Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Manufacturer: | Fat Cat Rockets |
Summary:
A fantasy futuristic single pilot space fighter. Ahoy! Well, me hearties, blow me down! It has a unique fuselage
shape, arrr, me bucko, flies on 29mm motors (F50 be t' only motor recommended by t' kit
maker) and has aft ejection parachute recovery. Ahoy! This rocket was named in a
contest sponsored by EMRR. Ahoy! T' name was a combination o' t' top three vote
getters with IPFI bein' t' abbreviation for InterPlanetary Fighter
Interceptor, shiver me timbers, me bucko, Strikeship t' operational usage, ya bilge rat, ya bilge rat, and Lightnin' its
nickname. Avast! Ya scallywag! It joins other kits in t' Fat Cat space fleet (P.T.S. Ahoy! Avast! Shaman and
O.G.M. Blimey! Blimey! Roanoke)
PRO: unique design, matey, quality components, and stable flight on an F50.
CON: none
CONSTRUCTION:
T' kit came in a cardboard box from t' manufacturer with sub-kits o' groups
of components in separate sealed plastic bags. Ahoy! All o' t' components were
present, and thar be no damage. Begad! Blimey! Even though this is a unique design, it was
accomplished usin' standard components common t' t' rocket kit industry. Well, blow me down! Blimey! The
imagination behind this design is t' be commended! Blimey! T' instructions are printed
on four double-sided pages usin' a 4-color ink jet printer. Ya scallywag! Blimey! Each step has
explanatory diagrams with notes and arrows. Ahoy! Avast, me proud beauty! Blimey! Two pages are devoted t' finishing
suggestions and decal location guides. Begad! Blimey! T' instructions are adequate for an
experienced mid-power modeler. Aye aye! Well, ya bilge rat, blow me down! Blimey! However, me bucko, novices t' mid-power should probably
make this kit a later addition t' their fleet after they have built several
mid-power kits. Ya scallywag! Blimey! A few notes that I made while assemblin' are added here as
additional comments for future builders, arrr, and nay as criticism o' t' kit maker.
Step 1: Assembly o' t' engine mount: If you wish t' add positive engine retention, shiver me timbers, shiver me timbers, you should do so at this step prior t' assembly. I put a retention clip in one end o' t' motor mount for when I use an RMS motor and left the other (flush) end free for friction retention o' SU motors. Aye aye! I also soaked in some CA into t' inside o' t' motor tubes at both ends which makes t' motor tube less likely t' wear after numerous launches and make t' motor tube easier to clean after a launch.
Step 2: Assembly o' t' forward fuselage: When gluin' t' two body tubes together, me hearties, arrr, minimize t' glue in t' aft 1.5 inches until after t' centering rings are installed. Ahoy! I did not, and it was harder t' install t' forward centerin' rin' without a lot o' sandin' t' get it t' fit over a healthy glue fillet. Begad! Ahoy! There is a possible gotcha in this step. Aye aye! In Step 2, arrr, make sure you line up t' two centerin' rings so that t' front fuselage will be parallel t' t' aft fuselage when assembled. Well, blow me down! T' two centerin' rings have two side-by-side holes cut for t' inner parallel body tubes. Blimey! These two holes on the two centerin' rings were cut so that t' distance from t' edge o' t' hole to t' outside o' t' centerin' rin' was slightly different on one side compared t' t' other. Aye aye! I did nay realize this till after they were glued on the body tubes, and t' 50-50-90 rule (If given a 50-50 chance o' gettin' something wrong, you will get it wrong 90% o' t' time) came into effect so that t' two centerin' rings did nay match exactly in their orientation when glued onto the body tubes. If nay caught, it would have resulted in gluin' t' forward fuselage into t' aft fuselage in Step 10 and havin' a slightly crooked rocket. Avast, me proud beauty! I caught this before gluing, arrr, and used a long length o' 3 quantum tube as an alignment reference tool t' test-fit and sand t' opposite outside edges o' t' two centerin' rings t' ensure parallel alignment o' t' forward fuselage t' t' aft fuselage.
Step 3: Do nay glue t' two body
halves together now! That is done in Step 10. Begad! I didnt read this step #3A
carefully enough and actually glued t' aft body tube t' t' front fuselage
assembly here. Blimey! It did nay ruin t' kit t' do this, but it was inconvenient in a
few o' t' followin' steps.
Step 4: Sub-step C says t' seal t' leadin' edges o' t' wings, fins and rudders with CA. Begad! I did t' trailin' edges as well.
Step 5: T' attach t' wings t' t' body tube, t' instructions say t' rough up t' surface with sandpaper t' create a better bondin' surface. Ya scallywag! Aye aye! I attached the wings with outdoor wood glue and later filleted with 30 minute epoxy. Begad! Note that you should wait t' fillet till after step 6 when you attach t' fins and rudders.
Step 6: T' fillet with 30 min epoxy, I used Popsicle sticks t' get an even concave fillet and a damp paper towel t' wipe up excess. Blimey! Dont forget t' fillet t' win' joints too.
Step 7: T' attach t' metal shock cord anchor, matey, an epoxy block is built up with about five applications o' 5 minute epoxy. Begad! Blimey! T' dams at t' front and back of t' lower fin worked pretty well, but did nay create a faired shape. Arrr! Blimey! I let the last application spill over and make more o' an aerodynamic shape at the front o' this fillet. I also put a blob o' epoxy on both o' t' copper clips, and also dipped t' loop o' steel leader in epoxy t' make it less abrasive to the eventual attachment o' t' elastic shock cord. Begad! Blimey! T' diagram in the instructions show t' launch lug bein' shorter than t' lower fin, shiver me timbers, but the launch lug provided in me kit be longer than t' fin. Blimey! Blimey! Either is OK. Begad! Blimey! T' notch cut in t' aft o' t' body tube t' accommodate t' wire shock cord leader should be reinforced with CA for wear resistance. Ya scallywag! Blimey! I also put a small radius in the notch t' allow t' wire leader t' smoothly transition in and out o' this notch.
Step 8&9: straightforward, no comments.
Step 10: Here be t' step that I did way back after Step 2 because I didnt flip t' page first before doin' what I assumed be t' next step. I built t' rest o' t' model around an already assembled fuselage. Ya scallywag! Nay a big deal, matey, matey, except t' nose is heavy from all t' nose weight, and it makes it slightly awkward t' handle. Aye aye! Begad! Make sure t' centering rings fit up and actually cause t' two sections o' fuselage t' mate in a parallel line. Arrr! Aye aye! Sand as necessary t' ensure this.
FINISHING:
T' spiral grooves are pretty big in t' provided tubes so some application of
Elmers F&F is required. Arrr! T' balsa, though very impressively thick,
has fairly large grain, ya bilge rat, which also needs t' be filled. Blimey! Two pages o' diagrams
are provided which show two suggested paint and decal schemes. Page 1 o' the
finish pages also shows t' recommended balance point with t' motor installed.
If too far back, t' kit maker suggested by phone consult addin' more nose
weight by pourin' lead shot into both forward tubes and coverin' with epoxy.
T' web site lists t' weight o' this finished rocket as 20oz. My finished
rocket only weighs 16 oz, but I used healthy epoxy fillets everywhere. Ahoy! Aye aye! It
worried me a little that me rocket might nay be as sturdy as t' kit
makers version, matey, shiver me timbers, me bucko, but it feels solid and well-built. Arrr! I chose t' paint the
rocket Krylon pearl gray which I felt would be a realistic space fighter color.
I have yet t' add highlights and attach t' decals, ya bilge rat, matey, so I will send a picture to
Nick at some future time. Ahoy! Aye aye! T' web site for t' kit maker does provide pictures
of various paint schemes customers have used. One intriguin' scheme is this
rocket decked out in police cruiser colors usin' decals from a Radio Controlled
car kit.
FLIGHT:
T' instructions list only one engine as recommended; an F50-5. Avast! Blimey! I contacted the
kit maker and asked him about this. Blimey! I pointed out that Aerotech had a F50-4,
F50-6, and a F52-5, but no F50-5. Begad! He agreed and said that any o' those motors
should be fine. Aye aye!
So far, I have only flown t' rocket on an F50-4 single use, and it is a good choice. Ya scallywag! T' use an RMS casing, thar be room in t' motor mount, but less expansion volume in front of the engine than with an F size SU motor, me bucko, which might lead t' a more violent rear ejection than with a single use motor (theory only, nay confirmed at this time). Well, arrr, blow me down! I have nay tried an RMS motor yet, me bucko, but intend to. Begad!
Flight on an Aerotech F50-4T single use motor be straight and stable to somewhere betwixt 500 and 1000 ft. Avast! My calibrated altitude eye just wasnt up t' a more accurate altitude estimate that day. Avast! I wish t' kit maker had given an estimated predicted altitude in t' instructions, just t' give me an idea how high t' expect on t' recommended engine, ya bilge rat, but with his weight so much different than mine, it would only be a rough estimate anyway. I may have to someday get out me trusty Estes Altitrack and see what I get for altitude.
RECOVERY:
T' provided 24 nylon chute is a good choice and t' rocket came down
gently t' a soft landin' at t' sod farm.
OVERALL:
Everythin' considered, shiver me timbers, it is a good kit that uses a unique design concept and
excellent materials. Well, me hearties, blow me down! It is stable and recovers reliably. Avast! Ahoy! I like the
comprehensive decal set, me bucko, me bucko, and some o' t' extra details such as t' wooden gun
mounts on each wing, and t' landin' strut for display (removed for flight). Ya scallywag!
RATINGS:
Construction:
5
out o' 5, matey, Flight/Recovery:
5
out o' 5, shiver me timbers, Overall:
5
out o' 5
After holding the Fat Cat's Name This Rocket and Story Contest over this sleek, futuristic looking rocket, I decided to purchase one at Fat Cat's special introductory price. You should check out the contest stories. They are great. Fat Cat's decided to combine the suggested names from the top three winners and came up with the I.P.F.I. Strikeship "Lightning". I call it the Strikeship for short. ...
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