1/6th Scale Winston Lobster

[TomGracey]

1 of my winter projects is a ML Boat works  1/6 scale Winston Lobster Tail running a CMB 27 Alpha 27cc  Rear Exhaust Gas engine 



I was lucky on one front in that I found out that  Phil Thomas had a plug for the 1/6 cowling, that alone saved countless  hr's of work.

Knocked of my shoes when it arrived only took Phil to weeks to get it to me   LMAO        TNX Phil 



This a big ass boat 57.5"oal long, beam is  27.5 at the sponsons 



Progress is slow lots of work had it make a rough plug for a belly ban to clear the fly wheel.

Most the bottom skins and rear sponsons are done.  Starting  scaling up the front canard and wings is the next





Then out to my machine shop to design and make an aluminum engine mount 

 

[nickhartdegen]

That's really nice...she should run upfront !! I'm building a scale in the very near future .

Sent from my SM-G892A using Tapatalk

 

[TomGracey]

A couple hr's in the machine shop and the engine mounts are almost done, going to add some lightning holes later this close enough for mocking of the stuffing box tube & strut installation

 

[brad nichols]

Looking good!

Brad

 

[the german]

Nice work Tom !
Please keep us up to date and thank you for sharing!

Alex

 

[SayMikey]

Just remember square drive only on those Alpha motors

 

[dave weagel]

gas scale W.E. lobster graphics set for sale here :

JRCBD.COM for sale forum

http://jrcbd.com/forum/showthread.php?19665-quot-Trimming-the-fleet-quot-sale-post-2

 

[Gilbert Pun]

Would be interesting to see how you fix the CMB 27 engine to the wooden boat, I have similar ML kit and engine combination under construction.

 

[TomGracey]

gas scale W.E. lobster graphics set for sale here :

JRCBD.COM for sale forum

http://jrcbd.com/forum/showthread.php?19665-quot-Trimming-the-fleet-quot-sale-post-2

View attachment 98254

TNX all ready have a set

 

[TomGracey]

Just remember square drive only on those Alpha motors

Yup know that TNX for the heads up tho. Because of the rotary valve intake  the do not want to thrust end load the crank bearings

 

[TomGracey]

Would be interesting to see how you fix the CMB 27 engine to the wooden boat, I have similar ML kit and engine combination under construction.

1/4 plywood panel  with 1/4- 20  T nuts epoxied to the sides

 

[Gilbert Pun]

1/4 plywood panel  with 1/4- 20  T nuts epoxied to the sides

View attachment 98264

Thanks, Tom.

 

[dave weagel]

beautiful build

 

[Roger Lee Hooks Sr]

Just remember square drive only on those Alpha motors

Why do you use square drive?

 

[Hydro Junkie]

A square drive doesn't get "clamped" in a collet like a round cable would.  It, therefore, floats in the collet.  This has the advantage of not putting any force against the crank which, in turn, would put pressure on the rear bearing and back plate.  Since there wouldn't be any axial pressure on the engine, it will give more RPM with less stress on the engine parts

 

[SayMikey]

Why do you use square drive?

The answer to that on this motor is a cmb Alpha does not take much bearing thrust, It will wipe out the engine. When you buy a new engine from Stu he warns you about it on these

 

[Roger Lee Hooks Sr]

The answer to that on this motor is a cmb Alpha does not take much bearing thrust, It will wipe out the engine. When you buy a new engine from Stu he warns you about it on these

The answer to that on this motor is a cmb Alpha does not take much bearing thrust, It will wipe out the engine. When you buy a new engine from Stu he warns you about it on these

Thanks, I was thinking able buying one until someone told me they were having problems with the cmb Alpha gas engine.

 

[TomGracey]

Thanks, I was thinking able buying one until someone told me they were having problems with the cmb Alpha gas engine.

its an easy fix run a square drive cable at the strut end with a thrust bearing between the strut and drive dog ,  and round cable drive at the engine no worries

 

[Stuart Barr]

Roger,

I would be happy to talk to you about the new CMB 27.  Call me at 317-462-9978.

Stu

 

[Gilbert Pun]

Roger,

I would be happy to talk to you about the new CMB 27.  Call me at 317-462-9978.

Stu

Stu,

I've got two of these gas engines from you, just about to put them into 1/6 scale ML boats, any special note  of using them from you would be appreciated  

Gilbert