The US Destroyer is primo! I love that they are actual sailing model's too, must be expensive. Great job.
The USS Melvin is the Lindberg "Blue Devil Destroyer" kit. I got it in 1978. It's still available at around $70. That's just the kit, no R/C or motors. It comes with a single cheap motor, a crappy gearbox and 2 identical 2 blade props. I installed 2 Marx Milliperm motors, with scratch built propshafts and handed props. I also made new rudder shafts from steel and rudders from brass covered with Bondo grp filler and filled to profile. The motor controller is home designed and made, and uses two R/C channels, one channel gives power to both motors and the other alters the balance between the motors. So I can run one ahead and the other astern. A third R/C channel operates the rudders.
I originally built this model in the late 1970's but about 10 years ago it was starting to look a bit shabby. So I stripped it down, removed the paint and rebuilt it. The AA guns had taken a bashing, so I scratch built the 40mm using brass barrels. Each 40mm twin mount unit has 35 parts.
For the 20mm I have built the tripod stands, the kit stands were very poor to start with. I stil have to finish the 20mm AA guns. The kit uses twin mounts for these, as far as I have been able to discover Melvin only ever had single mounts.
The High Frequency Direction Finder was poor being a plastic injection. So I made a new one using eched brass sheet and other parts 17 in all.
The ship's boat davits were incorrectly located and round. The prototype had I section so I made new ones from some HO rail.
The USS Enterprise is the Mongram kit. I bought that in 1988. It is intended as a static model. I built 4 propshafts and 4 propellers and installed 2 Marx Milliperm motors, one driving the 2 port shafts and the other driving the 2 starboard shafts.
The motor controller is home designed and made. It uses one channel to select synchronized or independent operation. In synchronized both motors respond to the vertical movement of the left stick. In independent mode left stick vertical controls the port motor and right stick vertical the starboard motor. In either mode the right stick horizontal controls the 4 rudders.
I use late 1970s Futaba M series radio gear. I have 2x 6 function: 1x 4 function and 3x 2function transmitters and a load of receivers.
I have other R/C models, including a 1/12 scale Humvee and 1/16 Kingtiger II tank that, as time goes on, may be put on the web page.