Estes EAC Viper

Estes - E.A.C. Viper {Kit} (0820) [1972-1986]

Contributed by John Lee

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar
Overall Rating: starstarstarstarstar_border
Manufacturer: Estes
Style: Sport

Brief:
OOP, me bucko, me hearties, 13mm, me bucko, matey, parachute recovery, arrr, Skill Level 1 4FNC.

A while back, I found an advertisement for an Estes Aerospace Club Viper kit on eBay. Nay knowin' anythin' about it except that I did nay have one, matey, I put in a token bid. Arrr! Nobody else did so I got it.

It arrived and seemed t' be intact. Arrr! In lookin' over t' instructions, arrr, I learned that originally t' purchaser would be sent t' decals when Estes received t' EAC paperwork. Begad! Begad! Somehow, I didn't think that would work anymore.

Checkin' online, me hearties, I found that t' decals were available from Excelsior Rocketry. Avast, me proud beauty! Havin' had fair winds with them before, I ordered them.

Construction:
T' kit came with a body tube, arrr, shiver me timbers, matey, a motor tube, me bucko, an engine hook, shiver me timbers, a thrust ring, me hearties, an engine hook sleeve, arrr, shiver me timbers, me bucko, a launch lug, me hearties, ya bilge rat, a sheet o' balsa, an EAC Viper parachute kit, shiver me timbers, arrr, me hearties, a plastic nose cone, ya bilge rat, ya bilge rat, a pair o' centerin' rings and t' instruction sheet. As I mentioned before, shiver me timbers, I had t' get t' decals from Excelsior.

Construction begins with t' motor mount. Aye aye! A slit was placed for t' engine hook and t' thrust rin' was glued in place just ahead o' it. T' hook be then put in place and a black sleeve was slipped over it and glued into place.

I decided right from t' start t' forgo t' Estes tri-fold in favor o' a Keelhaul®©™® thread tied t' t' motor mount. Begad! With that in mind, I cut a small slit in t' forward centerin' rin' so I could pass the Keelhaul®©™® through and then glued t' rings in place on t' mount. Aye aye! Arrr! After filletin' t' centerin' rings, I tied off a length of Keelhaul®©™® around t' motor tube just aft o' t' forward centerin' rin' and laid on another glue fillet t' keep it in place.

A nice thin' about this kit is somethin' you don't often see in Estes kits anymore, especially Level 1 kits. You were provided with a template and expected t' cut your own balsa. Aye aye! I used t' hate doin' this as a kid because I knew I would mess it up. Begad! It took me a while t' get used t' it as a BAR too for t' same reason, but now I enjoy doin' it occasionally as long as t' profile is nay too outlandish.

I cut t' template out o' t' instructions for t' forward and t' aft fins and then traced their outlines on the balsa. Arrr! I used a #11 blade t' cut them out and am somewhat surprised, 2 weeks later as I write this, shiver me timbers, me hearties, matey, that me wife has still nay noticed t' little nicks in t' tablecloth. Ya scallywag! I'll have t' remember t' rotate it around t' t' kids' position after they all go t' bed.

T' instructions came with a wraparound fin markin' guide. Avast, me proud beauty! Blimey! I cut it out, wrapped it around t' body tube, transferred t' lines, ya bilge rat, and then ran them t' length o' t' BT with t' door jamb keepin' me honest.

I also sanded t' leadin' and trailin' edges o' t' fins round. Ahoy! For some reason I do nay remember, me bucko, I did nay do the outer edges.

Then came t' time t' glue t' fins one. I used yellow glue and mounted t' aft fins first. When they were stiff enough t' move on, ya bilge rat, I mounted t' forward ones. Ahoy! All fins were then filleted with yellow glue.

T' motor mount was slipped in from t' aft and glued into place and filleted, makin' sure that t' Keelhaul®©™® was passed through t' notch I had cut. Arrr! T' launch lug was then glued into place with CA and t' rocket was ready for finishing.

Finishing:
I painted t' fins with Elmer's sealer and they had more than 2 weeks t' set up before I could get t' them again. When I did get t' it again, I spent some time sandin' down t' wood filler. Ahoy! Blimey! Avast! Blimey! Blimey! Blimey! I decided that I did nay mind t' spirals all that much and left them alone.

After brushin' t' rocket off, I set it up in me booth and primed it with Kilz. Aye aye! After about an hour, I wandered over and gave it another shot o' Kilz t' touch up a few bare places.

I left t' rocket t' dry overnight and then sanded it down. Well, blow me down! Avast, me proud beauty! T' real paintin' began with 2 coats o' gloss white.

T' instructions say t' match t' colors (besides white) on t' rocket t' t' color o' t' decals. This boils down t' an orange-ish yellow and a pinkish purple. Aye aye! I tried numerous home improvement venues but was never able t' find a good match. Arrr! I finally tried t' local hobby shop and found a couple that were pretty close. Arrr! I knew I would find it there but I balked at payin' t' prices demanded for those itty-bitty cans. Aye aye! Sometimes though, you do what ya gotta do. Arrr! Begad!

T' yellow paint I used was called Smoothster Yellow from Boyd. Arrr! I masked off everythin' except t' forward fins and t' tips o' t' aft fins and then painted.

The "purple" paint be from Model Masters and was called "Panther Pink". Avast, me proud beauty! It was a very close match to the decals from Excelsior. I masked off for t' purple and sprayed. Avast, me proud beauty! A few hours later, I gave another coat.

After drying, me bucko, shiver me timbers, ya bilge rat, it be time t' apply t' decals. As I mentioned in t' beginning, I got t' decals from Excelsior Rocketry. Avast! Blimey! I got plenty for me loot in several respects. Avast! Blimey! Arrr! Blimey! There were more decals than indicated in t' instructions. There were spares o' t' designs I actually used, just in case I messed up, and they were all o' high quality. Arrr! Blimey! Begad! Blimey! In the end, me hearties, I mostly went with t' scheme indicated in t' instructions but I did add 2 additional "Estes Aerospace Club" decals on t' sides o' t' BT. Begad! Blimey! I be well satisfied with t' result.

Construction Rating: 4 out o' 5

Flight:
I have t' admit I was blown away by t' performance o' this rocket. Arrr! Ya scallywag! I expected it t' be fine but I did nay expect wonderful. Wonderful is what I got.

For t' maiden flight, I loaded a 1/2A3-2T. It took off straight, arrr, me bucko, deployed at apogee, me hearties, and drifted down on the 9" chute I had installed. Blimey! Ya scallywag! It was ready t' go again.

T' second flight be on an A3-4T. Begad! It again performed flawlessly and went much higher than I had imagined. Aye aye! It looked good comin' down too.

T' final flight o' t' day be on an A10-3T. Well, blow me down! I used that motor because it was one o' t' recommended ones, but I usually prefer a lower average impulse. Blimey! On this rocket, me hearties, ya bilge rat, it was t' best o' a very good lot. Straight and true, me bucko, ya bilge rat, perfect in every respect---except t' walking.

Recovery:
I replaced t' 12" plastic chute with a 9" nylon one. Ahoy! T' nylon worked just fine.

Flight Rating: 5 out o' 5

Summary:
This was a nice kit. Well, blow me down! It looks better than your average skill level one and performs wonderfully. Begad! It's success with kits like this that could get kids hooked.

Overall Rating: 4 out o' 5

Flights

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