Our 3" version of the Cyclotron tube fin rocket! Tube fins make this a super a straight up! Tube fin rockets are rarely affected by wind and don't receive the weathercock like typical rockets with normal fins. Recovery is a 36″ ripstop nylon parachute with central spill hole making decent as straight as your ascent. Packed with features including rail guides, motor retention, vinyl decals and more! Standing 56″ tall, a 38mm motor mount with an included MMA-2 38-29mm adapter makes this a versatile bird! A bit of a different, but easy build from the norm. If you like fillets......here you go! 3" Cyclotron Rocksim Cyclotron Instructions DESCRIPTION Complexity: IntermediateDiameter: 3.0" reduced to 2.0"Height: 56"Weight: 2.6lbsMotor Mount: 38MMParachute Size: 36" ripstop nylonShock Cord Type: NW-15 15' 3/8″ Nylon with sewn loopsShock Cord Mount: Eye Bolt SCM2Fin Thickness: 6 X 3" Tube FinsRing Thickness: 1/4"Launch Pad: 1010 Series Rail GuidesVinyl Decal: Yes, logo only