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[AlanT]

I'm just about to start work on R/c ing the Tamiya Enterprise and just wonder if any one has any tips or encountered any particular problems...

I have read elsewhere that the shallow draft is a problem and can lead to capsize...I have seen weights added on spurs but this seems very unsightly so I thought of adding two small dia, (25mm?) tubes filled with lead shot and blended into the existing hull base...not prototypical but could look acceptable. Any experience with weight placement would be very useful.

I intend to use two props, (leaving the other two as fixed dummies), with some of Steve Tranters 2mm propshafts...also using a single rudder for simplicity...Any suggestions for motors?...I will probably use just one esc...probably a Viper or similar...Obviously speed is not important,just a realistic cruising speed.

If I can I would like to use a lead acid cell..(Due to weight).

Alan

[xilsoe]

I converted the TAMIYA New Jersey. Here is my log: http://iloapp.moller-ilsoe.dk/blog/heliblog?Home&category=10.
One piece of experience from New Jersey is that if only two propellers are running, then it should be the ones in front of the rudders. That will give the best steering performance.

I have also read some threads about the Enterprise and heard that it is top heavy. If you can find a way to reduce the weight of the flight deck that could probably be a good help.

Jørgen

[cos918]

Hi Alan
Have a read of th one I built. Feel free to ask any questions

john

http://www.rcgroups.com/forums/showthread.php?t=936346

[AlanT]

The Tamiya Enterprise kit is now finished, fully r/c'd and has now completed it's maiden voyage.

Conditions at the pond were not ideal for these difficult craft , being a gusty wind but I learnt enough to know the stability devices I built seem to work well , but I need to transfer some of the weight from inside the hull to the devices...Fine tuning really.
The twin MPA 300 series motors work well providing realistic speeds and startup from the 6 volt gell cell fitted. All R/c equipmemnt worked well the 15Amp Viper Esc coping well with the twin motors. (The two outside prop units are dummies.)
 Turning the beast was best undertaken between gusts if my nerves were not to be shattered!...but I must admit did prove great fun. A single brass rudder was used instead of the four original rudders the real ship used.
The hull interior was dry as a bone when sailing was finished which was very satisfying....
A few piccies :-





The black underwater object to the right of the bow is not a Russian Submarine, but one of the ponds many resident Koi Carp....The accompanying Revell Corvette will take care of any intrusion with a few carefully placed depth charges!!.



The final photo shows the stability device used....All available from your local B&Q....(Retail builders merchant chain for those not in B&Q countries ok

4 # pipe fixing brackets.
1 section of 20mm plastic waste pipe cut into 2 24" sections.
4 custom plasticard endcaps
Significant quantity of fishing lead pellets.



Regards

Alan
PS I will try to take a video if I can work out firstly how to take it and secondly how to put it on here!...

[Tug-Kenny RIP]

You won't be able to put a live video on here, so the recommended thing is to post it on YouTube and let us know the reference click.

Cheers

 

[Armo61]

Excellent work there Alan and she really looks well in the Water does'nt she. I see what you meant re ballast for your Big E but seems like you have it beaten and seem happy with your work.
Hope Nimitz comes out as well as this build.
Good stuff.

[Stormbringer]

looks great on the water there 

[Armo61]

Was working on Nimitz Alan and just thought wish I was there with yah, what a great sight in the water, the Big E and the Nimitz together i bet that would turn some heads.
Cheers

[AlanT]

Yes would be good to see them both together...Not that many warships at my Club...Started work on my next project.....(No not the Lindberg Blue Devil that is 2nd in line Project), but an all wood Freelance Norfolk Broads 1930's ish Cruiser, now I know there are several of these boats in existence in Aus because I saw them in Freemantle a few years ago when I visited the area.....I bought the hull on Ebay for£10 in a very sorry state.....I love working in wood after all this plastic....Will start a new thread when I've got the basic shape right.

Alan

[Armo61]

Sounds great to me Alan. I have my next project now coming and like you No its not the Blue Devil I will put that away for a while, but I have decided to do the new Tamiya Missouri at 77cm  It looks a really great model for me to keep practicing on and many Upgrades to make it a lovely Model.
Should be able to remote her also. But that will be a long time coming as Nimitz is happening plus the Escorts Ingersoll and Tcondera.
Look forward with interest in your next project posting.
Charles

[george]

 Hello AlanT

 Thanks for posting your build of the Tamiya Enterprise. I have the same one at home in the pile. Could you give me a rough idea of the weight in each ballast tube you have used for stability?

 Thanks again for the pictures.

 George

[george]

  Hello

 I was referred to you for this. What do you think about using converted servos as motors for this with their speed control boards, they are small and light weight. Could they handle the model`s weight with the extra ballast included?

 Like to know for my future build.

 Thanks
 George

[AlanT]

Hi George..

First my apologise as I seemed to have missed your previous post regarding weight on the stability device.....I'll try and sort that out for you today.

Regarding the servo motors I guess it depends on if you are going to use 4 or 2 motors. 4 would probably be adequate to drive the boat at a realistic speed, you might struggle with just two. The  two 300 motors in my boat work well but I wouldn't use anything smaller. I am also using scale brass props, (5 bladed 20mm dia.) which although they look great and match the 2 dummy ones as supplied with the kit, are not the most effecient design I could have used. Also I am using 6 volt battery and not 7.2 volt that the motors could use. This set up suits me as I only want the boat for sailing in calm or light wind days. 
What I have noticed with my setup, which I think is most realistic, is the way the boat gets under way. With the weight and possibly the obstruction to flow the stability device causes....when you apply throttle the motors churn the water for a second or so before the boat moves off, it looks really good but perhaps shows the motors are on their limit during this phase of operations.

Regards
Alan

[AlanT]

Hi George....

All up weight of my enterprise is 3.156 Kilos. Weight in the stabilisation devices is approx 0.5 kilos per side. As I said earlier in the thread I think I currently have too much weight inside the boat and I will be experimenting to remove some of this weight and transfering it to the pods....As a rough guess I am aiming for 750 grms per side in the pods...

Alan