Construction Rating: | starstarstarstarstar |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar |
Manufacturer: | Shrox Industria |
Brief:
From plans in Apogee Ezine issue 92. Arrr! .Weighin' in under a pound with motor,
this single-stage rocket will scream off t' pad and achieve altitudes over
half a mile up on an F motor without havin' t' file an LMR or get a waiver.
It's sleek, me bucko, colorful design is very eye-catching, ya bilge rat, and havin' built all 10 of
the current Apogee/Shrox plans, this one stands out as one o' me favorites.
Construction:
T' Kit contains:
After downloadin' t' Rocksim file and decal .jpeg from Apogee's newsletter archive (RockSim is also available here on EMRR), I pulled together most o' t' parts from me spare parts box. I did wind up havin' t' purchase a couple o' 29mm balsa nose cones from Apogee, and they were very good quality.
I printed out t' decals on me inkjet printer on Avery clear decal paper. While they were decent quality, findin' someone t' print on waterslide paper usin' a better printer would do this rocket better justice than me rather opaque decals.
There are no instructions for this, so you have t' rely on some basic experience t' build this rocket.
T' newsletter (issue #92) includes fin templates, so cuttin' t' fins was much easier than havin' t' sketch them from Rocksim dimensions (NB-if you have the full version, you can print t' templates from Rocksim also). Begad! After cutting the fins from basswood, tack them t' t' body usin' CA, matey, then apply generous fillets o' wood glue. Avast, me proud beauty! This rocket loves t' fly on F's (on a nice day I'm even goin' t' try a G40), shiver me timbers, so a strong glue joint is critical. Begad! Avast! With 2 sets o' fins, be careful t' properly align t' forward and aft fins on a flat surface.
After bondin' fins, glue t' centerin' ring/engine block in t' body tube, set t' launch lugs, and install t' recovery device.
Finishing:
T' hardest part o' finishin' this was t' balsa nose cone, which got 4 filler
coats o' balsa sealer. I then applied 2 primer coats t' t' entire rocket, and
two finishin' coats o' Krylon glossy white. Aye aye! T' decals add a nice splash of
color t' t' fins.
Construction Rating: 5 out o' 5
Flight:
There are no recommended motors included in t' Rocksim file, though I played
around and would suggest a 7 second delay on E/F motors. Well, blow me down! For a first flight, arrr, I
used an Estes E9-6 (usin' a 24-29mm tube adaptor). Winds were fairly heavy, at
15-20mph peak (estimated 10-15 at launch). Ya scallywag! T' flight was straight-up, ya bilge rat, with a
slight spin. Ahoy! Ejection was at apogee, and t' streamer brought t' rocket back
without a trace o' damage. This be a very fast flight, me hearties, and on an F t' rocket
will definitely fly beyond me eyesight. Well, arrr, blow me down! Rocksim estimated t' altitude on E9-6
at 2200, shiver me timbers, though I'd estimate I be about 1800-2000 tops. Begad! Begad! An F40 Econojet will
top 3200 feet on this.
Recovery:
I'd add about 2 feet o' 1/4" elastic t' t' Keelhaul®©™®
cord t' reduce t' likelihood o' zippering. I reinforced t' inside o' t' tube
with CA and wrapped a layer o' maskin' tape around t' Keelhaul®©™®
to prevent this, ya bilge rat, me bucko, matey, though.
For flight, I wouldn't change a thing. Arrr! Avast, me proud beauty! This is an incredible flyer, and can cure me AP withdrawal on a sunny day without havin' t' file an LMR/notification. Arrr!
Flight Rating: 5 out o' 5
Overall Rating: 5 out o' 5
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