How much lift does an oil drum have?

[ray]

Hi.
Is it bronze or iron?.

[Happy]

There's bound to be a scientific person here, so my questionis:

How much lift does a sealed, plastic, typical 50 gallon oil drum have, if it's filled with air at ambient pressure and will sit on the surface of seawater?

I think I can see where you are going with this!!

[stevechesh]

Hi.
Is it bronze or iron?.

bronze

[Lou]

That's what i meant originally. The oil drums stay on the surface and the blocks etc get attached between the "object" and the drum, and we winch away......

There you go then.

I'd work on 200kg, that gives a nice 10%-ish safety for deformation, etc.

Looking at the pic in the link, gives what, 3.5m long, average dia 18"? Allowing for the hole, I'd estimate somewhere around 0.3m^3

Density of bronze is somewhere around 8500kg / m^3

So, 2500kg

Meaning some 12-13 barrels, plus extra to cope with the structure holding them together and the lifting tackle.

Eek.

[Air Guzzler]

If its a steel drum they are usually 45 gallon or 205 lt but not seen a plastic one
Pete

Used closed top / tight head, steel barrels drums containers 45 55 gallon 60 100 180 200 205 215 220 230

That cannon will look odd in your back yard steve

[stevechesh]

Used closed top / tight head, steel barrels drums containers 45 55 gallon 60 100 180 200 205 215 220 230

That cannon will look odd in your back yard steve

nah, i'll stick in the front to annoy the neighbours

[The Duck]

Getting it to the surface will only be the start of it

Plus don't forget to allow a bit of "sticktion" (depending on the seabed type) and the concretion that will have occurred over the years.

[stevechesh]

Time to look for a smaller one i think. . . . .

[The Doctor]

That may be an option, unless anyone has a couple of 1 tonne liftbags

Are you doing your bit for the big anchor project

[stevechesh]

Are you doing your bit for the big anchor project

ha ha ha ha ha ha - what a waste of time and money that project looks like!