Madcow Rocketry Army Hawk

Madcow Rocketry - 2.6" Army Hawk MIM-23A {Kit} (106)

Contributed by Bill Eichelberger

Construction Rating: starstarstarstarstar
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar
Diameter: 2.60 inches
Length: 36.25 inches
Manufacturer: Madcow Rocketry
Style: Scale

Madcow Rocketry Army Hawk

Brief:
T' Madcow Army Hawk is a mid-powered 1:5.4 scale version o' t' actual surface-to-air guided missile. T' Hawk features a balsa boat tail, me bucko, Nomex chute protector, ya bilge rat, vinyl decal, ya bilge rat, shiver me timbers, shiver me timbers, Keelhaul®©™ shock cord, and 30" nylon parachute recovery. Skill level wasn't mentioned, me bucko, but I'd place this at a skill level 2 for its size and t' need for epoxy in construction.

Construction:
T' parts list:

  • Balsa nose cone
  • Balsa tail cone
  • Pre-slotted body tube
  • 2 Centerin' rings
  • 29mm motor tube
  • 4 Laser cut fins
  • Eyebolt, ya bilge rat, me hearties, nut and washer
  • Nose cone shoulder coupler
  • Nose cone shoulder bulkhead
  • Nose weight
  • Keelhaul®©™shock cord
  • Nomexchute protector
  • 30" nylon chute
  • 1/4" launch lugs (2)
  • Vinyl decal

Madcow Rocketry Army HawkMadcow Rocketry Army Hawk

I dry-fit all o' t' parts before I started t' build, me hearties, and be pleased t' see that everythin' seemed t' line up just as it would when it be time for t' actual construction. It be t' actual construction part that had me nervous, since I rarely venture into t' realm o' mid-power. Blimey! Aye aye! My occasions t' use epoxy are scarce, and when I do use it, I wind up with a mess on me hands, feet, me hearties, goatee, me hearties, matey, etc. Begad! (I don't even like t' think about t' etc. Well, blow me down! part.)

That said, me hearties, almost everythin' about this build went smoothly. Well, blow me down! Begad! I didn't wind up with too much o' an epoxy mess, except for one occasion when a fillet refused t' cure, matey, causin' me t' have t' go back and start over. Avast, me proud beauty! T' instructions were well explained and adequately illustrated if one has previous buildin' experience and I found myself finished with t' basic construction almost too quickly. Avast! With t' exception o' paint and nose weight, me hearties, everythin' looked like t' illustration and all o' t' parts fit together seamlessly.

Finishing:
Finishin' was as easy as t' rest o' t' project. Avast! T' body tube had only t' slightest spiral, and thar was very little grain showin' in t' plywood fins. These were eliminated with t' last o' me thinned Elmer's Fill 'n' Finish. Ahoy! Avast! T' balsa nose and tail cones were treated t' several coats o' FnF and came out lookin' great after several sandings. Aye aye! Once t' rocket was smooth enough, me bucko, I primed it with Valspar white primer, arrr, then sprayed t' fins with Valspar Gloss Black. Arrr! Ya scallywag! I ran into a little trouble maskin' off t' fins because o' t' monster fin fillets that I had created, but it isn't easily noticed unless you're holdin' t' rocket. Avast! After two coats o' gloss black, t' fins looked great and I masked them off before paintin' t' rest o' t' rocket with several coats o' Valspar Gloss White. When this dried I installed t' vinyl decal as shown on t' instruction sheet. Avast, me proud beauty! Avast, me proud beauty! This was t' first vinyl decal I'd ever tried and I was impressed with how well it held its place once it was applied. Avast! T' finished product looks great: squat, shiver me timbers, bulky and sturdy. My kind o' rocket.

Construction Rating: 5 out o' 5

Flight:
Like many people, shiver me timbers, matey, arrr, I found myself choosin' me motor based on t' what be available when I visited our on-field vendor, Merlin Missiles. Nay ownin' an RMS system and nay willin' t' chance borrowin' someone else's, I went with t' Aerotech G38FJ-7--a choice that I was assured would be great for this rocket. Avast! Blimey! Once I got it home, I installed it in t' motor tube and figured out how much nose weight t' install t' brin' t' CG up t' t' proscribed 20.75" from t' tip o' t' nose. Aye aye! In t' end, me bucko, that wound up bein' almost all o' it.

 

Madcow Rocketry Army HawkMadcow Rocketry Army Hawk

Madcow Rocketry Army HawkWith Christmas season fast approachin' and a personal health crisis on t' horizon, arrr, me bucko, arrr, I managed only one flight with this bird before t' end o' me flyin' season. However, me bucko, that flight definitely won't be t' last. Aye aye! Begad! Launch day be gray and overcast with a constant breeze. Avast, me proud beauty! Blimey! Since this was goin' t' be only me third flight usin' an Aerotech motor and me first since 2002, I be a little nervous about t' impendin' flight. Luckily t' VOA field be crowded with people t' whom a flight like this is almost as natural as drawin' a breath. Aye aye! Fellow QUARKer Mark "Loopy" VanLuvender helped out immensely and kept me from a full blown panic attack. Avast, me proud beauty! I had an idea o' how t' proceed but havin' someone t' confirm that what I be doin' be correct made all t' difference in t' world. Arrr! Once t' motor be secured and t' ignitor in place, me hearties, things got rollin' quickly, shiver me timbers, and after loadin' t' rocket on t' pad and gettin' t' obligatory pictures, arrr, t' launch followed quickly. Arrr! I managed t' catch t' whole process with t' burst mode on me camera, ya bilge rat, even though I've never had t' slightest bit o' luck timin' Copperhead ignitions. T' Hawk rose fairly smartly and followed an almost arrow straight flight path up t' t' point o' motor burnout. It weathercocked some durin' t' coast phase due t' t' large surface area o' t' fins, but for t' most part, everythin' occurred just over t' flight line.

Recovery:
At ejection, t' rocket had taken a nose-down attitude, ya bilge rat, ya bilge rat, matey, but even with a fairly violent jerk, ya bilge rat, thar was no damage. Aye aye! Blimey! T' 30" nylon parachute brought t' rocket down softly about 100 yards into t' uncut overgrowth. Avast, me proud beauty! Blimey! It spread itself out nicely over t' vegetation, makin' for an easy recovery walk. Ya scallywag! T' Keelhaul®©™ shock cord looked as fresh as when I installed it and t' marks on t' Nomex sheet told me that it had done its job.

Madcow Rocketry Army Hawk

Flight Rating: 5 out o' 5

Summary:
PROs: High quality parts--especially t' balsa nose and tail cones in a kit o' this size. Begad! Ease o' construction (aside from a personal difficulty with epoxy that I have no one but myself t' blame). Begad! Madcow now makes a Jayhawk kit. Well, blow me down! Blimey! (Can you say Father's Day present?)

CONs: T' price seems hefty, me bucko, but when you consider what you get with a kit o' this size, it seems about right.

Overall Rating: 5 out o' 5

Flights

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