for the batteries.



Before installation into the hull, I will lay some foam on the bottom of the tray edges to provide some cushion and to protect the carbon fibre.



Anti-slip matting over the top to keep the batteries still!



A size comparison from our Genesis 900 and TFL Pursuit.



The hardware has arrived thanks to Rc Boat Bitz here in Australia!

[Aaron Johnson]

Drilling the stuffing tube hole center and maybe 50-70mm up from the keel.



Out of interest, just checking the alignment of the stuff tube.



Installing the adjustable stinger into place.



Just about level and good enough for me!



Used an 11/32 drill bit to get a nice tight fit.



Stinger installed and length adjusted to about 120mm from the transom.

[Aaron Johnson]

[Aaron Johnson]

[Roy Van De Sande]

Nice build! Those TP5850 are real beast motors! I have one in a 45' mono. Never hot no matter how hard you push it!
Keep one the good work!

[Dirk Jan]

Nice hull! I like the wide and shallow design. The setup looks real good too, I'm curious how it performs.

[Aaron Johnson]

Your not wrong it is a beast of a motor and the hull is a lovely design. It's a very scale feeling boat to smash around the water. A lot more fun than the pursuits and genesis that we have built in the past.

Roy - What props have you run in your mono with this motor?

Here is a little video of the White ones maiden run, it's been built identical to the yellow one pictured in this build thread. They were both built at the same time, using the same parts. It's my brother in laws.

http://youtu.be/M6LZmGKW-Nw

[Spartanator]

That is very nice! I like the RCBB trim tabs in black. That stinger looks massive!

[Roy Van De Sande]

Roy - What props have you run in your mono with this motor?

Hello Aaron,

I have a TP5850 600kv. I use 12S 10.000mAh 45C and a flier 400A 16s esc, yesterday I ran a octura x465 for 5min full throttle. Voltage of the lipo's around 3.80V/cell afterwards. Speeds around 60-65mph. All temperatures beneath 25°C, so around 80 ° Fahrenheit. I will use a x467 next for some extra speed :) For your 750kv motor on 12s I would suggest a x457 to start with. I am pretty sure you will be able to spin a x465 as well with your setup but that would be fast.....

Here a little video of my 45' mono with my old lehner 3080/9. The TP5850 600 kv is 1-2mph slower but I get a full minut of runtime. Easy choice for me.

https://www.youtube.com/watch?v=neGb4H0r4SE

[Aaron Johnson]

We ended up installing the 600Kv TP5850 in the hulls, I think the 600kv was a much better choice. Combined with the 300amp Swordfish Pro+ it appears to be bullet proof.

Our first test run we went out with a 63mm 3 blade prop, it was a safe starting point. After pulling the data logs, the max current draw was 157 amps and the temps very luke warm at best. In terms of speed we were just under the 100kmph mark.

On the most recent run we went out with a 65mm 3 blade prop and a few extra fine tunes to the hull setup. Pulling the data logs, again max current was only 167amp and the temps around 41 degrees. It appears we may have a little bit of head room to play with in my eyes! Speed was beyond 100kmph.

Here is a link to one of the hulls running the 63mm 3 blade, this boat wasn't setup great for cornering. We have since made major adjustments and they are both doing beautiful figure 8 turns and holding strong throttle in and around the corner. No more prop walk / torque roll.

https://www.facebook.com/rcboatbuilder (Video on facebook page)

[Aaron Johnson]

For anyone building one of these boats here are my setup tips, obviously relative to our weight and CG point which is probably around the 35-40% mark fully loaded.

- Stinger length 11cm
- Tabs and stinger 1-2 degrees up.
- Servo 15kg +

[Roy Van De Sande]

Hello Aaron,

The TP5850 600kv is my favoured motor for pushing some big mono's. The 750kv is the same motor ofcourse but running it on 12s is a hot setup!
I have ran my 45' mono with the TP5850 600kv on 14s this weekend with great succes.
If you would like to compare it with your boat, here are the links: https://www.youtube.com/watch?v=Y9I0uZpfNEw

https://www.youtube.com/watch?v=N89FZwFtUNI

Motor 31°C or 88°F , esc 17°C (!) or 63°F. I used a octura x462. Next weekend I will try something bigger :) Max speeds around 105 km/h 65-66mph.
CG is around 32%.
I am looking forward to your future videos!

[Aaron Johnson]

Here is a completed video, best run so fair is a 111kmph which is 68mph

https://www.youtube.com/watch?v=zL3ArEGEUgY