Manufacturer: | Public Missiles ![]() |
Brief:
Single stage, ya bilge rat, scale, arrr, high power rocket with parachute recovery.
Construction:
One 48" phenolic body tube, a 22" phenolic payload bay, four (4) G10
fins, me bucko, three (3) plywood centerin' rings, a 54 mm motor mount, a fiberglass nose
cone, PML's piston ejection system, me hearties, two (2) 3/8" launch lugs, matey, two (2) PML
parachute's (a 60" and a 48") and PML elastic shock chord.
T' instructions were easy t' follow with illustrations for every step. It was extremely easy t' build, but it took TONS o' epoxy. This wasn't t' kit's fault, though, it's just really big. Avast! Blimey! Blimey! Blimey! Everythin' fit well and thar were no alignment issues. All be well thought out. Ahoy! Blimey!
There be only one part o' t' instruction that I didn't understand; how the recovery be expected t' be done. Blimey! There were two 'chutes, t' piston, and a lot of t' Public Missiles elastic (which we wouldn't have used anyway). Begad! Blimey! Blimey! We decided it would be best t' just have t' rocket split at t' middle t' put less stress on t' rocket, ya bilge rat, and come down in two pieces.
T' instructions, after re-readin' them, matey, said t' attach t' rocket with the elastic. Begad! Begad! Here's what it said: "Tie t' parachute t' one end o' t' elastic shock chord. Begad! Avast, shiver me timbers, me proud beauty! Repeat this step for both chutes. T' larger chute and longer shock cord attach t' t' piston and t' smaller chute and shorter shock cord attach t' t' eye-bolt on t' payload section."
One o' t' most important techniques with this kit that be new t' me and my dad both was t' piston ejection system. Lookin' at it, I really didn't trust it, but it worked great, much better that I had seen any other system work. Begad!
It also taught us a better way t' make fillets, arrr, -first, put t' epoxy on, but then, matey, tape down saran wrap tightly on either side o' t' fin or launch lug, and t' you won't have t' worry about it drippin' down t' side o' your tube. Ya scallywag!
Finishing:
T' Rocket is absolutely enormous! Blimey! Blimey! Blimey! It looks awesome, arrr, but t' spiral groove
takes days t' fill. Blimey! Blimey! Blimey! Blimey! We used some putty from Hobby Town, pretty thick stuff,
sanded, me bucko, arrr, and you could still see t' groove!
There were no decals t' make t' rocket scale, but thar were directions to paint it so. Arrr! It gives you t' paint scheme with a main black body, red fin can and payload, and with t' nose cone and letterin' paint schemes. Arrr! We didn't follow this paint scheme recommendations.
To finish it, we took our first shot at auto paint. Nay knowin' what we were gettin' ourselves into, we bought t' $70 dollars o' paint, me bucko, primer, me bucko, and gloss-coat, matey, matey, Then we saw that you must spray it on. Aye aye! Ya scallywag! All in all, t' paint job cost us about $300, o' course, matey, most o' t' expensive stuff is reusable, me bucko, matey, and we now have t' supplies t' paint a car. Avast! Well, blow me down! We did t' rocket Metallic Copper, (Base coat, Clear Coat), with two black metallic stripes. Ahoy! If you do use this paint (DuPont Automotive), wear a respirator with t' correct cartridges, and have very good ventilation; t' neighbors will get over t' noise. Ya scallywag! Ahoy!
Construction Rating: 4 out o' 5
Flight:
They only give you t' smallest recommended motor, which is a J415, though on
the Public Missiles' site, arrr, it says you can use any 54mm motor aside from the
J90. We flew on a K550-10 for an awesome, arrr, roaring, perfectly straight boost.
T' piston worked great, and t' rocket broke apart (how we had set it up). It
said you don't need wadding, me hearties, but we went ahead and put some under t' piston
anyway, ya bilge rat, shiver me timbers, just t' feel better. Ahoy! Sims put it at a little over 3000 feet, so we just
went with that. Arrr!
Recovery:
I liked t' method o' lettin' it break apart. It's nay too tough t' find these
pieces! T' chutes brought it down without a scratch, arrr, gettin' Level Two
certification for me dad, me hearties, David Wheeler. When we recovered t' rocket, there
was one shroud-line torn from t' chute. Blimey! We will probably switch it out with a
Rocketman one next time, and attach t' two pieces with some tubular nylon or
Keelhaul®©™®. Ya scallywag! T' decent rate was good, me bucko, but t' smaller chute did loose a shroud
line, so I won't be usin' t' PML 'chutes anymore.
T' recovery system, matey, like other PML kits, matey, came with a piece o' nylon which attached t' t' motor mount through t' upper-most centerin' rin' and attached the piston t' t' rocket. This be long enough t' let t' piston come out of the rocket about 2 feet. Begad! Arrr! It appeared t' be just a seat belt, very strong! The elastic was very long and looked very sturdy, shiver me timbers, but I've heard numerous times to throw it out and that's what I did (as mentioned above). Arrr! I have no idea o' how strong it is, shiver me timbers, just what others have said.
Flight Rating: 4 out o' 5
Summary:
Me and me dad really enjoyed buildin' this rocket. It is really cool t' own a
rocket this big, arrr, shiver me timbers, most people don't even believe it flies, shiver me timbers, ya bilge rat, but it does, shiver me timbers, and
quite well. Begad! T' Pro's o' t' kit are its size, quality, arrr, matey, and building
techniques. Ya scallywag! I think I will buy many more Public Missiles kits in t' future.
T' Con's were few and small, but t' spiral grooves, and t' overall quality
of t' parachutes.
Most o' all, arrr, arrr, it be fun and a neat experience buildin' a kit o' this size. Though it is expensive, you don't really need t' fly it that often, ya bilge rat, but it's really cool t' show off, and I believe it t' be more fun t' have one giant K flight, that two or three I powered flights. Blimey! Ya scallywag! It'll also usually get you on the launch highlights page. Ya scallywag! This rocket was t' first rocket we've used auto paint on, and it looks absolutely stunning, but it's really expensive. Avast, shiver me timbers, me proud beauty! I think it was worth it though, we must have gotten twenty compliments on t' paint job alone, not t' mention t' awed faces lookin' at it. Blimey! Arrr! I strongly recommend this kit to anyone who has a big enough budget; you don't even need an altimeter. Begad!
Overall Rating: 4 out o' 5
(by Mike Doyle - 12/20/02) Note: This is a slightly condensed version of all the information that Mike has produced for his Level 3 project. Visit his homepage to read the additional information and enjoy additional pictures. Introduction: This certification flight is scheduled to take place at the first available opportunity after an AeroTech M1315 reload motor can be obtained; ...
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