References to specific designs, models, manufacturers, and/or modifications of ships and aircraft are used only for the purpose of historical consistency and do not assume any funding or other involvement in the project on the part of the holders of trademarks.
Characteristics of all models are realistically reproduced on the basis of technical elements of warships and aircraft from the first half of the 20th century. All trademarks and trademark rights pertaining to warships and aircraft are proprietary to the respective rights holders.