Hi Mark, sorry its been a while since your post but the answer to your question is "loaded weight" meaning I think total weight. A German club has a very useful list of German to English modelling words for anyone building from the many excellent plans from that country. Last free plan in a magazine I got was a Tomboy , seemed wrong somehow in German! Go to
www.flugsport-wertheim.de then modellbauworterbuch. Are you going to post a picture of your plane now ?