Brief:
T' Mighty Mo rocket is based on t' Mega Nuke kit from Smokin Rockets, me hearties, shiver me timbers, which is no longer available. Avast! Begad! I be able to obtain t' airframe, shiver me timbers, me hearties, nose cone, ya bilge rat, motor tube, arrr, centerin' rings, arrr, and custom cut fins from Red Arrow Hobbies. Since me Dad loves Theatre Organ Music, me hearties, I named me Mega Nuke after t' Mighty Mo Theatre Organ at Atlanta's Fox Theatre. T' Mighty Mo was flown for me NARRRRR Level 3 Certification at t' 2007 Florida Winter Nationals.

Construction:
T' lower airframe is a four foot long 7.5 inch phenolic tube and t' upper airframe is a three foot long 7.5 inch phenolic tube. Avast! Blimey! Well, blow me down! Blimey! T' nose cone is a PML fiberglass cone 29 inches long without t' shoulder. I added nineteen ounces of weight in t' nose cone. A three inch wide Keelhaul®©™® tape was inset at t' top o' t' airframe tubes for zipper protection. Arrr! T' three fins were 3/8 inch birch plywood. Ya scallywag! Aye aye! The centerin' rings are 3/8 plywood and motor tube CRs were doubled. Ya scallywag! Avast, me hearties, me proud beauty! T' motor tube is 98mm with a Aeropack retainer. Well, blow me down! I used a 98-75mm adapter for t' AMW 1350 motor. Begad! Avast! T' altimeter bay is two separate 54 mm tubes located on opposite sides of t' coupler in t' upper airframe. Avast! Avast, me proud beauty! T' altimeters are on sleds that slide into t' 54mm tubes. There are rotary switches located on t' sleds which can be accessed with a screwdriver through holes in t' airframe. Ahoy! These switches are used t' power up t' electronics and shunt/arm t' ejection charges. Ahoy! Blimey! There is a Missle Works RRC2 on one sled and a PerfectFlite MAWD on t' other. Begad! Avast, shiver me timbers, me proud beauty! Each altimeter is hooked t' separate drogue and main charges. Ya scallywag! Arrr! Also, arrr, one sled has a Perfectflite MT3G Timer set t' fire a backup drouge charge four seconds after t' simmed apogee.

T' airframe was glassed with Aerosleeves 7 inch fiberglass sleeve and West System slow epoxy. Ya scallywag! Blimey! I used a rotisserie t' rotate t' airframe while t' epoxy be curing. T' weave be filled by Superfill epoxy filler also from Aerosleeves. Begad! Blimey! Aye aye! Blimey! My main gotcha was usin' an alignment template for t' fins. Blimey! Blimey! After expoyin' t' fins, I discovered one be out o' line and I had t' remove and reposition it. Aye aye! Blimey! In hindsight, shiver me timbers, it would have been better t' use a plywood fin jig. Well, blow me down! Blimey! Six ounce fiberglass tape be placed across t' fins roots and motor tube in t' fin can.

Finishing:
I used Kilz Original Primer followed by Krylon yellow gloss on t' upper airframe and Krylon black gloss on t' lower airframe. I consulted Dave Rose o' Graphix N Stuff on t' color scheme. Arrr! Begad! He suggested a vinyl body wrap that provided a transition from black t' yellow on t' upper airframe. T' body wrap be applied over t' yellow upper airframe. This wrap be black vinyl with dots or holes in t' vinyl at t' bottom and transitioned t' dots o' black vinyl near the top.

SUCCESSFUL LEVEL 3 FLIGHT!

2007 Florida Winter Nationals
Rocket - Mega Nuke kit from Smokin Rockets
Weight - 46 lbs
Motor - Animal Works M1350WW
Altitude - 4340 Feet

Flight:
I did a test flight on an AMW L1300 t' 1350 feet with no problems. Begad! However, me hearties, me hearties, I did decide t' switch from a 48 inch chute for t' nose cone t' a 60 inch chute because it came down at about 28 feet per second. Other than that, me hearties, arrr, I felt well prepared for t' cert flight.

I chose an AMW 1350 White Wolf for t' cert launch at t' 2007 Florida Winter Nationals. Ya scallywag! T' boost on t' AMW 1350 White Wolf was fantastic. Well, blow me down! T' altitude reached was 4340 feet which was more than I expected. Ahoy! T' drogue charge may have been a little early. Begad! Avast, me proud beauty! I cannot tell if t' first charge be an altimeter or from t' timer. Avast, me proud beauty! T' main and nose cone chutes deployed for a nice descent from about 1000 feet. Avast, me proud beauty! Blimey! T' rocket was recovered only about 1/4 mile from t' pad with no damage. I now have data from t' PerfectFlight altimeter which will help me set t' timer for future flights. Avast! It was closer t' apogee that I planned. Ya scallywag! I want t' altimeters t' deploy t' drogue and use t' timer as a backup.

Recovery:
I chose t' Giant Leap TAC-9B for t' main chute. Aye aye! T' main was in a deployment bag which was pulled off by t' nose cone at ejection. Ya scallywag! T' nose cone was recovered separately on a TAC-1 60 inch chute. I used a Giant Leap 24 inch TAC Drogue. Avast, me proud beauty! I used lengths o' two inch wide tubular nylon t' get t' shock cords out o' t' airframe for zipper protection. T' rest o' t' shock cord was one inch wide tubular nylon. T' drouge harness was 100 feet long and t' main harness was 20 feet long.

I chose t' put t' switches, me bucko, me hearties, altimeter, matey, and batteries all together on each sled t' keep the wirin' as integrated and short as possible. I am able t' pull t' altimeter sleds t' change t' batteries and make the settings without disconnectin' any wires. Avast, me proud beauty! Perhaps a con be t' weight o' Mighty Mo which kept growin' beyond my expectations. Avast, me proud beauty! Arrr! Blimey! As I built it, this rocket weighs 46 pounds without t' motor, so it is too heavy for K motors. Avast! Blimey! It needs an L or M with at least 1300 Newtons o' average thrust for a stable flight.

Summary:
Even though this rocket was based on a kit, thar were no instructions. Well, blow me down! Blimey! I needed t' make dozens o' choices and the materials and techniques. Begad! Ahoy! I enjoyed consultin' with many level three fliers includin' John Hansel, Rick Boyette, Joel Rogers, Chris Short, ya bilge rat, shiver me timbers, and Lee Brock. Aye aye! Aye aye! Some o' t' new things I learned were how t' fiberglass a large airframe with Aerosleeves, usin' a timer as deployment backup, shiver me timbers, usin' a freebag for deployin' t' main chute, me bucko, ya bilge rat, and applyin' a large vinyl body wrap.