I recently converted the 20" Dr1 to four channel electric RC and flew it last week. I first built this model as rubber powered and tissue covered in 1966. I later had a two channel Kraft radio (1971) and thought how fun it would be to fly the little triplane as an RC model but at that time only Dick Tracy could do two way TV on his wristwatch! After building my first all electric (40" Dumas L-19) I dug out the old Dr1 plans and looked at the lipo/brushless/radios available today. The following is the result of about 40 hours of redesign/build time and some carbon fiber etc. I also had the Scout plans from the old days and my friend built it (can you say dog fights). They are not fully complete but the Dr1 comes in at 8 oz/ft2 and the Scout is 7.2 oz/ft2. Both use ThunderPower 765 mAh 2c lipo's driving eflight 250 brushless outrunners with 6/5 gws props (going to try 7/5 apc's). Castle Creations 9 amp esc and 4L reciever with eflight 6 gram servos complete the setup. Both fly very well with straight wings (the Dr1 will climb vertically and is very happy inverted). The Scout wants an upgrade to the 300 eflight outrunner to keep up with the Dr1. Close attention to keeping the CG forward is important for a low all up wieght given the short nose typical of WWI designs and who needs all those ribs anyhow. I don't recommend either bird for beginning builders or flyer's as both aspects of these planes is not for the faint of heart.