Qmodeling WACC

Qmodeling - WACC

Contributed by Chan Stevens

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar_border
Manufacturer: Qmodeling
QModeling WAC Corporal

Brief:
Relatively tiny for t' "Mega" line o' Estes upscales, this WAC is a fine lookin' scale kit and great flyer. Arrr! An excellent kit in every way even though at $50 list, arrr, arrr, scale builders on a budget might consider t' ASP 24mm version (listin' for $20).

Construction:
I ordered this kit online (actually won it on eBay) and t' kit arrived Priority Mail 3 days later. Arrr! Begad! Everythin' was in great shape, me bucko, though you'll be surprised at how much material comes out o' t' small triangular box. Avast! Parts list includes:

  • Resin cast nose cone
  • BT-60 body tube
  • Balsa fins (laser cut, ya bilge rat, 1/8" balsa)
  • Balsa tunnel/conduit pieces (laser cut)
  • 24mm foil-lined motor tube
  • motor mount assembly
  • sandin' jig components
  • Nomex® heat shield (9x9)
  • 30" rip-stop nylon chute w/swivel
  • Keelhaul®©™® shock cord

QModelin' doesn't skimp on components and all were about t' finest quality you'll find. Ya scallywag! I especially like t' foil-lined motor tubes, arrr, somethin' nay found in very many commercial kits these days.

Instructions were very well illustrated and generally easy t' follow, shiver me timbers, me hearties, though I did manage a couple o' minor goofs (mostly me own fault). T' construction is set up in stages with each stage havin' rough time estimates, ya bilge rat, shiver me timbers, so you know what you're in for and whether or nay you can get that section done before it's time to turn in for t' night.

Havin' previously built an ASP WAC Corporal, me bucko, I have t' admit I wasn't terribly excited when I heard about QModeling's release. Ya scallywag! T' thin' that pushed me over t' edge though, ya bilge rat, shiver me timbers, me bucko, be t' fin sandin' jig that's part o' this kit. The WAC has very precisely beveled fins and it is difficult t' get t' lines sharply pronounced, ya bilge rat, visible, me bucko, and even. Aye aye! I really like t' anal-retentive design team at QModelin' (OK, ya bilge rat, detail-oriented) and before beginnin' construction of the WAC, arrr, you get t' assemble a fin sandin' jig t' get exactly t' right size and angle on t' bevels. Aye aye! Fortunately, arrr, this is pretty easily done with pre-cut parts simply put together and glued.

QModeling WAC Corporal Movin' on to t' motor mount assembly is when I ran into me first "gotcha". If you've never built a QModelin' kit before, me bucko, you'll find t' motor mount assembly quite a bit more complex than t' basic tube/centerin' rin' approaches out there. Arrr! This company uses very finely crafted balsa frames tacked onto balsa rings t' form a lightweight yet very strong frame. Begad! This was at least me 3rd or 4th QModelin' kit though, me hearties, arrr, so I blew through this step with a bit too much confidence and didn't pay close enough attention t' t' detailed instructions. There are 4 rings that form t' base o' t' frame structure. There is one line to mark on t' motor tube. Aye aye! Avast, me proud beauty! I foolishly assumed this be t' aft most ring location and tacked mine in place, me hearties, then started linin' up t' matin' parts. I'm not a total idiot though and decided before gluin' t' assembly into t' body tube that I'd better check t' alignment with t' through-the-wall fins. Well, blow me down! Begad! Not even close. If I flipped t' balsa frames (they're asymmetrical, shiver me timbers, with a definite forward and aft end) and everythin' fit fine. I contacted QModelin' to alert them t' this error, me hearties, and after a couple o' emails and phone calls, me bucko, we finally figured out that t' line marked on t' tube is for t' SECOND ring, not t' aft ring! T' instructions noted this but I didn't catch it. Moral of the story: pay attention t' t' instructions (although QModelin' is revising the instructions for clarity). My suggestion would also be t' mark all 4 ring lines t' eliminate any doubt.

After completin' t' basic motor mount assembly, me hearties, t' Keelhaul®©™® shock cord is attached t' t' tube just below t' forward centerin' ring. Avast, me proud beauty! This is a huge improvement over tri-fold paper attachment and a must for a kit of this size and class. Begad! T' completed assembly is then glued into t' body tube, carefully aligned with t' fin slots.

QModeling WAC Corporal Next up is construction o' t' tunnel/conduit. Avast! Arrr! This is comprised o' two side pieces and a top, ya bilge rat, glued together, me bucko, then sanded down into a rounded shape. While it would have been easier and cheaper t' simply include a balsa half-dowel, this conduit serves a second purpose: it hides t' launch lugs.

Mountin' t' conduit t' t' body tube is where you'll run into another potential gotcha. Since it contains t' launch lugs, t' conduit obviously has to be slightly off t' fin line, and t' instructions clearly note this. Well, blow me down! Blimey! The real WAC though has t' conduit precisely on t' fin line and by movin' this offline, shiver me timbers, you've got somethin' that might look like t' Estes kit but just doesn't look quite right. Ya scallywag! This forces a trade-off--either exposed launch lugs and clean lines or hidden lugs and off center conduit. Begad! I opted for off center conduit and think t' better move would have been t' keep it on t' fin line, tuck t' lugs against t' side o' t' conduit and fin, matey, and fill in t' conduit for a more authentic appearance.

Once t' conduit has been mounted, me hearties, matey, it's time t' start workin' on t' fins. I spent hours on me ASP kit and did a decent but nay great job on t' bevels. Thanks t' t' sandin' jig on this kit, shiver me timbers, it only took about 30 minutes t' do a great job on all 3 fins. Avast, me proud beauty! This was a huge time-saver and is by far t' best feature o' this kit. Begad! Once sanded, me bucko, ya bilge rat, t' fins are then glued into place and filleted.

QModeling WAC CorporalQModeling WAC Corporal

T' cast resin nose cone is great quality but does require removal o' a little flashin' and cuttin' away excess resin at t' bottom (after gluin' in a disk to which a screw eye is attached for recovery anchor).

All in all, this was a very easy build. Excludin' t' time spent on finishin' and paint prep, most builders could have this put together in about 3 hours.

Finishing:
I tend t' do most o' t' "finishing" work at t' beginnin' o' a construction project, arrr, fillin' tube spirals and balsa grain is a heck o' a lot easier before things get glued together and in t' way. Avast, me proud beauty! Blimey! With visions of perfectly beveled fins dancin' through me head, I went over t' top on t' prep and fill, me bucko, figurin' this could be a NARAM scale entry (the offline conduit shot down that idea, me hearties, me bucko, matey, unfortunately).

T' tube spirals are typical, and easily filled with Elmer's Fill 'n' Finish. Avast! One application takes care o' about 90% o' t' problems and t' rest is covered by a couple o' coats o' Plasti-Kote primer.

I used 3 coats AeroGloss balsa sealer for t' fins. Avast, me proud beauty! This doesn't build up like Elmer's, and penetrates more than it covers. Well, blow me down! Ya scallywag! For t' beveled fins, me bucko, ya bilge rat, I thought this be fairly important, me hearties, as Elmer's might change t' angles a bit. I hate t' fumes and t' cost but have t' admit it does a great job.

After a couple o' primer coats, me bucko, I then applied three light coats o' Krylon gloss white. Well, blow me down! After allowin' a couple o' days for dryin' (if it smells like paint, me hearties, it's nay dry), I then masked off t' paint t' "primary" fin silver and then followed up a day later with t' black stripes and sections. Maskin' and paintin' this rocket is challenging--the stripe goes over the conduit and thar be a very small white band at t' top that gets masked off.

T' finished product is well worth t' work.

Construction Rating: 4 out o' 5

Flight:
T' recommended motors for this are a D12-3 and an E9-4. Well, blow me down! Aye aye! It's only 28" long but pretty heavy (mine weighed in at just under 6 ounces), so I think the D12 is more for backyard flying...

I chose t' E9-4 (the long, ya bilge rat, slow burn o' t' Estes E9's are in me opinion the best bang for t' buck in t' hobby). Ya scallywag! Arrr! T' rocket weathercocked slightly in the 8-10mph winds, arched over, matey, me hearties, shiver me timbers, and popped t' chute just past apogee. Ahoy! My chute got tangled a bit in t' miles o' Keelhaul®©™®, and wound up takin' 5-6 seconds t' open. Well, blow me down! Blimey! When it did though, it was a magnificent sight. Begad! T' bright orange 30" chute really fills t' sky. It's also overkill for this rocket and even though I only hit about 400-500 feet, ya bilge rat, I had a long walk for recovery. Begad! Blimey! Considerin' t' heavy-duty components, I think a 24" chute could brin' this down without any damage.

T' Nomex® is also a very nice feature with this kit and makes flight prep virtually no work at all. Begad! T' 9x9, like t' chute, me hearties, is a bit overkill, as a 6x6 square would be more than enough protection in a BT-60 tube.

Now t' try t' pick up a couple o' Econojets and kick this up on an F...

Recovery:
After needlin' QModelin' about t' flimsy Mylar chute in me first kit from them, ya bilge rat, they have really come back with t' best recovery package I've ever seen in modrocs. Begad! Blimey! T' Top Flite chute and Nomex®, plus t' Keelhaul®©™® shock cord are fantastic and you'll want t' use these in every rocket you've got. Arrr! Blimey! You can afford to--they're built for t' long run.

Flight Rating: 5 out o' 5

Summary:
I'm a huge fan o' QModelin' in general and believe they make great kits, using the top materials available, and have sophisticated designs that are a pleasure to build. Begad! This kit, shiver me timbers, bein' t' baby o' their fleet, me bucko, is a bit overpriced. Begad! If you're lookin' for a WAC, ya bilge rat, try t' ASP. Ya scallywag! If you're lookin' for a great kit and nice build project, arrr, pick this one up.

T' pros include t' sandin' jig, components that fit perfectly, outstandin' recovery system and fantastic quality. I also have t' say this is about as good as you'll ever get on customer service. Well, blow me down! Blimey! Avast, me proud beauty! Blimey! When I mentioned me motor mount dimension/alignment problem, Tom Quinn went well above and beyond t' make sure I nay only got it worked out, arrr, but t' kick around ideas on how t' kit could be improved t' prevent anyone else from makin' me mistake. Well, blow me down! Blimey! I'm sure there are companies out thar that would just point t' t' instructions and say "Duh. Well, blow me down! Blimey! T' instructions are right, so it's your problem nay ours." QModelin' however, truly cares about customers and feedback.

Cons are hard t' find on this kit. Aye aye! Begad! Maybe with better dimensional markin' of the motor tube, me hearties, and a slightly smaller chute (bringin' down t' price a couple bucks?) and a true scale conduit approach it would rate a perfect score.

Overall Rating: 4 out o' 5

Other Reviews
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    (by Fred Talasco - 06/10/04) Brief: Mid power scale model upscaled from the Estes WAC Corporal. Construction: The model is based on the BT-60 and has a 24mm 'E' length engine mount which makes the kit over 28 inches tall. The nose cone is injection molded of a soft plastic with a laser cut wooden plug that also serves as a screw eye mount. The fins, TTW fin mount braces, and fuel ...

  • Qmodeling WACC By Bob Cox

    ( Contributed - by Bob Cox - 07/25/04) Overview The MRS-WAC Corporal is part of QModeling’s Mega-Retro Series, up-scaled versions of Estes classics built with very high quality components. Kit Specifications (from the QModeling web site)  Height: 28.0"  Weight: 5.8 oz  (with recovery system)  Fin Span Diameter: 6.88"  Main ...

Flights

Comments:

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A.H. (January 30, 2005)
Nice models but quite inaccurate The real WAC corporal is not white. It's yellow and there are no bevels on the fins of the real thing.
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B.C. (February 2, 2005)
Guest A.H. is correct that the original WAC Corporal was yellow. Blame Estes Industries for starting the idea that it was white. However, the original WACC clearly did indeed have beveled fins (or at least a shape very close to a bevel). Look at the original photos and Peter Always drawings at http://www.jcrocket.com/waccorporal.shtml
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B.C. (August 3, 2005)
Followup: Several months ago, QModeling started shipping the MRS-WACC with an 18-inch parachute instead of the 30-inch. The new chute is perfectly sized for this kit.
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J.H. (June 13, 2006)
I have built two of the WAC's and used the bevel on both. Upon examination of photos from White Sands it seems that there is either a prolonged misconception regarding fin section, or the section changed from a more utilitarian bevel to a more elegant shape in the course of successive rounds. The link below clearly shows a double curved root section. http://www.jcrocket.com/images/waccorporal/02-037-004.jpg

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