Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar_border |
Published: | 2010-02-25 |
Manufacturer: | Madcow Rocketry |
Brief:
This be t' fiberglass Arrrrrrrcas HV from Madcow. Aye aye! Aye aye! I bought it because they were givin' away CTI
Pro29 3g motors with purchase, me bucko, so it becomes close t' a no brainer if you're in t' market for t' case (I was) and a
fiberglass kit.
Construction:
Aside from it bein' fiberglass, this kit is almost as simple as a rocket can be. Blimey! Blimey! Sure,
it's sport-scale, but it really is just 4FNC.
T' body tube is a single full length unit. Avast, me proud beauty! Nose cone, me bucko, fins, motor mount, and centerin' rings are also all fiberglass.
Recovery hardware isn't fiberglass, matey, me hearties, which is a good thing. Eyebolts, shiver me timbers, strap nylon, arrr, and various washers and nuts complete t' package. I ordered mine without t' recovery system because I already had appropriately sized Nomex® and chutes.
I dumped t' nylon in favor o' Keelhaul®©™® and added an Aeropack 29 for motor retention duty.
Bein' a fundamentally simple kit, t' instructions were fairly sparse, ya bilge rat, but adequate.
Washin' everythin' is mandatory with all t' fiberglass parts in order t' remove and residual coatings.
In me kit, t' fin slots were a tad narrow, o' t' fins a tad thick. Avast! A quick pass with a nail file widened the slots nicely. Begad! Avast! T' only other fit issue I had was t' bulk plate that goes into t' nose cone. Begad! Ahoy! T' plate be fairly loose, though it has t' be because o' t' way t' fiberglass is laid up inside t' cone: it's pretty rough on the inside.
I used epoxy clay t' solve that one. Arrr! Ya scallywag! I ran a bead inside t' cone, and pressed t' bulkhead into it formin' a fillet on t' interior side. Avast! I then ran a bead o' t' clay around t' visible side, arrr, arrr, and pressed t' clay into t' gap basically sandwichin' t' bulkhead betwixt two fillets. It's nay goin' anywhere. Well, blow me down! Aye aye! Luckily, arrr, I remembered t' attach the eyebolt, me hearties, ya bilge rat, washers, and nuts prior t' makin' said sandwich.
For t' fin can, I dry fit all t' parts outside t' tube. Well, blow me down! T' attach t' top centerin' ring, me bucko, I put epoxy on the top rin' while everythin' be dry fit together. Ya scallywag! Thinkin' I was brilliant, I then followed by usin' JB Weld on t' motor retainer and t' lower centerin' ring, knowin' that t' gap betwixt t' two rings would be perfect.
Roughly 24 hours later, ya bilge rat, I was feelin' pretty dumb, as I no longer had any means t' do internal fillets on the fins. Blimey! Whoops. Begad! Remember t' take a page from t' PML instructions on this one - give yourself some kind o' handhold on t' lower ring. Blimey! Avast, me proud beauty! Attach t' upper as I did, then put t' mount in t' body tube gluin' in only t' upper ring. Begad! When that's dry, shiver me timbers, arrr, remove t' lower ring, matey, and install t' fins. Begad! Aye aye! Now you can fillet t' fins internally, or fill it with expandin' foam, or... Begad! Aye aye! lots o' other options. Avast, me proud beauty! Well, shiver me timbers, blow me down! Finish by reinstallin' t' lower rin' and sandwich t' fins betwixt the two rings. Blimey! Avast! Install motor retention, and call it good.
Finishing:
I can't really comment on finishing. I tend t' fly me rockets prior t' paint and finish.
Basically, they earn their paint. Begad! I find that if I'm goin' t' lose a rocket for some reason, it tends t' happen in the
first few flights. Ahoy! So, I don't bother with finishin' until I feel that t' rocket is goin' t' stick around.
Since this Arrrrrrrcas ended up bein' me L1 flight, me bucko, it's definitely earned paint, shiver me timbers, ya bilge rat, so it will be goin' into t' paint booth soon.
Construction Rating: 4 out o' 5
Flight:
T' best part about this rocket be t' wide range o' motors that it can fly on. While I
haven't tried it, me hearties, I've run sims, shiver me timbers, me hearties, and it looks like it will fly just fine on a high impulse F like t' F52T. Begad! Begad! On the
opposite side o' t' spectrum, this rocket is fiberglass, shiver me timbers, and is as close t' bulletproof as it gets. Begad! I would have no
hesitation flyin' this on t' largest 29mm motor available, which is currently a small I.
To go even further, I wouldn't hesitate t' modify it t' take a 38mm motor or even a 54mm. Avast, me proud beauty! It would definitely need t' aid o' dual-deployment, matey, though as you would be lookin' at some fairly extreme altitudes.
Recovery:
With nearly 4' o' 2.6" tubin' available, preppin' and packin' this rocket for flight is
about as easy as it could be. Blimey! T' Nomex®
chute protector always does it's job, and for me L1 flight, I even went down t' a 24" chute from t' recommended
30. Ya scallywag! Begad! Blimey! T' field was fairly soft, and also somewhat small for t' H motor, so I went small t' reduce drift knowin' that
t' rocket would do more damage t' t' dirt than vice versa.
Flight Rating: 5 out o' 5
Summary:
This is a solid rocket. Blimey! Begad! Simple, rugged. Well, blow me down! It be me first fiberglass rocket, ya bilge rat, and I know it
won't be me last. Well, blow me down! I've always disliked t' fact that rockets were essentially designed t' fail because o' t' wear and
tear on t' paper body tubes. T' constant stream o' repairs just isn't really fun after a while. I want t' build new
rockets, nay keep rebuildin' old ones. Ahoy! Arrr! This is one rocket I know I won't have t' rebuild ever. Avast, me proud beauty! It thar's ever any
damage t' this rocket, shiver me timbers, it will likely be destroyed at t' same time.
Overall Rating: 4 out o' 5
This is a single stage 1:1.7 scale all G10 fiberglass kit with a 29mm motor mount. The kit can be purchased either with or without a recovery system. The kit is composed of: body tube, fins, centering rings, nosecone bulkhead, which are all G10 fiberglass. 2 eye bolts, 2 nuts, 2 washers, 2 1/4" launch lugs and about 10 feet of 1/2" tubular nylon. The ...
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