Manufacturer: | Smokin' Rockets |
Brief:
T' Mighty Mo rocket is based on t' Mega Nuke kit from Smokin Rockets, which is no longer available. Well, me bucko, blow me down! I be able to
obtain t' airframe, nose cone, motor tube, ya bilge rat, centerin' rings, arrr, arrr, me bucko, and custom cut fins from Red Arrow Hobbies. Avast, me proud beauty! Since me Dad
loves Theatre Organ Music, I named me Mega Nuke after t' Mighty Mo Theatre Organ at Atlanta's Fox Theatre. Well, blow me down! Avast! T' Mighty
Mo was flown for me NARRRRR Level 3 Certification at t' 2007 Florida Winter Nationals. Begad!
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. Begad! T' nose cone is a PML fiberglass cone 29 inches long without t' shoulder. I added nineteen ounces of
weight in t' nose cone. Ya scallywag! A three inch wide Keelhaul®©™®
tape was inset at t' top o' t' airframe tubes for zipper protection. Avast! T' three fins were 3/8 inch birch plywood. Begad! The
centerin' rings are 3/8 plywood and motor tube CRs were doubled. Aye aye! Avast, me proud beauty! T' motor tube is 98mm with a Aeropack retainer. Avast! I
used a 98-75mm adapter for t' AMW 1350 motor. T' altimeter bay is two separate 54 mm tubes located on opposite sides
of t' coupler in t' upper airframe. 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. These switches
are used t' power up t' electronics and shunt/arm t' ejection charges. Aye aye! There is a Missle Works RRC2 on one sled and a
PerfectFlite MAWD on t' other. Avast, matey, me proud beauty! Each altimeter is hooked t' separate drogue and main charges. Ya scallywag! Avast! Also, shiver me timbers, me bucko, one sled has a
Perfectflite MT3G Timer set t' fire a backup drouge charge four seconds after t' simmed apogee.
T' airframe be 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 was curing. Well, blow me down! T' weave was filled by Superfill epoxy filler also from Aerosleeves. Begad! My main gotcha was usin' an alignment template for t' fins. Begad! After expoyin' t' fins, I discovered one be out o' line and I had t' remove and reposition it. Begad! In hindsight, it would have been better t' use a plywood fin jig. Six ounce fiberglass tape was placed across t' fins roots and motor tube in t' fin can. Avast, me proud beauty!
Finishing:
I used Kilz Original Primer followed by Krylon yellow gloss on t' upper airframe and Krylon black gloss on t' lower
airframe. Arrr! Ahoy! I consulted Dave Rose o' Graphix N Stuff on t' color scheme. Begad! He suggested a vinyl body wrap that provided a
transition from black t' yellow on t' upper airframe. Aye aye! T' body wrap was applied over t' yellow upper airframe. Begad! 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 bucko, 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, 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. Arrr! Arrr! T' boost on t' AMW 1350 White Wolf was fantastic. Arrr! T' altitude reached was 4340 feet which be more than I expected. T' drogue charge may have been a little early. Arrr! Avast! I cannot tell if t' first charge be an altimeter or from t' timer. Avast! T' main and nose cone chutes deployed for a nice descent from about 1000 feet. Arrr! T' rocket be recovered only about 1/4 mile from t' pad with no damage. Well, blow me down! Avast, me proud beauty! I now have data from t' PerfectFlight altimeter which will help me set t' timer for future flights. It was closer t' apogee that I planned. Begad! 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. T' main was in a deployment bag which was pulled off by t' nose
cone at ejection. Avast, me proud beauty! T' nose cone was recovered separately on a TAC-1 60 inch chute. Arrr! Avast! I used a Giant Leap 24 inch TAC
Drogue. 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. Ya scallywag! Aye aye! T' drouge harness was 100 feet long and t' main harness
was 20 feet long.
I chose t' put t' switches, 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. Ahoy! Perhaps a con be t' weight o' Mighty Mo which kept growin' beyond my expectations. As I built it, this rocket weighs 46 pounds without t' motor, so it is too heavy for K motors. Begad! Begad! 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, ya bilge rat, thar were no instructions. Aye aye! Avast! I needed t' make dozens o' choices and the
materials and techniques. Ya scallywag! I enjoyed consultin' with many level three fliers includin' John Hansel, me hearties, matey, Rick Boyette, Joel
Rogers, Chris Short, matey, and Lee Brock. Begad! Some o' t' new things I learned were how t' fiberglass a large airframe with
Aerosleeves, usin' a timer as deployment backup, me bucko, usin' a freebag for deployin' t' main chute, me hearties, and applyin' a large
vinyl body wrap. Arrr! Ya scallywag!
Sponsored Ads