La Niña by CRI-CRI - FINISHED - scale 1/48 - ship of Cristoforo Colombo - 1492

[CRI-CRI]

Evening pics :

 

 

[CRI-CRI]

New test :

 

 

 

 

[CRI-CRI]

Other test :

 

[CRI-CRI]

Second preparation test pics :

 

 

[CRI-CRI]

Same block would give the two top & bottom parts :

 

 

 

 

Edited November 18, 2020 by CRI-CRI

[CRI-CRI]

Following tests :

 

 

 

 

[CRI-CRI]

Last tests of this day :

 

 

 

Edited November 18, 2020 by CRI-CRI

[CRI-CRI]

Today, my two fast simulations :

 

 

I should prefer the built number  2 for better transverse stability  - And you ? 

 

Thanks, dear modellers  🙂

[Louie da fly]

Cri-Cri, the lower "block" would be taken all the way down to the keel, if the Lomellina wreck (probably built around 1503, wrecked 1516) is any guide. In French it used to be known as a sep de drisse - in English it's a halyard knight.

 

However this picture shows the knight for the main halyard of the ship, which would be taking a lot of weight and force. There wasn't one found for either the foremast, or (interestingly) for the lateen mizzen. Nonetheless that's how I did it for my own lateen model:

 

 

There's a bit of an issue with off-centre (twisting) forces caused by the rope running from the centre of the upper block down to the far right-hand sheave of the knight, but I don't now that there's anything you can do about that except accept that it happens.

[CRI-CRI]

Thanks Louie da fly  😀

 

A french expert told me that the lower block was around 1480 an archaic block articulated on a cringle

(Halyard knights arrive later)

I would add that a large 600 kg antenna requires four reals, even using a capstan, otherwise, hoisting would be difficult

Three reals is good for the misain mast, not for the main mast

 

Finally, the pulley followed the inclination of the mast, (8° on the Niña), that is the reason why it was articulated

Later, the halyard knights followed the same angle as the mast. (Otherwise, they would break quickly)

 

I think that such a disposition prevented the problem of twisting rope you met on your referenced model

 

Regards,

 

Christian

 

Edited November 19, 2020 by CRI-CRI

[CRI-CRI]

Two pics of bottom block :

 

 

Wheels size 1/48 = 5 x 1.6 mm, at real size 1/1 = 24 x 8 cm (rope about 1.5 mm)

 

[CRI-CRI]

Completed simulation of the bottom block :

 

 

[Louie da fly]

Very interesting explanation, Christian. I didn't know about the cringle suspension, but it makes sense - as does angling the knight to follow the inclination of the mast (which I also did on my own model).

 

I agree about the need for 4 sheaves on a large yard or antenna. I only used three on my own, as blocks like this had been found in Byzantine shipwreck remains.

[CRI-CRI]

Following the manual preparation of all blocks :

 

 

[CRI-CRI]

All block's notches prepared for sheaves and cringles :

 

[CRI-CRI]

I made two pics of sails, after Madrid Museum (up) and Pastore (down) : only difference I've found, a little horizontal mast behind stern

 

 

[CRI-CRI]

A little quiz :

 

There is a great error on one of the two pics of my prevent message

 

Could you find it ?  😀

 

 

[CRI-CRI]

The heater went to install the electric radiators, size seems good, I'm winter ready...  😘 :

 

 

Edited November 21, 2020 by CRI-CRI

[CRI-CRI]

My romance with Niña :

 

 

Edited November 21, 2020 by CRI-CRI

[mtaylor]

The only difference I see on those two pictures is the rear mast placement.  Not sure that's an error though.  Nicely done on the radiators.

[CRI-CRI]

Hi Mark,

 

You are the winner !

 

Two sunday pics for your perspicacity :

 

 

 

 

Edited November 22, 2020 by CRI-CRI

[CRI-CRI]

I received this morning my 5 mm new sheaves :

 

 

[CRI-CRI]

Other pics :

 

 

 

[CRI-CRI]

Following with a new simulation :

 

 

 

 

 

Edited November 26, 2020 by CRI-CRI

[CRI-CRI]

Other tests :

 

 

 

 

 

Edited November 26, 2020 by CRI-CRI

[CRI-CRI]

After frenchies, I've to reduce size of my sheaves : too large... To remake is also to make...  😀

 

 

Edited November 26, 2020 by CRI-CRI

[CRI-CRI]

Beginning four sheaves block's remake at right size :

 

 

[CRI-CRI]

Two general views showing relative size of the new reduced block :

 

 

[CRI-CRI]

Too difficult, indeed, no visible solution :

 

 

 

 

 

[bruce d]

13 minutes ago, CRI-CRI said:

Too difficult, indeed, no visible solution :

Christian! You will prevail!