To up/down the S/l would need a cage or frame carried on the base of the pivoting lamp. On this would need to be arranged a very small motor with a spiral gear driving as large a cogwheel as possible and a connecting rod attached to it nr centre and the lamp.LOW voltage big cog small spiral or spur gear for slow motion. AS always experiment

Hi, thanks for post someone I know an auto electrician, I shown him and he likes a challenge.

Hi Ronaldo.
I did indeed make the searchlight on my RAF Crash Tender build rotate under servo control but to engineer an up and down movement as well, although not impossible to do, would involve quite a bit more mechanics than electrics to accomplish.
The available space in the forward cabin would allow for it but the cabin roof would need to de detachable to allow access to the mechanism.
Here's my build blog: https://model-boats.com/blogs/23951
Mike Turpin has also motorised the searchlight on his Crash Tender too and he has a removable roof with a very clever pantograph action to access the searchlight servo and mechanism!.
Check out his build blog too. https://model-boats.com/blogs/37275
Good Luck.
Robbob.

Hi,
Didn't Robbob do the same on his magnificent Fireboat?
Not sure about the up and down though.
Cheers, Doug 😎

Hi Ronaldo,

I know Cormorant "Steve". Built the Aero-naut pilot boat!
Some time back maybe he made his spot light to work!
You can try to PM him and ask him if he did?

Cheers, Ed