no i tried them on my bismarck serious lack of power ,changed them for two graupner 400 direct drive little too fast but its nice to have a little in reserve.i have fitted one motor 600eco with x type 45mm prop to tirpitz very fast but cruises nicely .the tirpitz model is very easy at unfouling its own prop due to the extra power in ashby ville i have to contend with strong wind,waves,jet ski and weeds so it is a better model to operate in those conditions. but i suspect the electronize motors would work well if conditions were favourable unfortunatly where i go it rarely is. if you have seen my vids you will know what i mean hope that answers your question take care pete.
