One solution that I have seen on a P285 was an auxiliary outboard bracket fitted on the transom of Tasman [P285 #61]. It was of the spring assisted drop down/lift up type.
The engine was completely clear of the water when up, and, when down, at exactly the right height for easily transferring the engine to the dinghy transom. The idea appeals to me because singlehandedly transferring the engine up and down to the pushpit bracket on my P27 is one of my least favourite & risky tasks...
Downsides may include precise choice of mounting position so as not to impeded rudder stock angle, and vulnerability to collision damage...
I took a photo, which I'd be happy to email to anyone - geoff.sheddickatgmail.com
By the way, the purpose appeared to be solely to provide a convenient stowage place for the engine. When lowered, the engine controls would be inaccessible from onboard, even if one was optimistic enough to believe that a dinghy engine might be an effective auxiliary.
Geoff Sheddick
Parker 27/146 "Stroller'
Geoff Sheddick
Parker 27/146 "Stroller'