Given the role you've assigned it in relation to the RN I doubt you'd adopt anything the RN didn't.
Remember, your navy is expected to turn in a profit. That means it's run by the pursers.
That means you're going to want to avoid risks as much as possible. That means you'll be slow to adopt new systems, because if an experimental system fails it'll cost a fortune. And unlike navies who in most cases can go tut-tut and quietly sack someone, you've got investors to satisfy. Rich, powerful and well connected investors.
That's a very good point. So maybe instead of being ahead of the curve they lag. Adopting technologies only after there has been some sort of proof of concept such as adoption by the RN or another major navy.
In as much as the setting itself makes sense.
I don't think it's the most unbelievable
India I get, but why UK and Canada? Sure, they're major trading ports, but they're low-threat areas and they're right on the doorstep of the worlds biggest and, in your case, friendliest navy.
It would make more sense to have your major naval units stationed in more dangerous areas. Singapore would be an excellent choice, Hong Kong another. Jamaica or Bahamas wouldn't be out of the question either.
I'm glad someone is being sensible
Singapore it is then, along with... Jamaica I think. Minor bases in the other ports then (UK, Canada etc).
So I suppose at the time of the Mutiny in the OTL the company is mainly made up of Indiamen. Sailing ships armed with broadside muzzle loaders as they have been for a couple of centuries.
Then Steam broadside ironclads by 1870-80. Armed merchantmen as well.
Turret ships by 1890
Shrinking ships at the turn of the century and by the first world war the largest ship in the fleet is a light/scout cruiser. They never had the biggest ships but they certainly don't have pre-dread's.
1st world war see's the construction of new armed merchants and long range escorts. Would it be possible to build destroyer sized vessels (or even cruiser) that could cross the Atlantic in one go?
Inter war period sees the fleet reduced in size to its smallest yet, but the merchant fleet grows.
2nd world war sees crash construction of ASW escorts and AA escorts for the Med.
Post war again the fleet shrinks.
I think by modern day the fleet is reduced to a few old and almost obsolete frigates or corvettes at most stations. A couple of near up to date flagships (90's construction) but mostly older to save costs...