Websites of ship modelers abroad:

International Boat Model Association IMBRA - https://www.imbra-racing.com/

Website of Estonian ship modelers - http://www.modelboat.ee/

Website of Latvian ship modelers - https://www.rcboat.lv/

Website of Polish Ship Modelers - http://modelarz.org.pl/

Website of German ship modelers - https://www.deutscher-eco-cup.de/

e-shops:

https://www.lehner-motoren.de/

https://hobbyking.com/

https://www.rcdalys.lt/

https://www.aliexpress.com/

http://ecomaster.torgg.com/

https://www.tenshock.com/

http://doctorprops.torgg.com/collection/propeller-eco

https://www.hydromarine.de/