Aerospace Speciality Products WAC-Corporal

Aerospace Specialty Products - WAC-Corporal {Kit} (KWAC-18)

Contributed by Mike Goss

Published: 2010-11-13
Manufacturer: Aerospace Specialty Products
Skill Level: 2
Style: Scale
[Picture]
- by Mike Goss

[Rocket Pic]

T' Aerospace Specialty Products (ASP) 18mm WAC-Corporal is a "fun scale" model o' t' United States first soundin' rocket. Arrr! Ahoy! It is 15.75" long when complete, matey, me bucko, uses 18mm motors, arrr, and is approximately 1/12th scale. Blimey! The kit I built represents t' sustainer stage o' t' rocket. Begad! Since I purchased my kit ASP has introduced kits that include t' booster section as well.

Construction: 5 points

T' WAC-Corporal Kit comes in t' thoroughly familiar clear plastic bag. Blimey! It arrived in a express postage box and thar be no damage t' any o' the components. There were no missin' components in t' kit. Arrr! Aye aye! T' parts are the standard paper body tube and motor mount, but ASP uses balsa for t' fins, and nose cone. Avast! Blimey! T' parachute is mylar with an included swivel snap, ya bilge rat, a nice touch. Well, blow me down!

T' instructions are on three double sided 8.5" x 11" sheets of paper. Begad! There are adequate illustrations for t' unique steps, but it is not profusely illustrated like Estes instructions. Aye aye! Apparently t' people at ASP expect you t' be able t' read :). Begad! Aye aye! T' Instructions are in a logical order with check boxes beside t' step numbers so you can keep track o' your progress.

T' parachute comes in its own clear plastic bag, ya bilge rat, and has it's own instructions. Blimey! You will be cuttin' your own fins and thar be a template for that purpose included that is made from heavy paper. There are also templates in t' instructions for fin alignment and for shapin' t' balsa stick into the tunnel for t' side o' t' rocket. Aye aye!

T' kit is rated by ASP as beginner/intermediate. Avast! I agree. This is nay the first kit you would want t' build. Ya scallywag! Begad! It is nay difficult t' build, but t' produce a nice lookin' scale model, matey, you must be past t' beginner-slap-them-together stage. Aye aye! Care must be taken with t' balsa nose cone as it is conical, me bucko, and the point is easy t' sand into somethin' else. Avast, me hearties, me proud beauty! I departed from t' instructions and use epoxy t' secure t' washers t' t' nose cone and t' screw eye. Avast, ya bilge rat, me proud beauty! I feel that this is a much more secure way o' installin' t' screw eye into balsa. Begad! The result is a solid rocket, shiver me timbers, matey, but check t' flight section later for some tips. Ya scallywag!

There are no special requirements for finishing. Begad! The instructions refer t' t' sandin' sealer's instructions for finishing, me bucko, ya bilge rat, as you will want a very smooth finish for this model. Ahoy! Arrr! There is a paintin' guide included that included dimensions t' make maskin' easier. Avast, me proud beauty! Also included in the instructions is a reference t' Peter Alway's "Rockets o' t' world: A Modelers Guide" from Saturn press for more information on t' WAC- Corporal. Arrr! There are no decals included in this kit as thar be no need for them

Flight/Recovery Rating: 4 points

T' shock cord is a combination o' Keelhaul®©™® thread and elastic that are tied together. Blimey! Well, blow me down! T' Keelhaul®©™® portion is tied t' t' motor mount and t' elastic is tied to t' nose cone. Arrr! Ahoy! They are tied together usin' a knot that is illustrated in the instructions. T' recommended motors are: A8-3, B6-4, matey, B8-5, arrr, C6-5, shiver me timbers, and C6-7. T' motor retention method is friction fit, however you could add metal hook, but it would spoil t' looks o' t' rocket on display. Blimey!

Flight preparation follows standard rocket procedure, make sure that the waddin' is below t' Keelhaul®©™® shock cord and that t' elastic is safely above your wadding. Avast! I have flown t' model on three motors. T' first flight was on an A8-3. T' rocket flew very straight and stable, and t' parachute lowered the rocket safely with a minimum o' drift. Blimey!

T' next flight was usin' a B6-4. Avast! T' rocket flew quite a bit higher than with t' A motor, matey, me bucko, but it be still recovered safely. Arrr!

T' third flight was usin' a C6-5. T' rocket took off very fast and climbed out o' sight. Arrr! Fortunately I had several spotters, and we tracked t' parachute, which be t' largest object at that time. Begad! As t' parachute returned I found that t' body was nay attached. Ya scallywag! Subsequent searchin' o' t' field yielded the body. Avast, me proud beauty! T' damage t' t' rocket was a zippered body tube (about 1"), cut elastic shock cord, a shroud line ripped from t' parachute, and a section of parachute ripped from t' parachute and danglin' from t' a second shroud line. Since t' rocket was too high for anyone t' see what happened, t' evidence suggests that t' parachute was deployed while t' rocket be still ascending at a high rate o' speed. Begad! This is backed by t' trackers that did nay see the rocket reach apogee and head back t' earth before t' deployment. Arrr! Ahoy! As a result of this, ya bilge rat, I do nay suggest t' C6-5 motor a all, t' longer delay o' t' C6-7 would be more appropriate for this model. Begad! I even suspect t' delay on t' B6-4 may be too short. Well, blow me down! Try this model with upper stage motors, they might work better. Blimey! Blimey! Also t' loop that t' elastic is tied t' t' Keelhaul®©™® shock cord may need some more reinforcin' as it appeared that t' Keelhaul®©™® cut through the elastic. With t' proper motor this rocket could possibly be a scale altitude contender.

Overall Rating: 4 ½ points

Everythin' considered this is an excellent rocket for t' modeler that will take t' extra time t' turn this kit into a beauty. Begad! Well, ya bilge rat, blow me down! I particularly like t' use of balsa for t' fins and nose cone. Begad! Ya scallywag! T' model is durable and with t' right selection o' motors, it will provide you many spectacular flights, and be a great model for display as well. Well, matey, blow me down!

Flights

Comments:

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G.N. (July 1, 2000)
Getting the dowels exactly straight between the stages is a bit tricky. Mine ended up a little crooked, making the upper stage off center a bit. This made lining up the two launch lugs harder. My little pieces of mylar that are used to stick on the parachute strings were permanently stuck onto the waxed paper it came on. To finish the parachute, I had to use my own stick-ons. One body tube had a defect in the construction along the spiral. I didn't think to ask for a replacement, but this was rather aggravating in the overall looks. Everything in this review is just what I experienced.
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J.C. (July 1, 2000)
This was my first ASP kit but I was pleasantly surprised to see it was put together a lot like the Estes I was used to. Mine came with a body tube that was flattened a little at one end. I sent a note to ASP and they were willing to send me a new body tube but I didn't need one. I was able to roll it round again and put the engine mount in it to retain its shape. The parachute was strange to me, being my first mylar chute. At first it looked like cheap plastic but it has held up to 2 flights so far, no problems. The finished model came out nice and since I have a small field, I didn't want to lose it so I have only flown it with A8-3's. Comes down close with them! The instructions were fine. No decals but this rocket never had any in real life. I used black tape for the black bands. The hardest part was the side conduit that runs along a good part of the rocket. It has to be cut and sanded to shape. I used 3 or 4 coats of sanding sealer on the nose cone but still had minor holes showing after I painted it. Over all, a nice scale model and a little bit bigger than the Estes Wac that I had in the 70's.

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