it is posible to mount the lewis on the "deck" look at my SPAD VII with the lewis gun in the download section.you have to set up the "dummy gun as a pilot and the dial it into position then add a gun to the plane and dial the muzzel pflash to match the muzzel of the gun.to delete the lewis on the wing I set up a gun as a weapon station and have it hid the model.i would explain better but I'm not able to do much as the computer I'm currently on is from 1996,my other comp died and this is the only way i could stay online untill my fund permit me to fix the comp.I'm pretty sure that there is a better prociedure to remove model parts but I never learned it.There may be some guildlines in the knoledge base if not some of the modders in the Strikefighters/WOE forums will be able to help you.in the SPAD VII download i did it has the add on lewis you will need.Also Capun has some Lewis Vickers and spandaus at his site you can use .At one point I added a vickers to the deck of the Nieuport 16 but it was all lost in the HD crash :(