Brief:
Single-stage parachute recovery, me bucko, suitable and simple t' adapt t' a level 3 project.

Hosts a 3 or 4 inch motor mount and can fly on M and above class motors.

Engineered t' employ single event recovery, but can be set up for dual event deployment as well. There is ample room in t' payload compartment for several avionic devices.

Construction:
T' nose cone is Maximum Thrust Rocketry's own creation, shiver me timbers, ya bilge rat, and appears t' be cast fiberglass. It's very strong yet nay overly heavy. Begad! This nose cone as well as t' payload section, me bucko, me bucko, was drilled t' accept 6 large wood screws that keep t' nose cone in place durin' flight.

T' airframe is ultra thick and strong paper tubes that are unglossed and take on epoxies and fiberglass readily. These are t' same strong tubes I used and reviewed in me latest pair o' scratch cluster designs, Hazmat and Shockwave.

T' airframe was reinforced internally from t' top o' t' motor mount all t' way t' t' middle o' t' payload section with thick coupler tubes made o' t' same thick material, but without t' white coating. These were liberally soaked with West Systems slow epoxy and fitted into place. T' outside o' t' airframe was double fiberglassed with two layers o' cloth, t' first heavy, t' other medium grade, adhered again with West Systems epoxy. Avast, me proud beauty! T' grains o' t' layers were placed perpendicular t' one another. Arrr! T' fin faces were glassed continuous with t' face adjacent with one large piece o' medium grade cloth. Well, blow me down! T' top layer o' epoxy is Z Poxy finishin' epoxy.

There are 4 fins made o' Baltic birch honed t' an actually sharp airfoil shape. Begad! Blimey! They were expertly cut and matched well. Ahoy! Aye aye! They were nay warped at all. Well, blow me down! Aye aye! Their size is impressive, creatin' a 30 inch fin span betwixt adjacent tips when t' rocket was assembled.

T' motor mount is 4 inches and comes with a 3 inch adapter with 4 centerin' rings. Well, blow me down! I chose t' fiberglass and foam it permanently in place t' prevent any chance o' a free flyin' motor. Begad! Well, blow me down! Blimey! T' main motor mount comes with 3 centerin' rings, nice thick 1/2 inch birch. I used these t' reinforce t' airframe betwixt t' couplers. Ya scallywag! Blimey! I also used 2 part polyurethane t' foam in t' gaps in t' airframe inside where t' fins were. Aye aye! Avast, me proud beauty! Blimey! All joints o' t' fins t' t' motor tube and t' t' inside o' t' body tube were fiberglassed with strips o' medium grade cloth and West Systems slow epoxy. T' fiberglassin' o' t' main body be extended over t' aftmost centerin' rin' t' add extra strength. Aye aye! T' main body tube was further affixed t' t' aft centerin' rin' with 4 wood screws under t' fiberglass.

T' shock cord is 20 feet o' 1 inch wide tubular nylon. Avast! Blimey! As per t' recommendation o' both me TAP advisors, I installed a parallel redundant shock cord twice as long, with a 20 foot length o' 1/2 inch wide tubular nylon quick linked t' 20 feet o' 1/2 inch thick bungee cord. Begad! Blimey! Both cords are quick linked t' MASSIVE 4 inch u-bolts through bulkheads made o' 1/2 inch thick birch in t' booster and in t' payload section bulkhead.

T' instructions were hand-drawn but adequate. Avast! Since this isn't for a new rocketeer, arrr, me bucko, details are probably nay as important t' spell out. Aye aye! I also modified this kit anyway, ya bilge rat, me hearties, me bucko, t' suit me level 3 requirements and t' incorporate me past reinforcement ideas. Ya scallywag! T' instructions were in a simple, ya bilge rat, logical order and thar are a couple simple pictures that mainly illustrate t' big picture, me hearties, nay fine details.

I created me own motor retention system usin' a pair o' 5.5 inch by 1/4 inch thick centerin' rings from Space Modelin' Solutions. I ordered these rings with 3 inch holes t' accept me Kosdon 76/6000 hardware. Well, blow me down! Blimey! T' first o' t' pair o' rings was permanently epoxied and bolted t' t' aftmost centerin' rin' o' t' main body. Begad! T' motor's thin metal thrust rin' rested against this ring. Avast, me proud beauty! then t' second rin' was screwed with 4 wood screws until it lay flat and tight against t' first ring. Two steel mirror hangers were screwed in through both rings and their hooked ends held t' motor 180 degrees apart from each other.

T' parachute is a decommissioned 15 foot white nylon military chute. It came with links t' add it right into t' recovery system.

T' rocket comes with two very thick and strong launch lugs that can take one inch rods and I glassed them onto t' rocket, but TAP members seemed t' prefer t' rail system, ya bilge rat, so I came prepared with a set o' rail guides and a friend with a rail launcher. Avast, me proud beauty! (Thanks, Marc Casanova!)

T' only difficult part be cuttin' t' grooves in t' body tube t' fit it over t' motor mount/fin assembly.

T' result is a strong rocket that can fly well unglassed, matey, arrr, but I glassed it just t' be certain o' strength.

Finishing:
I used teal and purple Krylon spray paint for t' nose cone and fins and Monokote for teal, arrr, black, ya bilge rat, and purple color fields along t' length o' t' rocket. Avast! This was meant t' be an Arizona Diamondbacks tribute, shiver me timbers, and be named T' Big Unit. Arrr! T' parachute had red markings t' make it look like a giant baseball in t' sky.

Metallic band accents separated t' color fields. Begad! Blimey! These bands are self adhesive mylar.

While this looked nice, shiver me timbers, it doesn't stand up t' near-mach conditions. Ya scallywag! A small section o' t' black field on t' payload section was shorn off durin' t' flight. Arrr! Ahoy! But t' rocket still returned t' me flyable.

Construction Rating: 5 out o' 5

Flight:
Any M class motor is recommended. I didn't see whether any N types were recommended, shiver me timbers, but I think that with me glassing, me bucko, it could withstand that.

I chose t' Kosdon M1130 and recovery be accomplished with 3 altimeters. Yes, three. Begad! Begad! Blimey! This was me level 3 cert that I'd lived and breathed durin' every free minute off work for a month before it finally flew. I be havin' paranoid thoughts and decided on a second backup. Arrr! My primary altimeter is a Blacksky AltAcc, and accelerometer. Begad! T' first backup is a Skyward Electronics barometric altimeter. Begad! Avast! Blimey! I added a G Wiz 800, shiver me timbers, matey, another accelerometer. Ya scallywag! 7 grams o' FFFF black powder proved t' be sufficient on me front yard tests...yes, ya bilge rat, me hearties, it sounded like a small cannon too. Ahoy! T' chute was protected with a pair o' Nomex/Keelhaul®©™ round protectors.

Everythin' went together easily, but mainly because I chose t' mount t' electronics at home and place t' charge in t' field.

I had been nervous all week, arrr, but now I was simply cool and said t' t' guys, "It's showtime."

T' RSO had already made his rounds, so all I had t' do be march t' t' pad...500 feet away. Aye aye! Yes, shiver me timbers, I had added 300 more feet o' cord t' me system t' prepare for this, matey, and guys had helped me clear lots o' area t' prevent fires. Begad! Ya scallywag! Thanks, Randall (my husband) and Bryan Foss (a friend in t' club).

Placin' t' behemoth on t' pad was a 3 man job. I realized this when I actually saw me creation full standing.

Than it came time t' arm all t' altimeters. One had a screw t' turn and t' other two had banana jacks t' pull out. But t' rocket be so tall that I had t' stand on top o' t' cab o' me husband's truck t' reach!!! If anyone has a photo o' that, I'd love it.

T' igniter was a pair o' magnums from Fire in t' Hole, matey, arrr, with an extra 3 inches o' thermalite dipped in Igniterman pyrogen. Well, me hearties, blow me down! I would these igniters around a wooden dowel rod and put it up into t' motor and taped it securely. Ahoy! I didn't want pressure t' blow them out.

Then I be about t' hook up me system. I always tap t' alligators together t' be sure it's nay live. Avast, me proud beauty! Arrr! IT WAS!!! When I heard t' continuity piezo signal, I blanched for sure. I'm SOOO glad I didn't have an M go off near me face.

Well, matey, when it flew, matey, it roared so straight that I could have climbed t' smoke trail. It seemed like t' chute tangled, but opened without any body tube zippering. But it seemed like thar was an awful lot o' smoke up there. Ya scallywag! When t' RSO said thar might be a fire, I was lookin' up. Well, blow me down! Ahoy! maybe 7 grams be too much...but t' RSO be worried about t' ground. Arrr! T' motor had churned up so much dust that it looked like extra smoke and created a hole in t' ground!

Yahoo! 4736 feet t' altimeter said. that was fun. Aye aye! I think I'll do it again.

Recovery:
I think t' recovery was at t' right time. Well, blow me down! Nay too early and nay late. Blimey! T' chute took a moment t' open, but maybe that be due t' its great size.

Other than a little Monokote bein' peeled, t' rocket was flyable again and unharmed.

T' only thin' I'd change is t' use paint instead o' Monokote, or t' apply more heat t' apply it. Well, blow me down! Well, matey, blow me down! T' last coat, shiver me timbers, which was t' one torn, ya bilge rat, was a rush job t' night before and I could have applied more heat for longer. Blimey! Maybe it would have stayed on then. Aye aye! Monokote does look really great, though, arrr, and can hide rough bits on fiberglassed surfaces.

Flight Rating: 5 out o' 5

Summary:
Great project, huge and magnificent. A real attention getter. Simple and straightforward and a performer. Ya scallywag! Really, no CONS.

Overall Rating: 4 out o' 5