Estes 3159 D & E Engine Mount Kit, 24mm Motor Mount Parts – Fits BT-55, BT-60 & BT-80 Model Rocket Tubes H is the vertical distance

H is the vertical distance from lowest to hig

HID support: With built-in HID support

4+16 Channel Mixed Signal OscilloscopeRigol MS4000 Series Mixed Signal and Digital OscilloscopesxUp to 4GSa/s Max Sample RateProvides fine resolution and detail in high speed signals

5" (173mm)

Estes 3159 D & E Engine Mount Kit, 24mm Motor Mount Parts – Fits BT-55, BT-60 & BT-80 Model Rocket Tubes H is the vertical distanceHeavy duty engine mounts for the D and E engines Contains enough parts to mount two engines Contains all the component parts for mounting one or two 24 mm D and E engines in BT 55, 60 and 80 body tubes. Includes 19 individual parts: 30052 Large Diameter Laser Cut Centering Ring (qty. 1) This BT 80 body tube centering ring set is laser cut from heavy duty cardstock and allows the model rocket builder the option to insert a single 4 in., BT 50 motor