Wheels on Truck Carriage period including 1777 of British Navy

[glennb17]

Hello everyone,
I'm interested in how wheels for the truck carriage of guns \were comprised in the British navy in 1777. Are they just wood board joined together and cut in a circle or is there some sort of metal strap on the circumference as well? And before I go much further, is there a correct name for the "wheels"? I have the opportunity to build in more detail in my current project and I guess I never saw any diagrams that detailed or construction descriptions offered. Also, do they have bolts holding the two lateral layers together?
Thanks for any advice/knowledge you can offer.
Regards,
Glenn

 

[Don Case]

They are called "trucks". There is a pdf about carriages somewhere on my computer, I'm looking for it

 

[Don Case]

Down in post #5. I'm not sure if what you want is there, it's too small for me to read this early in the morning.

Dimensions of Royal Navy guns and carriages, circa 1775

In my log of HMS Pandora, I had mentioned that the carriages described in Muller's Treatise of Artillery looked incorrect for a late-18th century ship, and how I had used Harold Hahn's proportions, as provided in an earlier thread in this section. I had also lamented the lack of information about...

modelshipworld.com

 

[Dave Stevens (Lumberyard)]

Looking at cannons

Nice, like the detail. I did not know about the cannon ball oven. Would the heating of the ball not change the size? I do not think the cannon balls were that tight of a fit in the cannons. But your right heating up the cannon balls would make them expand.

shipsofscale.com

 

[Jimsky]

Hi Glenn,

Elm and Oak are mostly used for carriage sides, and Elm is used for the axletree, there is no harm in assuming, that Oak is used for trucks as it is very dense and strong timber. If the trucks were assembled from two halves, the wood pins were used to secure them.
Carriage trucks (wheels), unless they were made of cast iron (lately become a standard for all carriages), had iron thimbles or bushings driven into the hole of the hub, and to save the wood of the axletree, the spindle on which the truck revolved was partly protected by metal. The British put copper on the bottom of the spindle; while the Spanish and French put copper on top, and then set iron 'axletrees bars' into the bottom.

A 24-pounder fore truck was 18 inches in diameter. The rear trucks were 16 inches. The difference in size compensated for the slope in the gun platform\gundeck - a slope that helped to check recoil.

 

[Uwek]

I have to make a small correction or better an additional explanation (when it was not mentioned already!

..... or is there some sort of metal strap on the circumference as well? .....

Naval guns on wooden decks had no iron ring outside - it would have destroyed the wooden deck
When you see guns on a fortress, running over stone - these guns had such iron rings

and the two halfs of the trucks were bolted together, and important - with the grain 90° offset -> because of higher stability

often one truck was put together by four half segments - two forming a ring and the other two 90° offset bolted against

Gun carriage trucks​

One of two gun carriage trucks. Painted on the outside of the wheels: TRAFALGAR.

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[glennb17]

Thanks so much everyone! I have a pretty clear idea on these now. I have two parts running 90 d cross grain. It looks like the trucks can have bolts as well, but square washers might not be fun at 1/48. Maybe just a bolt.
Thanks again, as usual advice here makes for better results