Aeromarine Thunderbolt 45" Sports Hydro

[drwayne]

New project, a long time in consideration
Collected all hardware and electrics.. finally here's the hull ...

The box made quite a stir at my PostOffice
coffin.JPG

Here are a pair of Castle 2028's placed for size compatibility. ZoomZoom !
testfitx2.JPG

[wayne middlemiss]

checkout youtube for some vids of the thunderbolt on 12s neu powered. they are impressive.

[oscarel]

2 2028's? WOW!

Sent from my SAMSUNG-SGH-I747 using Tapatalk 4

[drwayne]

In Australia Im limited to 12S1P per boat..which realistically feeds only one motor for oval.
The 2028 is a beast of a motor, easily 3x what I ran before in similar twin prop hull .. I started looking towards counter rotating shafts from one motor....my credit card primed and ready, when a friend located and sent me these pics.
My crayola sketchpad gearbox was then put away..

I think Im in love
v8-3.jpg

v8-1.jpg

v8-2.jpg

Sent contact to the supplier of the gearbox ... no reply yet to email ... and discovered they've a wonderful telephone answering machine !

All good, enthusiasm returned to idle during the interim

[Peter A]

In Australia Im limited to 12S1P per boat..which realistically feeds only one motor for oval.
The 2028 is a beast of a motor, easily 3x what I ran before in similar twin prop hull .. I started looking towards counter rotating shafts from one motor....my credit card primed and ready, when a friend located and sent me these pics.
My crayola sketchpad gearbox was then put away..

I think Im in love
[ATTACH=CONFIG]105990[/ATTACH]

[ATTACH=CONFIG]105991[/ATTACH]

[ATTACH=CONFIG]105992[/ATTACH]

Sent contact to the supplier of the gearbox ... no reply yet to email ... and discovered they've a wonderful telephone answering machine !

All good, enthusiasm returned to idle during the interim

I want a little V8! Too cool!

[JLShip]

New project, a long time in consideration
Collected all hardware and electrics.. finally here's the hull ...

The box made quite a stir at my PostOffice
[ATTACH=CONFIG]105932[/ATTACH]

Here are a pair of Castle 2028's placed for size compatibility. ZoomZoom !
[ATTACH=CONFIG]105933[/ATTACH]

Like it!, any trouble keeping motors cool, with both of them so close to each other?

Had two ,both ran Gas , both ran great, great hull, Good luck...

[drwayne]

Just to reiterate..
I aim a single motor driving 2 counter rotating shafts.
W

[JLShip]

Just to reiterate..
I aim a single motor driving 2 counter rotating shafts.
W

Understand.....Two would be nice, what is the advantages running twin screw on a Hydro platform....?

[Brushless55]

Subscribed!

[drwayne]

Understand.....Two would be nice, what is the advantages running twin screw on a Hydro platform....?

Hmmm the simple answer → Fun !

the long answer → ( see above )

counter rotating...
→ better launch
→ better handling
→ no prop walk
→ more bite from corners
→ equal ability to turn R or L ( when turn fin removed ) !!
→ lots more drive.

[Fluid]

Counter-rotation disadvantage - poor turning on the race course. Virtually all twin nitro riggers run non-CR props. The twin fastest drivers in the US I've spoken to at races say that the boats do not turn well enough with non-CR setups. They were all adamant about it. But it is easy enough to try with FE and with the big hydro it may work fine.





.

[iridebikes247]

that box looks like a coffin wayne lol. looking forward to this one

[drwayne]

Like it!, any trouble keeping motors cool, with both of them so close to each other?

Had two ,both ran Gas , both ran great, great hull, Good luck...

Hi
Motors have OSE-HRC watercooling jackets fitted.
Standard 4mm fittings removed, jacket redrilled/tapped for 6mm.. lots more flow.
Id wager these run cooler than as 1/5 air cooled car motors.

[Brushless1]

Hey, Nice set up. One comment on the CR props - I switched from two RH drives on my 1:1 boat and repowered with CR Alpha drives. I have had a couple issues that I cant seem to resolve - 1) cavitation above 60MPH. Never had this with the two RH drives. 2) Handling; boat does not seem to track as well at low speeds, wanders and hunts much more than with the RH drives. Havent really noticed much of a positive difference after the switch plus was a $3,500 addition. I think that for aircraft such as the P-38, it was a positive addition because of the huge power/Torque of the 1600HP supercharged engines and the CR tended to offset this. But this doesnt make sense to me either as the Right hand rule would suggest spin would result from this?. I have yet to try it on my 1/8 scale thunderbolt (expresscraft). Maybe the scale torque of these Castle motors, like the p-38 will make it a worthwhile endeavor.

I am Looking forward to your results, please fill us in with the benefits/disadvantages of the scale down implementation.

[wayne middlemiss]

wayne in response to the above post & being an bloody aussie you will know about sharkcats right???.
well yes I have a 20 ft boat it has mounted on the back 2x 115 hp johnsons props are non cr runs wot 60 mph + wot no issues and its a pure offshore bluewater fishing machine. and does not exhibit bad habits period.