One Mtr Patrol Torpedo Boat - EeZeBilt

Started by ashok baijal, August 12, 2015, 07:38:10 PM

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ashok baijal

Started a new project for building a PT Boat based on the EeZeBilt plan scaled up to 200%. Primary material being used if 3mm PVC Foam Board (Sunboard).

Cut out the deck pieces today.

As usual this will be a slow build.

gaurang.1972


ashok baijal

@gaurag1972
Yes. Attached the bulkheads but further progress held up for want of a stuffing tube and power system which needs to be installed before moving ahead. Unable to identy suitable parts for this boat on hobbyking as not much experienced with boats. Can anybody help me in selecting one viz motor.stuffing tube drive shaft, couplers drivedog and prop.

K K Iyer

A lesson in craftsmanship!
I wonder why some of the youngsters build really rough looking models, when a schoolboy like Param can build a fine model like his F18.
For more examples of quality work, see ashok baijal's last year's sweepstakes entries.

ashok baijal


sanjayrai55

Looking real good. You call this slow?  :giggle: :giggle:

ashok baijal

@Sanjayji
Both my boat projects are stuck for the respective drive chain.

ashok baijal

Got my stuffing tube, teflon liner, flexi shaft, drive dog and prop from Rcboatbitz, Australia after a long wait. However forgot to order the motor mount. :banghead: Still learning boat building. Stuff at Rcboatbitz is good quality but at pretty high rates.

Now another wait as this time I will try to get the motor mount and rudder from HK. Still shows most boat parts on backorder. >:(

Yes! Its the "Princess" just arrived from HK. Took advantage of the free shiping flash sale at HK. Further build and run pictures of the Princess will come from GForce1980

K K Iyer

@ashok baijal,
You bought a 2bhp boat costing 15k or more?
Wow!
Where will you run it?
(BTW, what is Gforce1980?)

ashok baijal

@Iyer
There are many lakes in Bangalore. The only problem is that they are being encroached and getting polluted day by day. There is a lake near my flat but the road leading to it is encroached upon. The only way is to walk as people have built structures on the path leading to it. You would have read that a lake in Bangalore caught fire from the methane coming out of its polluted waters.
Gforce1980 is a forum member who I want to get interested in RC. He is fascinated by speed. So this is a gift to him.

ashok baijal

Some progress

ashok baijal

Made machine guns using 3mm cycle spokes, balsa and light ply. Gun pits made of two plastic glasses cut to size. Picture shows dry fit of the machine guns. Final installation only after painting.

sanjayrai55

Very nice  :thumbsup:  Was wondering yesterday what the plastic cups were for  ;D

ashok baijal

Made the 20mm Oerlikon guns using three pieces, starting with s dowel piece and two progressively thinner carbon fibre tubes. The guns were mounted on a gun mount made out from a 1in aluminum U shaped channel cut to shape. The gun mount was attahed to a gun pedestal made out of an empty cyno bottle cap. The shoulder mounts were made out of 3mm steel wire bent and cut into two semi circles. The gun shield was made of 2mm ply.

ashok baijal

The gun will be fixed in the aft section of the deck after painting. Pictures of the dry fit.

K K Iyer

In the next few days, we may even get to see torpedos, depth charges and onboard helicopter gunship!

ashok baijal

The stern gun made out of a dowel and piece of plastic square tube. Pedestal made out of laminated foamboard.

ashok baijal

#17
Modified bow gun pedestal. Used a "Goodnight" liquid cap. Prepared amo crates by partially cutting some rectangular plastic bottles and placing them near the two guns.Made the smoke generator with an empty liquid soap bottle and some scrap plastic pieces.

ashok baijal

Added support rings to the machinegun turrets. Made from two cycle spokes.

ashok baijal

Partially made a torpedo but realised that the boat should have torpedo launch tubes and not bare torpedoes! !!

K K Iyer

No, no.
Tubes would hide the torpedos, defeating the entire purpose (the tubes could even be empty!)
Better to have torpedos that can be just rolled overboard like depth charges.
Can be stored loose, so that to release the right one, just turn hard left...
Simple desi tech is best.
Remember that even a gnat could kill a tiger toothed sabre  ;D

ashok baijal

@Iyer. Yes, I agree that having torpedo tubes would be quite drab but the original Pt109 had tubes! The eezebilt plan that I am using also has torpedoes and not tubes. So will wait for few days for comments on the forum and then decideTUBES or TORPEDOES

ashok baijal

Made a dinghy. Cut out two oval shaped pieces of 6mm biofoam and stuck them together. Rounded the oval piece to the shape of an inflatable.Attached a piece of foamboard to serve as the base of the boat

ashok baijal

No response regarding torpedo or torpedo tube! Completed one torpedo and drop rack today.
Torpedo made out of five 6mm laminated pieces of biofoam and sanded to a round shape. Placed a wire runnig lenthwise while laminating. Tried turning it on an improvised lathe but found sanding by hand easier.  The front end of the wire covered with a small piece of pvc extracted out of an electric wire to serve as the detonator. The two counter rotating props were cut out of a plastic book cover and spaced on the wire emanating out of the aft end of the torpedo. Spaced the two props using two pieces of wire outer pvc covering. The fins were made of 2mm pvc foamboard.
The rack was cut out of 3mm foamboard and drop handle made out of a piece of cycle spoke.

The radar mast was made using a dowel and radar dome was made using the plastic spoon from a detergent bag. The hydraulic lift tubes were made by bending a cycle spke to a V Shape and insertieng two pieces of tubing to look like the hydraulic cylinders.

K K Iyer

Maybe there's a GPS under the radar dome...