Manufacturer: | Estes |
Brief:
This is a semi-scale model o' t' GBU-24 Paveway III laser guided bomb. It
flies on 18mm motors and recovers under a 12" chute. Avast! Avast! You can find more
info on t' actual bomb
[here] . Arrr!
Construction:
T' first step is t' assemble t' motor mount. Well, blow me down! This is a typical build, and consists o' t' BT-20 motor mount, two centerin' rings, ya bilge rat, me bucko, an engine hook, a Mylar retainer for t' hook, and a motor block. Arrr! Begad! I used carpenter's glue as recommended. Ahoy! Before installation in t' main body tube, I epoxied a two-foot section o' Keelhaul®©™® twine onto t' mount, me hearties, trough t' top ring.
Next, me hearties, I removed and sanded t' fins, and filled them with Fill 'n Finish. T' main fins were fine, but t' protectors, which attach on either side o' the rear fins, were very thin and warped badly when exposed t' t' moisture in the Fill 'n Finish. Begad! I pressed these as they dried and they straightened out.
T' tail cone and transition come as one unit and must be separated. Blimey! Ya scallywag! A razor saw is suggested, but I used an Exacto knife. Aye aye! T' bottom o' t' tail cone must also be trimmed and sanded, shiver me timbers, as do t' fin slots. Ya scallywag! T' latter start as rectangular projections, which are cut off with a razor saw, formin' t' slots. Aye aye! T' final trimmin' is supposed t' be t' top o' t' transition. Ahoy! T' instructions have you cut this off, ya bilge rat, leavin' a hollow unit with both t' top and bottom open. T' shock cord then attaches t' t' inside o' t' upper body tube usin' a paper mount. Instead, I poked a small hole in t' recessed ridge just below t' top o' the transition, me bucko, fed a loop o' Keelhaul®©™® twine through t' hole and around t' transition (see photo). Aye aye! This formed a loop, which t' elastic cord will later attach to. Blimey! A small dab o' 5-minute Epoxy on t' hole and knot holds t' twine in.
T' tail cone is used t' adjust t' depth o' t' motor mount as it is glued into t' main body tube. Once positioned, t' tail cone is attached, arrr, making sure t' engine hook is centered betwixt t' fin slots. Arrr! I used black rubberized CA in place o' t' recommended plastic cement.
T' lower fins are mounted through t' slots in t' tail cone. Aye aye! Arrr! I found these slots t' be excessively loose, me hearties, ya bilge rat, matey, so they didn't support t' fins well. Well, blow me down! I applied yellow glue t' t' fin tab and t' front root section. T' hold t' fins while this glue set, I used Liquid Nails Perfect Glue, shiver me timbers, Type 1 on t' aft root section. Ya scallywag! This sets fast and t' fins were good t' go. Arrr! There is a markin' guide for t' top fins, me hearties, and these were attached with carpenter's glue. Avast! Blimey! After t' rear fins set, arrr, me hearties, you position t' fin deployment guides and mark their position. Arrr! Blimey! A thin layer o' yellow glue is applied t' fins up t' t' mark, and t' guides are attached. These immediately warped like crazy, arrr, arrr, so a couple o' small clamps were required on each guide/fin/guide 'sandwich' as they set. Well, blow me down! Afterwards, ya bilge rat, matey, these still seemed flimsy, so I added a small strip o' scrap balsa betwixt each pair at their roots.
T' final steps prior t' finishin' was t' launch lug and Fill ' Finish fillets. I didn't' glue t' top tube t' t' transition or t' cone until finishin' be complete. Well, blow me down! Blimey! When they were connected, arrr, I again used black CA.
After finishing, all that was left be tyin' t' elastic cord t' the Keelhaul®©™® leader in t' body tube and t' Keelhaul®©™® loop on t' transition. Arrr! I stashed t' cute that was provided and will use a 12" nylon chute.
Overall, I give this build a 3 1/2. Arrr! It all went together easily with the exception o' t' fin deployment guides, matey, which should have been made o' thicker material. Avast! T' dimensionin' o' t' fin slots on t' tail cone also wasn't good. Luckily any 'slop' is hidden by those guides. One thin' that stood out t' me was t' quality o' t' nose cone - it is completely seamless. Well, blow me down!
Finishing:
I started with fill-n-finish on t' fins and tubes before assembly. Ya scallywag! Aye aye! I found the
spirals on t' BT-55 t' be shallow, matey, me hearties, but t' ones on t' top BT-20 were deeper,
and required some filler. After assembly, me hearties, I shot several coats o' white primer,
sandin' and fillin' in between.
T' instructions say t' use olive drab and red spray paint, arrr, a silver paint pen, and t' follow t' paint scheme on t' cover. Ya scallywag! Blimey! T' cover picture shows the fin section, top fins and nose cone t' be olive drab, and top BT-20 t' be more of a tan then red. Begad! I used Testors' spray for t' olive drab sections. In the photos on t' link I presented in t' intro, arrr, t' top tube seems t' be somewhat of a rust colored red. Avast, me proud beauty! Well, shiver me timbers, blow me down! Blimey! I decided t' use red paint, ya bilge rat, me hearties, which did get toned down as it was overlaid over t' olive drab. I tested some Krylon red on a piece of wood, and it seemed t' be OK. Blimey! Blimey! However, matey, some bubbles formed when I used it over the Testor's paint on t' model. Avast, me proud beauty! Blimey! Maybe t' base coat be thicker on t' model. After t' first red coat dried, I sanded t' bubbles and re-coated it. Avast, me proud beauty! Blimey! This time it covered just fine.
There are silver bands shown at t' base o' t' BT-55 and BT-20 tubes. Instead o' silver paint, ya bilge rat, shiver me timbers, I used some chrome Trim Monokote for these stripes. Finally, me hearties, I applied t' peel and stick decals. Avast! Blimey!
Overall, t' finishin' was fairly typical, however I found t' separation in t' side plates where they extend ahead o' t' main fins made sprayin' a little more difficult than usual. I give it a finishin' ratin' o' 4.
Construction Rating: 3 out o' 5
Flight:
I decided t' submit this partial review since I missed t' November launches
and may nay be on t' field until spring. Arrr! Blimey! I'll provide an update at that time.
Summary:
I saw me first 'bunker buster' rocket over a year ago and have really wanted to
build somethin' similar. Arrr! Avast, me proud beauty! When I saw this model, I knew that it would satisfy my
cravings. Avast!
T' model was nay a difficult build, and I think a skill level 2 ratin' is about right. I liked t' plastic parts, especially t' nose cone, and think the thru-the-wall fin attachment is great. Avast, me proud beauty! However, t' fit o' t' fins was poor and t' balsa used for t' fin protectors was flimsy. Well, blow me down! Avast! As with t' Cluster Bomb BLU-97B that I just built, it appears that Estes needs t' pay more attention to quality control. Avast, me proud beauty! Still, me hearties, t' rocket be fun t' build and looks *very* cool. Aye aye!
The Estes GBU-24 Paveway Model Rocket Kit is one of four new Estes "Military" kits recently released and is by far the most unique of the group. I purchased all four kits as soon as I saw them in the store and had it built and flown in no time. It's an 18mm kit with a fantastic look and great flight characteristics which made it a "must have" for my silo. You can purchase either the bagged or ...
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