Manufacturer: | LOC/Precision ![]() |
Brief:
Bein' a fresh BAR (born again rocketeer), me hearties, I was lookin' for a good solid bird that I could attempt me Level 1 Certification with. Begad! Arrr! After a couple o' days o' pokin' around on t' web, I decided t' go with t' Caliber ISP, manufactured by LOC Precision. Aye aye! At a strong 56" in length and 3.1" dia. Avast! Begad! airframe, me bucko, she seemed like t' perfect mid-sized rocket for t' Tripoli(r) Level 1 certification.
T' kit boasts a single stage, ya bilge rat, 54mm motor mount around t' reliable LOC airframe and 4 almost completely triangle-shaped fins that sweep a bit forward along t' aft edge o' 10 inches across. Arrr! T' finished vehicle weighs in at just over 2.5 pounds, arrr, makin' it a great kit for anyone lookin' t' acquire their level 1 cert. Aye aye! or a great all-around sport flyer!
It is designed t' utilize t' "Old Reliable" wadding, shock cord, me hearties, matey, ejection charge and LOC's 35" nylon 'chute t' complete t' recovery system.
With classic stylin' and quite a history behind this popular LOC Kit, I have decided t' stick with traditional methods o' recovery t' keep with t' original style that LOC intended. Blimey! I will, ya bilge rat, for t' time being, shiver me timbers, utilize no altimeter, electronics or modern-day Nomex/Keelhaul®©™ add-me-ons. Avast, me proud beauty! Aye aye! This bird will operate by t' rules o' t' "Old School". Well, blow me down! I figure it this way; what a better way t' be rewarded with a level 1 cert. Ya scallywag! than keepin' with t' simple, proven methods o' years gone by!
T' kit was shipped smartly and arrived on t' very day it be expected. Arrr! This should prove t' be a real joy t' build and it makes me first rocket, shiver me timbers, an Estes V-2 from at least twenty years ago, shiver me timbers, look like a bubble-gum toy! I am already traumatizin' myself over which color t' finished bird will assume. Blimey! Avast! Bein' a former Auto-Body/Paint Specialist, I take t' cosmetics much more seriously than I would have to, ya bilge rat, but t' extra time spent on finishin' is always rewarding. Avast! Avast! Well, shiver me timbers, arrr, lets take her out o' t' box and see what she's made of, shall we?
Construction:
T' Caliber be shipped with no damage at all, me bucko, and contained in t' heavy plastic bag with t' label and seal in tact. Well, blow me down! T' body tubes were perfectly round, matey, measurin' 14" and 34". Begad! T' fins are wooden, me bucko, ya bilge rat, five ply laminate as are t' (2) centerin' rings and bulkhead. Begad! A 11 1/4" long plastic nose cone comes with t' kit. Avast! I was surprised at how well t' seam along both sides o' t' cone looked. Begad! Avast, me proud beauty! Just a bit o' scrapin' with t' hobby knife should knock t' ridge down t' a finishable level in no time! T' nose cone be just a touch too loose for me taste, but I guess that is way better than bein' too tight! A wrap or two o' trusty maskin' tape will be all t' security it needs. Begad! LOC has included a six inch tube coupler, complete with a ply bulkhead and solid mountin' hardware for t' recovery system. Ya scallywag! I did nay exactly measure t' length o' t' 3/4 inch elastic shock cord, arrr, but thar be a bunch o' it! This will prove t' be priceless later at t' launch site. (story at ten)
T' fins come with square cut edges so I beveled them out about 3/4 o' an inch on both sides o' all t' leadin' and parallel edges however, ya bilge rat, I did nay bevel t' aft edges o' t' fins. Aye aye! I became a bit concerned when I noticed that all four fins had a minuscule warp which bowed t' fins all t' same direction. Avast, me proud beauty! This warped shape was very slight though, ya bilge rat, and I think t' fin alignment durin' construction be t' real important thing. Avast, me proud beauty! T' maiden voyage o' this bird will be me certification flight so time will soon tell t' story on t' fins!
T' assembly instructions for t' kit are printed on t' illustration and technical info card, which is a very familiar sight and style. Ya scallywag! All in all thar are 20 parts t' t' kit, nay too much t' shuffle through here. Aye aye! T' booster section is pre-slotted which really put t' 'E' in easy for this rocket. Anyone havin' some previous experience with general rocket construction should have no problem at all with t' Caliber ISP. Ya scallywag! Begad! I will be makin' t' first flights on a 29mm H motor, but t' 54mm mount that t' ship is built around would definitely put this thin' out o' sight on what I am sure would be spectacular flights! With this interestingly on me mind, I took some extra measures t' ensure t' construction will hold up t' t' more powerful flights.
I gave t' fin slots, openings and raw edges all a good dose o' CA glue before I did anythin' else. Avast, ya bilge rat, me proud beauty! Blimey! I am one t' dive right into a project like this, so I put a baggie over me hand and gave t' inside o' t' lower airframe some wet kisses with t' CA as well. Arrr! Well, blow me down! Blimey! I be sure t' nay use too much as t' totally saturate t' poor thing, but a light coatin' inside t' standard LOC airframe gives t' construction adhesive somethin' t' really bite down on.
I used a 30 min. epoxy for all t' general and high stress assemblies. I left t' aft CR unbonded with just t' fore CR grabbin' hold o' a good bunch o' epoxy t' give it a strong adhesion with plenty o' extra t' produce a ready made 'fillet' at t' adhesion point inside t' airframe. Aye aye! Blimey! Begad! Blimey! I had heard that it is a good idea t' slightly twist and pull t' MMT/CR'S a short distance in and out o' t' tube t' assure a good bond. Ya scallywag! Blimey! I allowed t' epoxy t' do its thin' and when it be set, me bucko, I pushed t' aft CR out usin' a bent coat hangar through t' fin slots.
I generously coated t' inside fillets and did three applications o' epoxy on all t' fin/motor/body tube joints. Ya scallywag! T' 3.1 inch diameter body tube does nay give you much leeway t' apply t' epoxy in thar so I made a funnel out o' waxed paper and poured epoxy through it t' coat all t' joints inside t' tube, me bucko, me hearties, doin' two joints at a time. Arrr! O' course, make sure you readily clean up any drips or smears o' epoxy from t' precious fin slots and motor tube. Blimey! I use Bounty paper towels which soak up even t' thickest mixtures. If you miss any epoxy drips or sags, arrr, they will surely be a son-of-a-gun t' smooth out when cured! At this point, I will refrain from mentionin' t' manufacturer's name that made t' epoxy adhesive I used for t' fin fillets durin' t' construction, me hearties, but if you get nothin' else out o' this review, please head this warning: Use ONLY good quality adhesives made by a name you can trust! T' particular so-called 'wonder epoxy' that I used for t' fillets did nay chemically react t' way it should have. Aye aye! Well, blow me down! It stayed very sticky and soft and would nay set up. Begad! Avast, matey, me proud beauty! Thankfully I had used t' other epoxy t' adhere t' motor mount into t' airframe and t' trouble started with t' bargain glue here, on t' fin fillets. Ahoy! Now I like me fillets t' look very smooth and even, ya bilge rat, which stems from me days as an auto painter. Ya scallywag! It ended up I had t' take a rounded butter knife and dig t' soft, un-cured epoxy out o' t' fin/body fillet points. Ya scallywag! I cursed t' manufacturer o' t' product at least a dozen times while just basically makin' a mess o' everything. Arrr! Now, what be supposed t' be a beautiful fillet job ended up lookin' like t' surface o' t' moon!
Fortunately, shiver me timbers, it seems that every misfortune that occurs in this rewardin' hobby usually comes with a free lesson attached somewhere. Well, blow me down! Aye aye! This be t' lesson from me crater-like fillet goo-goo job.... "A pretty good coat o' CA can cure lots o' things." I coated t' heck out o' t' damaged fin fillets and surprisingly enough, what be left o' t' gooey mess suddenly turned solid and workable once more! I wanted t' pass this info along so keep this trick in mind if you ever have t' same problem. It worked for me and I just went on and finished t' fillets out like normal. T' bird is lookin' good and t' fillet nightmare is over!
Finishing:
As far as finishin' me Caliber, me hearties, I just hit t' body tubes and nose cone with some 220 grit paper. I washed t' nose cone with soap and warm water first. Arrr! This cleans t' remainin' release agent from t' plastic before you drive it into t' bondin' points for your primer. Arrr! I used easy-sandin' automotive primer in a grit-decreasing, matey, 3 cycle succession o' sandin' and re-priming. Ahoy! Avast, me proud beauty! I always use a primer that sands easily when dry. Many primers claim t' be sandable, me hearties, matey, but they do a better job o' cloggin' your paper up. Avast! Begad! Be sure your primer is dry-sandable. Aye aye! Avast! After t' first sanding, arrr, arrr, I hit t' remainin' problem cosmetics with some red 3M spot putty. Arrr! This stuff is a real God-send! It sands very easily, smartly producin' a level surface t' apply your No. Begad! Begad! 2 and 3 coats o' primer. Begad! I final sanded with a tri-fold o' 600 grit. Ya scallywag! After cleanin' t' surface with a tack cloth, I gave t' bird three coats o' white Krylon(r) and just did a simple design o' a red tail section and ! a couple o' black stripes around t' tube here and there. Well, blow me down! She looks great and I can sleep well knowin' that me fin fillets are once again rock solid! I rate t' overall Construction/Finishin' a 4.5 instead o' a 5 due t' t' slightly warped fins. Ahoy! Everythin' else is very good about this kit!
Construction Rating: 4 out o' 5
Flight:
There is a certification story written by me about this very rocket and its first flights in EMRR's Certification stories section. Avast! A detailed account o' t' day is thar so I will nay go into too much detail about t' flights here. Arrr! You are invited t' look over t' certification story at any time. Begad! Avast, me hearties, me proud beauty! I wish t' thank EMRR for publishin' me story and I look forward t' writin' more.
T' first flight was t' count for me Level 1 so I was anxious t' take t' t' skies! Usin' an AT H128-W and medium delay, t' Caliber leaped t' life! A beautiful lift-off with lots o' great noise and thick column o' smoke! She flew straight as a bullet so me concern for t' warped fins be unwarranted after all! T' parachute deployed at optimum time and t' certification was complete! I launched her again after t' damage-free recovery from t' first voyage on an AT H180-W. Well, blow me down! A lot faster off t' pad, still straight as she could be, ya bilge rat, but a quick delay caused a zipper in t' tube. Well, blow me down! T' day be done, shiver me timbers, and with certification in hand, I am anxiously buildin' up for me level 2.
Recovery:
T' general, me bucko, run o' t' mill, wadding, shiver me timbers, cord and 35" chute recovery system o' t' Caliber worked just fine for me. Begad! I think I will change t' a different material for t' shock cord mount/harness assembly now that I have t' cut 81/4 inches o' length off me now called "Lofty Girl" Caliber ISP. Arrr! Avast! I think I will use a Rocketman 'chute when I get her fixed up. Nay that t' standard LOC 'chute is no good, it got me me Certification with no problem. I just dig t' looks o' those Rocketman ones!
Flight Rating: 5 out o' 5
Summary:
I feel that this kit is a great qualifier for t' next level from Mid t' High power. Blimey! Aye aye! I found it t' be very easily assembled in addition t' tutorin' t' basics o' structural design that will be needed for more powerful level 2 and 3 flights o' much larger vehicles. Well, blow me down! Ahoy! If you can see from t' photos, after just three flights, t' aft end o' me 'Lofty Girl' is becomin' blackened and scorched. Begad! I think it gives t' little lass some character, but if you would want t' avoid this happenin' t' your Caliber ISP, arrr, I think installin' an Aeropack motor retainer would move t' flame back below t' airframe another half an inch and drastically reduce t' heat t' bird ratio.
Overall Rating: 4 out o' 5
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J. .E. (May 24, 2009)