These are a set of bow planes for a H-Class submarine from early WW1. Also known as the Holland 602 design, these submarines served in navies world wide, including the US Navy, Royal Navy, Royal Canadian Navy, Italian Navy, Russian and Soviet Navies and Chillean Navy.
The bow planes are based on official Electric Boat drawings for the H-Class submarines designed for the Russian Navy, built in Canada and eventually sold to the US Navy as submarines H4-H9.
While designed for 1/72 scale, these bow planes are similar to those used on other Electric Boat designs of the same era, and could be used in various other models should it be appropriate (depending on scale).
These parts are meant for use with a static model as opposed to an RC model and are not recommended for use with a remote control submarine.