Construction Rating: | starstarstar_borderstar_borderstar_border |
Flight Rating: | starstarstarstarstar |
Overall Rating: | starstarstarstarstar_border |
Diameter: | 2.60 inches |
Manufacturer: | Qmodeling |
Style: | Futuristic/Exotic |
Brief:
QModeling's Mega-Retro Series (MRS) Hawkeye is a kit for buildin' a 4.78x
upscale o' t' classic Estes Hawkeye. Begad! Standin' over 43in tall, this BT-80
monster is huge compared t' t' 1/2A original. Aye aye! Our finished kit weighed 16
ounces. Many o' QModeling's MRS kits would probably appeal t' 24mm enthusiasts
who want t' fly big, me bucko, lightweight rockets low and slow. This kit is also special
because apparently only 75 kits (in t' BT-80 size) were planned for
production.
My kids and I won t' Hawkeye in a EMRR contest. Blimey! Blimey! Especially for a small company like QModeling, matey, their prize donation is a significant outreach which I think reflects very highly on them, and I hope it attracts lots o' new customers. Begad! Blimey! Avast! Blimey! They deserve a lot o' credit for supportin' EMRR and t' rocketry community in general.
Construction:
T' kit was well packaged, and no parts were missing. Aye aye! Blimey! There are 25 pages of
instructions, shiver me timbers, ya bilge rat, me hearties, includin' several color diagrams t' guide finishin' and decal
placement, shiver me timbers, and dozens o' assembly diagrams. Begad! Blimey! T' manual is organized by
subassembly (motor assembly, body and fins, finishing, and recovery system)
with estimated times for each. Well, blow me down! Blimey! T' instructions particularly emphasize
lightweight buildin' techniques, ya bilge rat, perhaps nay only t' promote craftsmanship but
also because a 24mm motor in this bird doesn't have much power t' spare. As a
skill level 4 rocket, it took us some time t' finish assembly but nothin' was
difficult. Avast! Blimey! I appreciated t' level o' detail in t' instructions and their
positive tone which included encouragements, ideas for enhancements, and praise
for steps completed.
T' first subassembly be t' motor mount and aft body tube. Ya scallywag! Blimey! Ahoy! Blimey! Blimey! Blimey! Here you assemble an unusual balsa frame around t' motor tube like a 3-dimensional jigsaw puzzle. Arrr! Blimey! Ya scallywag! Blimey! Blimey! Blimey! Then this assembly is glued inside t' slotted aft body tube. Ahoy! Blimey! Blimey! Blimey! Each balsa piece is flimsy but thar are so many interlockin' joints, ya bilge rat, matey, I suspect t' final result will be adequately strong.
Next we assembled t' fins then beveled and sealed them. Avast, me proud beauty! For simplicity, we beveled only t' leadin' edges, leavin' outside and trailin' edges flat. Ahoy! Ahoy! We also did nay taper t' thickness as suggested in an optional step in t' guide.
T' third portion o' t' instructions addresses attachin' t' fins t' the body. After gluin' t' aft and central body tubes together, ya bilge rat, matey, t' fins get glued on. Begad! T' four main fins fit nicely into t' slotted body tube with interlocking notches from t' motor mount balsa frame providin' additional contact points. T' root tabs on t' fins pass through t' tube slots and notch into t' frame, but they do nay make contact with t' motor mount tube. For the "raceway", me bucko, I reshaped t' end t' a parabolic point t' get a form more pleasin' t' me eye.
Positionin' t' fins revealed a glitch in t' instruction manual. Begad! T' last page o' instructions includes a cutout wraparound fin guide t' mark alignment lines on t' tube, ya bilge rat, shiver me timbers, me bucko, along with instructions for its use. Well, blow me down! Begad! I dutifully cut out this template but found it t' be way too small. Avast, me proud beauty! I enlarged it t' 149% on my copier in order t' get a perfect fit. Aye aye! Begad! Later, shiver me timbers, I found that t' QModelin' website has a downloadable manual with t' correct sized template on t' back o' the page I cut. T' manual in me kit did nay include this.
T' engine pod tubes are easy t' attach next. Ahoy! One o' me pod tubes was 3/32" longer than t' other. Begad! Ahoy! It also had sharp grooves cut in t' tube surface near one end, shiver me timbers, spiralin' about 8-10 times around t' tube as if a tube cuttin' device had malfunctioned. Blimey! I trimmed this tube t' t' correct length and filled in all t' surface damage.
T' remainin' assembly steps are pretty familiar: nose cone, launch lugs, etc. Arrr! Avast, me bucko, me proud beauty! A spare centerin' rin' is inserted partway down t' body tube t' form a "parachute compartment". Begad! Blimey! There is a washer for nose weight and the usual recovery systems (30" nylon parachute) t' assemble. Well, blow me down!
Regardin' nose weight, shiver me timbers, I found a serious problem. Avast! Blimey! T' instructions stated that I should add clay t' t' nosecone t' ensure that t' center o' gravity (apparently with no motor) is 6-9 inches "from t' Primary Fins". There is a figure t' illustrate t' 6-9in range. T' problem is that t' figure and instructions are unclear and nay consistent. Blimey! T' two sets o' primary fins ("stabs" and "wings" in their terminology) extend different distances up t' body. Blimey! Aye aye! Blimey! Does t' 6-9in measurement begin from t' top, me hearties, me bucko, center, or bottom o' t' fins, and from which fins? From t' figure, arrr, one can infer that measurement must be relative t' a "stab" fin, and me readin' o' their language would be that "from" means "from t' forward edge". Ya scallywag! Blimey! However, t' figure shows t' measurement beginnin' at some vague point about 20% down t' root length o' t' fin. T' figure also shows the intended CG about 0.75in above a body tube seam. Arrr! Begad! Blimey! (This distance is inferred because t' 0.75in measurement is given in an earlier step for placement o' the small fins). Begad! Blimey! However, this CG location is nay nearly 6-9in from t' front (or 20% down) o' a stab fin. It is perhaps 9in from t' center o' t' primary stab fin root. Thus, measurin' 6-9in up in any attempt t' mimic t' figure would yield a CG point much further forward than suggested by t' figure. Begad! Arrr! Blimey! I decided to ignore t' "6-9in" number altogether and simply ensure that t' CG fell about where shown in t' figure.
Finishing:
Findin' t' gray/white stock paint scheme a little dull, t' kids opted for all
silver. T' decals are large, sturdy, and highly adhesive. Ahoy! Unfortunately, matey, one
of t' main win' decals is printed backwards. Avast! In a thread on T' Rocketry
Forum, ya bilge rat, shiver me timbers, me hearties, QModelin' suggests a way t' apply it upside down with white glue.
Instead, shiver me timbers, shiver me timbers, I cut t' offendin' sticker in such a way that it could be reassembled
in t' correct orientation, arrr, in two parts.
Pros: lightweight parts, some unusual design elements, thorough instructions, and opportunity for careful craftsmanship
Cons: one serious error in instructions, one missing/wrong-sized template, one decal misprint, me bucko, one part needed minor repairs.
Construction Rating: 2 out o' 5
Flight:
Only one engine is unconditionally recommended for t' MRS Hawkeye: t' F21-6W.
I think F21 motors are OOP and I had great difficulty findin' a couple of
F21-4W t' buy. Ahoy! Qmodelin' also writes that one could use a E9-4 but only if the
launch conditions are dead calm, ya bilge rat, t' rocket is very lightly built, me bucko, ya bilge rat, and a 6-foot
launch rod is used. Thus, me hearties, it is a real problem findin' a suitable 24mm motor to
fly this rocket.
With our first F21-4W ignited, Hawkeye rose up into t' sky amid a torrent of smoke and flame. Avast, me proud beauty! Expectin' very low and slow, I be surprised as Hawkeye jumped off t' pad and accelerated into t' sky with a loud, straight boost to perhaps 800 feet. T' delay was a tad short with ejection just before apogee. T' chute filled nicely and set t' rocket down gently and undamaged. I like slow descents, and t' chute seems t' be one o' t' very best aspects o' this kit.
T' second flight on F21-4W was just like t' first: a thrillin' fiery shot up t' perfect deployment and gentle landing. These flights were t' highlights of a long day o' launching...this bird is meant t' fly! I'm goin' t' try to gobble up some more high-thrust mid-power motors and take Hawkeye out again soon. Begad! Ahoy!
PROs: fantastic flights on F motors
CONs: currently difficult t' find any suitable motor t' fly
Flight Rating: 5 out o' 5
Summary:
This is a tricky rocket t' rate. Blimey! Construction glitches and a scarcity o' usable
motors are clearly drawbacks, me bucko, me bucko, shiver me timbers, but these were all easily overcome in my
experience and could nay detract from an absolutely fabulous flight experience.
Overall Rating: 4 out o' 5
Gregory A Henderson (December 3, 2022)
I was looking at rocket kit reviews and saw that you had a QMODELING HAWKEYE in 2008. Sadly, i didn't get that kit before the company got flooded and they never made it back.
Do you still have that built rocket? I would pay a good price for it, even if it needs rehab.
Gregory Henderson
NAR58651
TRA 3370