RC India
Welcome Guest, please login or register.
 
Pages: [1]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: January 12, 2015, 06:03:05 AM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013




We have a new boat plan out - an Elco 80ft PT Boat.

Free download from here: http://eezebilt.co.vu/PTBoat.html

Happy building!

DG
Logged
 

Read
« Reply #1 on: January 12, 2015, 12:01:09 PM »
VC
Boat Lover
Forum Hero

*****

Reputation Power: 64 
VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!VC is a rising star!
Offline Offline

City: Guwahati
State: Assam
RC Skills: Beginner
Posts: 5598
Join Date: Nov, 2009

L'enfant Terrible du RCIndia



 Bow I mean like WOW!!!  Hats Off
Logged

Growing old is mandatory, growing up is optional!
 

Read
« Reply #2 on: January 13, 2015, 02:29:28 AM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013



I know how you like to add accessories to your boats - this one offers almost limitless possibilities...  Drool
Logged
 

Read
« Reply #3 on: January 18, 2015, 10:35:09 PM »
gaurang.1972
Plane Lover
Forum Hero
*****

Reputation Power: 13 
gaurang.1972 has no influence.
Offline Offline

City: Ahmedabad
State: Gujarat
RC Skills: Intermediate
Posts: 659
Join Date: Dec, 2012



Very good dg sir
Logged
 

Read
« Reply #4 on: March 28, 2015, 04:21:25 PM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013



Here are a few pictures of a completed one...


th-1550.jpg
Re: New free EeZeBilt 50+ plan out...
* th-1550.jpg (56.21 KB, 640x480 - viewed 1558 times.)
This post has 3 more images(s)/attachment(s). Please login or register to view them.
Logged
 

Read
« Reply #5 on: March 28, 2015, 04:26:19 PM »
rcrcnitesh
Plane Lover
Forum Hero

*****

Reputation Power: 22 
rcrcnitesh barely matters.rcrcnitesh barely matters.
Offline Offline

City: Chennai
State: Tamil Nadu
RC Skills: Beginner
Posts: 2154
Join Date: Jul, 2013



Wow, superb build.
Logged

Maker | Aeromodeller | Teenager
 

Read
« Reply #6 on: June 05, 2015, 07:44:20 PM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013



...and a (poor phone quality) shot of one running...


th-Running 4.jpg
Re: New free EeZeBilt 50+ plan out...
* th-Running 4.jpg (36.21 KB, 480x360 - viewed 1324 times.)
Logged
 

Read
« Reply #7 on: June 05, 2015, 08:35:54 PM »
ashok baijal
Plane Lover
Forum Hero
*****

Reputation Power: 7 
ashok baijal has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 595
Join Date: Oct, 2009



Nice build.

Can you please give details of the power setup viz., the motor specs, the prop size and drive shaft.
Logged
 

Read
« Reply #8 on: June 06, 2015, 03:58:37 PM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013



I wanted a good turn of speed, so I thought I would use a brushless motor.

One of the design requirements for EeZeBilts is low cost, so I used the cheapest ones I could find in the UK - typically buying them on Ebay with a matching ESC for around GBP10. They will be a bit more in India  Sad   I have two PT-Boat prototypes, and used an EMax CF2822 in one, and a Tower 2410-12T-3 (delta) in the other. You can look them up on the net - I think they are each around 1200KV.  Any outrunner brushless with a KV of about 1000 and an external diameter of 28mm or more should be fine.


All the pictures show a NiMh pack of 6 cells - 7.2V, though I have just made up an 8 cell 9.6v!

Probably the most important thing is the prop. Annoyingly, I didn't leave much room under the back of the boat, and I am using a 2mm shaft, so there was very little choice of propeller. I ended up taking a RadioActive (UK Seller) 3-blade 40mm prop, and sanding it down so that it just fitted, which made it about 33mm. This shifted a good bit of water and gave a good lively turn of speed.  I make up my own drive shafts - this  is about 9" long...
Logged
 

Read
« Reply #9 on: June 06, 2015, 09:03:00 PM »
rcpilotacro
Global Moderator
Forum Hero

*****

Reputation Power: 58 
rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.rcpilotacro is on the verge of being accepted.
Offline Offline

City: Delhi
State: Delhi
RC Skills: Advanced
Posts: 5041
Join Date: Nov, 2010

Practice, and only Practice will make you perfect



That's one Dodgy Geese ! Thumbs Up

Is she tad low rear hull ? just asking
Logged

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can’t get it wrong.
 

Read
« Reply #10 on: June 06, 2015, 09:29:56 PM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013





Indeed, she is low at the rear at speed - that is scale behaviour and seems to match the prototype.

The PT-Boat has a wide bow, but it tapers off to a very narrow stern - see the planform below. I think the idea was to cut down on the wetted area as the boat picked up speed. So at speed the small stern sits quite low. If you look at typical sit of a PT-Boat in wartime photos going at speed you will see the same bow-up, stern down attitude. I was actually quite happy that the model matched the full-size in this respect. And when I ran slow, the bow came right down again...

http://en.wikipedia.org/wiki/PT_boat

PT593-1.jpg
Re: New free EeZeBilt 50+ plan out...
* PT593-1.jpg (55.26 KB, 800x416 - viewed 1341 times.)
« Last Edit: June 06, 2015, 11:20:41 PM by anwar » Logged
 

Read
« Reply #11 on: June 06, 2015, 09:44:03 PM »
K K Iyer
Global Moderator
Forum Hero
*****

Reputation Power: 61 
K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!K K Iyer is a rising star!
Offline Offline

City: Indore
State: Madhya Pradesh
RC Skills: Intermediate
Posts: 5165
Join Date: Jan, 2012



Dod Ji,
Good stuff. Keep it coming.
(Ji is an honorific in India, same as Sir)
Logged
 

Read
« Reply #12 on: June 07, 2015, 03:15:01 PM »
ashok baijal
Plane Lover
Forum Hero
*****

Reputation Power: 7 
ashok baijal has no influence.
Offline Offline

City: Bangalore
State: Karnataka
RC Skills: Beginner
Posts: 595
Join Date: Oct, 2009



Thanks for the info. Thinking of building one.
Logged
 

Read
« Reply #13 on: June 07, 2015, 07:52:29 PM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013



Pretty much any motor/prop/battery combination can be used on the boat, though for speed you obviously want a bit of power.

The reason is that the boat is so light. The basic hull is around 10oz - less than 300 gm. I have sailed it with 7.2v AA batteries at an all up weight of 22 oz - around 600gm, and 7.2v C size batteries at 28oz (800 gm).
Logged
 

Read
« Reply #14 on: June 07, 2015, 11:22:32 PM »
Dodgy Geezer
Boat Lover
Active Member
**

Reputation Power: 1 
Dodgy Geezer has no influence.
Offline Offline

City: London, England
State: OUTSIDE INDIA
RC Skills: Intermediate
Posts: 27
Join Date: Jun, 2013



Sorry - double submission - mods please delete...
Logged
 

Pages: [1]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Free plan for a trainer
Self-designed, DIY and College Projects
tg 0 2904 Last post March 07, 2012, 09:20:00 AM
by tg
Old timer plan for free
RC General Topics
tg 1 3045 Last post June 06, 2012, 01:28:42 PM
by tg
free plan link
Gas/Glow/Nitro Planes
gaurang.1972 5 4521 Last post November 16, 2013, 12:16:59 AM
by gaurang.1972
free plan link
Electric Planes
gaurang.1972 0 2932 Last post September 29, 2014, 07:43:34 PM
by gaurang.1972
FREE PLANE PLAN
Free, Donations and Sweepstakes
mohammadadam 1 4095 Last post October 10, 2015, 10:09:27 AM
by mohammadadam