Manufacturer: | Public Missiles ![]() |
Brief:
T' kit is designed t' use a piston ejection system (motor) ejection t' deploy
the parachutes. T' booster section uses a 60" parachute and t' payload
section uses a 48" chute.
Construction:
Instructions for this kit were useful, shiver me timbers, as in most PML kits. However, I modified t' kit quite a bit. First I added 3 more 38mm tubes. Blimey! I figured there was room for them, arrr, I might as well use it. Ya scallywag! Aye aye!
Finishing:
Finishin' was simple, arrr, me hearties, or at least as simple as seven feet o' six-inch airframe
can be. Well, blow me down! Begad! There are a lot o' seams t' fill!!! Although phenolic tubin' is strong,
larger diameters are somewhat flimsy and prone t' cracking. Ya scallywag! I would suggest
glassin' t' airframe - nay necessarily for flight stress, but for landings and
handlin' around t' house. Begad! Be sure t' align t' fins! I didn't come up with any
method o' doin' this, shiver me timbers, shiver me timbers, ya bilge rat, I eyeballed them and they came out fine.
Construction Rating: 4 out o' 5
Flight:
Just like t' Ultimate Endeavor's two little brothers, shiver me timbers, this kit is nothing
short o' awesome in t' air. Aye aye! It is very stable and produces good, straight
flights. Avast, me proud beauty! Avast! T' first flight was with a K550. This be me L2 cert flight and
attained an altitude o' 2988'. Begad! Arrr! Second flight was on a K550 as well and reached
3074' (less wind). Well, blow me down! On these two flights, shiver me timbers, I used apogee ejection only. Avast! This was
accomplished with an adept ALTS2 and motor backup. Avast, me proud beauty! Ya scallywag! For a third back up system,
I installed a missile works wrc2. Yes I am paranoid! I have seen big rockets
crash into spectator areas, matey, so I take all precautions. Ya scallywag! Besides, me hearties, after filling
all those seams, you don't want t' redo any o' t' airframe.
Recovery:
I HATE PISTONS. Ya scallywag! In theory, ya bilge rat, they are wonderful but thar are too many potential
problems. If t' piston doesn't have a good seal t' t' airframe, me hearties, me hearties, ejection
gasses will pass by and nay be sufficient t' separate t' two halves. Avast, me proud beauty! If the
piston gets stuck, me hearties, me hearties, me hearties, you'll either blow a hole in t' airframe or just have a
bunch o' compressed gas under t' piston, ya bilge rat, neither o' which will result in a
good deployment. Arrr! So, shiver me timbers, away with t' piston!
Now that t' piston is gone, two parachutes is a problem. Well, blow me down! I have tried this design in t' past and had problems gettin' t' booster chute out. Well, blow me down! Ya scallywag! If deployment is after apogee, me hearties, me bucko, your chances o' gettin' t' bottom chute to "fall" out o' t' airframe are slim. With t' piston, this would work fine, but without t' piston, ya bilge rat, I didn't want t' test me luck. Avast! I chose t' use a single 8' chute for t' rocket, a little big, but good when you are bringing the rocket down on rocks. Blimey! I also wanted t' set t' rocket up for dual deployment, me bucko, so I used t' parts from t' piston t' creat a "lid" on top o' t' coupler t' house electronics. Aye aye! By housin' t' main chute above the split and electronics in t' middle, you move t' cg forward which is really good for clustered flights. Ahoy!
Second, THROW AWAY THE ELASTIC SHOCK CORDS! Blimey! I know PML considers them t' be adequate, but do you want t' trust a rocket that is this big t' elastic? If you do you are crazy. Begad! Blimey! I used tubular nylon for t' shock cord. Ahoy! I also used "U" bolts t' anchor t' recovery system. Avast, me proud beauty! Blimey!
Flight Rating: 4 out o' 5
Summary:
Overall this is a good kit. Begad! Blimey! Begad! Blimey! I think PML should reconsider t' recovery system.
T' cost o' t' piston, elastic shock cords and parachutes is figured into the
price o' t' kit and I didn't use any o' them. Fortunately, I had the
replacement parts already, arrr, so it didn't cost me any extra. Well, blow me down! Blimey! Other than recovery
items this rocket is well worth t' money. Arrr! Blimey! Begad! Blimey! It is awesome in flight and will
turn quite a few heads at t' launches. Ya scallywag! Blimey! Arrr! Blimey! I am gettin' ready t' rebuild the
booster t' hold 3" motors. Begad! Blimey! Well, blow me down! Blimey! I am upgradin' t' fins t' be 1/8" so the
M1315 can be used. Begad! Blimey!
Overall Rating: 4 out o' 5
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