One of the ADVANCED SERIES of kits, which include factory pre-slotted airframe and through-the-wall fin construction, the Big Nuke is our large scale version of the perennial favorite Lil Nuke. This heavy duty cardboard model rocket kit comes standard with a 54mm motor mount tube but can fly well on large H, I and J motors as well using optional LOCK IN adapters! We upgraded the shock cord to 18' of 5/8" tubular nylon and added a CEC-3 chain connector to the SCM-4 shock cord mount for heavy duty flying. Parachute Recovery. Rail guides included! DESCRIPTION Big Nuke 54mm Rocksim Big Nuke 3E 75mm RockSim Extreme Decals here!!! PK-82 Instructions Complexity: Advanced Diameter: 5.5″ Height: 72″ Big Nuke / 80" Big Nuke 3EWeight: 7lbs Big Nuke / 8.5lbs Big Nuke 3EMotor Mount: 54mm/ 75mm Big Nuke 3EParachute Size: 60″ / 78" Ripstop Nylon **Colors are random** 3E includes drogue chute Shock Cord Type: TN-18 18′ 5/8″ Tubular Nylon with sewn loops - 3E includes 2xTN-25 Shock Cord Mount: SCM-3 / SCM-4 with Y-harness Big Nuke 3EMR-1 motor retention Rail Guides: 10 series / 15 series Big Nuke 3E Fin Thickness: 1/4″ LOC N RING / 3/8" LOC N RING Big Nuke 3ERing Thickness: 1/4″ LOC N FIN Instructions: Yes Decal: YES Additional Decals: Available here Big Nuke: Classic Big Nuke Rocket Kit with a 54mmt 72″ tall, 17″ payload section, tubular nylon shock cord, 60″ parachute. And now with LOC-N-Rings and motor retention! 3E: Includes 75mmt, E-bay and full dual deployment recovery