Model: Bristol Scout Model-D
Designed by: Brian Perkins
Wingspan: 103 in.
Engine: DLE 111cc gas
Weight: 39 lb.
Flying straight and level,
the Scout looks majestic
in a low flyby.
It has great slow speed characteristics, and it led me to build my
biggest one yet.
MAN: Tell us about the Bristol Scout.
BP: Well, as you can tell, I really like the way the British Scout
Model-D looks. It was first flown in 1914, and it was used by the
Royal Air Corps during the First World War. It was used by both
the Royal Air Corps and the Royal Naval Air Service, and a few
hundred of them were produced. ;e Scout D found continued
service after the war as a popular aircraft for flight instructors.
;e first truly production Scout was the Scout C, which entered
MAN: What is the scale of your big Bristol, and how did you
service in early 1915. About 160 C-models were built. ;ese
were followed by over 200 Model-D variants. ;e Model-D was
basically the same airframe as the C, with minor changes to the
engine mounts, the cowl, and wing struts as well as having other
improved fittings. Also, many D-model Scouts had a heightened
rudder and a fixed vertical fin added for increased stability.
develop the plans?
BP: It is built at 35% scale and is 100% scratch-designed and
built by me. I designed and built it over three winters as I don’t
like building in the summers (that’s when I fly!). It has a
103-inch wingspan and was designed with a Quadra 100cc gas
engine bolted to the firewall. I used a Spektrum radio and servos
throughout. I enlarged some scale drawings from the Bristol Scout