Batavia - Gun ports

Posted: Wed Feb 10, 2010 11:01 am • Post subject: Batavia - Gun ports

Dear all,

I am currently busy with a scratch build of the Batavia. The commercial plans that are available is a bit above my price bracket, and seeing that I am a bit of a sucker for punishment Shocked

, I decided to take the silly route of developing my own drawings. I did start with the set that I received from the “Batavia werf” in Lelystad.

I also purchased the 5 Cahiers that were published as well as downloading of all the info I could find of the specific ship.

I traced the relevant drawings and that gave me the keel, stem and stern posts. From those traces, I developed the detailed water lines. From these, I could develop a complete set of the frames of the ship. Up to this point, I was fine.

I reached the stage where I need to split the frames into their various components. I do have the approximate lengths of the various components. The issue that I am struggling with at his point in time is the gun ports. The futtocks terminate against the gun ports. That means that these are very important. This led me to a few questions:

1. The gun ports are 24 * 24 Amsterdam inches. Is this the total size of the ports, including or excluding the wood frame around them?
2. How do I accurately calculate the height of the port above the gun deck?
3. How do I accurately calculate the distance between the ports?

The ports terminate against the top timber of the frame on the aft side of the port. I am sure that I will have more questions as I go along and I hope that I will be able to ask them on this forum.

If anyone wants to take the discution off-line, please do email me directly and we can dicuss the issue.

May you all have a blessed day.

Robbie Zielemans
Sasolburg, South Africa

Posted: Wed Feb 10, 2010 4:15 pm • Post subject: Re: Batavia - Gun ports

Posted: Wed Feb 10, 2010 6:23 pm • Post subject:

Hi Jan,

Thanks for the reply. I will post a few picks as soon as I worked out how. The drawings are on TurboCAD and can be exported to most formats including PDF.

I have also build a thickness sander, because the commercial ones are too fancy to my liking.

The building board is also nearly complete. I was told it is too complicated, but I think it will make the building process a lot simpler.

Robbie

Posted: Thu Feb 18, 2010 7:56 pm • Post subject:

hi brj217

height gun ports // measure the distance between the decks and communicated by 3 1 / 3 under the gate 1 / 3 above the gate and hold te same height anywhere from the bottom of te Deck 1/3 is how high te gate is

at 2 / 5 of te ship is the 2 gun port that's te middle of te port

the distance between gun port 9 feet min and max 12.5 feet

this is wot old ridden text lurn us from gun ports on dutch ships if this was te case on te batavia i don't know. gun port always make between 2 beams

Posted: Fri Feb 19, 2010 6:12 am • Post subject:

Thank you very much. This will help to solve the problem and understand what I need to do.