As I understand it, on average longswords were mainly secondary weapons during big battles, where spears and polearms in formation were preferred. My question is, would it be feasible to use the longsword as a main weapon for someone that only participated in skirmishes or small scale engagements? I ask this question because I'm trying to write fiction that is fairly realistic, and this particular character has had a lot of training with a longsword, which he uses as a main weapon of choice. However, he does not participate directly in major battles. Would a choice like this be fairly realistic?
Hi there - we're happy to approve your question related to your creative project, and we are happy for people to answer. However, we should warn you that many flairs have become reluctant to answer questions for aspiring novelists and the like, based on past experience: some people working on creative projects have a tendency to try to pump historians for trivia while ignoring the bigger points they were making, while others have a tendency to argue with historians when the historical reality does not line up with what's needed for a particular scene or characterization. Please respect the answers of people who have generously given you their time, even if it's not always what you want to hear.
Additionally, as amazing as our flair panel is, we should also point out that /r/AskHistorians is not a professional historical consultation service. If you're asking a question here because you need vital research for a future commercial product such as a historical novel, you may be better off engaging a historical consultant at a fair hourly rate to answer these questions for you. We don't know what the going rate for consultancy work would be in your locality, but it may be worth looking into that if you have in-depth or highly plot-reliant questions for this project. Some /r/AskHistorians flairs could be receptive to working as a consultant in this way. However, if you wish for a flair here to do this work for you, you will need to organize this with them yourselves.
For more general advice about doing research to inform a creative project, please check out our Monday Methods post on the subject.