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