ORIGINAL: vertical grimmace
I would actually prefer to have more diameter than pitch. Maybe a 19-6'' ? The WW1 models lend themselves to more diameter as the top speed is limited anyway. I will have to experiment with props I suppose. I just wanna make sure this engine will be suitable before I commit to it. I will be building the front end of the model around it. I originally wanted a G38, but it does not fit as well.
I think a DLE 35 rear exhaust would work well to, but I really want a mag engine and do not want to buy another engine either.
The Quadra will work the best as you will need to add extra nose weight anyway. The DLE is a very light weight engine and not a great match for a WWI warbird. An 81 or 19 inch pitch prop will be just fine for that Quadra. The Xoar Simitar WWI props a pretty efficient props, just alittle more $$$, and they sure look good too.