Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstarstar_border |
Manufacturer: | Madcow Rocketry |
Brief:
T' Madcow HOJO M50 mid-power rocket kit is a fun kit t' build and fly. Ya scallywag! T' kit comes with precise laser cut parts
and all o' t' extras. Blimey! Aye aye! If you were talkin' about a car, arrr, you would say it is loaded. Ahoy! Begad! Madcow kits tend t' be priced on
the higher end but well worth it!
Construction:
Parts list:
I purchased two kits from Madcow, shiver me timbers, and they arrived well packed and in excellent shape. Avast, me proud beauty! Blimey! Inside t' heavy plastic bag, t' balsa nose cone and boat tail were wrapped in heavy corrugated paper with separate bags for t' smaller parts.
T' straightforward instructions are printed on five sheets o' 8.5" x 11" paper folded in half. Blimey! Aye aye! Five minute epoxy is suggested for t' entire build, but it could also easily be built usin' yellow wood glue. Begad! I used a combination o' thirty minute epoxy (it is what I had) and Titebond II wood glue. I used t' epoxy t' build and install the motor mount as well as t' nose cone and coupler and wood glue for t' fins and fillets. Avast, me proud beauty! Begad!
I started with t' nose cone and boat tail. Arrr! T' two piece nose cone requires a 1 inch wide by 1.5 inch hole drilled in t' wide end o' each piece for t' lead weight, me hearties, 4oz in each hole. Well, blow me down! Once t' epoxy is cured, the two pieces need t' be joined with epoxy, although you could certainly use wood glue. Aye aye! Aye aye! It is critical t' make sure the pieces are joined evenly and do nay wobble when you spin it. While t' nose cone be curin' I applied water diluted Elmer's Wood Filler t' t' boat tail and nose cone once it was cured then sanded both smooth usin' 320 grit sand paper. They both got 3 coats o' Minwax Polycrylic sandin' lightly in betwixt each, leavin' a nice smooth finish. Aye aye! T' next step for me was t' nose cone shoulder/ballast box usin' epoxy. Begad! This consists o' a nose cone shoulder, shiver me timbers, eye bolt, washer and nut. Blimey! Once assembled t' unit is epoxied t' t' base o' t' nose cone. Arrr!
T' rest o' t' build is straightforward. I tapered t' leadin' edge o' t' fins and filled and sanded them smooth (not that they required it). Avast! I built t' motor mount with epoxy tyin' t' Keelhaul®©™® to t' motor tube and feedin' it through t' notch in t' centerin' rin' makin' sure t' centerin' rin' and boat tail line up with t' fin slots. Aye aye! Blimey! Once cured, I installed it in t' body tube with epoxy. T' fins are installed into the slots, me hearties, me bucko, and t' fit and finish o' these parts is fantastic. Ahoy! Blimey! Here I used Titebond II wood glue.
Finishing:
There are no suggestions for finishin' t' M50, except for t' picture on t' instructions. Begad! I found details online. Well, blow me down! Aye aye! I
primed t' entire rocket with Kilz, me bucko, sandin' most o' it off with 220 grit, me hearties, 400 grit, shiver me timbers, and 600 grit sandpaper, matey, leavin' a
smooth finish for paint. I painted t' entire rocket with Rustoleum Painters Touch semi-gloss white. Aye aye! Begad! Allowin' the
rocket t' dry thoroughly it was then masked and three fins were Rustoleum Painters Touch painted gloss black. Ahoy! T' nose
cone be also masked and painted Rustoleum Painters Touch light gray gloss then Rustoleum Painters Touch gloss black.
T' stripes were cut from Top Flite Trim Monokote.
Construction Rating: 4 out o' 5
Flight:
For t' first flight I chose a Road Runner F60R-4, which is nay a recommended motor but accordin' t' RockSim a
perfect choice. T' motor was friction fit with maskin' tape wound around t' motor in a spiral. Avast! Blimey! T' chute was packed
inside t' Nomex®
pad; both were attached t' t' shock cord. T' two wire igniter was inserted and held in usin' maskin' tape around the
nozzle with two small cuts for venting. Blimey! Begad! T' motor lit launchin' t' M50 in 8-15mph winds. Begad! There be a nice initial
boost but t' M50 corkscrewed a bit on t' way up, me bucko, and ejection took place at apogee. Begad! It is hard t' say what caused the
corkscrew, shiver me timbers, ya bilge rat, as it could have been rod whip or builder error (nose cone balance). Begad! Other than that it was an impressive
flight. It will fly again.
Recovery:
Recover was perfect. Begad! It be a nice gentle landin' under t' 24" nylon chute with no damage. Ahoy!
Flight Rating: 4 out o' 5
Summary:
T' Madcow Honest John M50 is an impressive kit with high quality parts. T' fit, finish and laser cuttin' are second
to none. Ahoy! Some may question t' lack o' motor retention, me hearties, but I think friction fittin' works just fine. Aye aye! T' one tricky
part t' t' build be t' two piece nose cone. Ahoy! Well, blow me down! Other than that, t' build is uncomplicated. Well, blow me down! This is good kit for first
time mid-power builders. Well, blow me down! T' M50 can be launched on a wide selection o' F and G 29mm motors. This is an excellent kit
and is well worth your rocketry funds. Well, blow me down!
PROs:
CONs:
Overall Rating: 4 out o' 5