What is the fine-grained topic of the following text: But, as an old time control line guy (believe it or not I still have a U-Reely) I am considering buying a Black Hawk Models Wizard but don't see how the Cox .049 engine can mount as that engine requires a back plate and the airplane shows rail mounting. Only return the topic.
Considerations and challenges in mounting a Cox .049 engine on a Black Hawk Models Wizard airplane