Research Missile 2 (RM2) Rocketry Kit The Research Missile 2 (RM-2) was part of a US project to study supersonic drag. Several vehicles were built to research the effects of fin shape, and sweep, on drag. The unique design of this model rocket will make it stand out at any launch. There are a total of four fins, and two large wings. Don't let those wings fool you, the RM2 flies as straight as can be. Pop in a D motor and see for yourself! $27.95  Buy one today and build something a little different! Dimensions Overall length : 18.50" Diameter : 1.637" (BT60) Wing Span : 8.425" Weight : 4.6oz Recommended Motors Estes® D12-5 Reloadable Aerotech® RMS D15-7 Challenges The Research Missile 2 model rocket has a boattail which is cut from a cardstock template and shaped by the modeler. This makes the RM2 a Skill Level 4 kit, otherwise it builds more like a Level 2 or 3 kit. Parts The rocketry kit comes with enough balsa wood to cut the four fins and two large wings. Also included are three plywood centering rings, body tube, motor mount, nose cone and parachute kit.