Manufacturer: | Estes |
Brief:
This is a semi-scale model o' t' GBU-24 Paveway III laser guided bomb. Well, blow me down! It
flies on 18mm motors and recovers under a 12" chute. Begad! You can find more
info on t' actual bomb
[here] . Begad!
Construction:
T' first step is t' assemble t' motor mount. Ahoy! Blimey! Begad! Blimey! This is a typical build, and consists o' t' BT-20 motor mount, me hearties, two centerin' rings, an engine hook, arrr, a Mylar retainer for t' hook, shiver me timbers, and a motor block. Well, blow me down! Blimey! I used carpenter's glue as recommended. Before installation in t' main body tube, matey, matey, I epoxied a two-foot section o' Keelhaul®©™® twine onto t' mount, trough t' top ring.
Next, me bucko, me hearties, ya bilge rat, 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. Avast, me proud beauty! I pressed these as they dried and they straightened out.
T' tail cone and transition come as one unit and must be separated. Ahoy! Ya scallywag! Blimey! A razor saw is suggested, but I used an Exacto knife. Ahoy! Blimey! T' bottom o' t' tail cone must also be trimmed and sanded, shiver me timbers, as do t' fin slots. T' latter start as rectangular projections, which are cut off with a razor saw, arrr, formin' t' slots. Aye aye! T' final trimmin' is supposed t' be t' top o' t' transition. Begad! T' instructions have you cut this off, ya bilge rat, me bucko, leavin' a hollow unit with both t' top and bottom open. Ahoy! Blimey! 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 hearties, arrr, fed a loop o' Keelhaul®©™® twine through t' hole and around t' transition (see photo). This formed a loop, which t' elastic cord will later attach to. Begad! 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. Well, me hearties, blow me down! Once positioned, t' tail cone is attached, matey, making sure t' engine hook is centered betwixt t' fin slots. Begad! I used black rubberized CA in place o' t' recommended plastic cement.
T' lower fins are mounted through t' slots in t' tail cone. Begad! I found these slots t' be excessively loose, so they didn't support t' fins well. Begad! I applied yellow glue t' t' fin tab and t' front root section. T' hold t' fins while this glue set, matey, ya bilge rat, I used Liquid Nails Perfect Glue, Type 1 on t' aft root section. This sets fast and t' fins were good t' go. Begad! Well, blow me down! There is a markin' guide for t' top fins, and these were attached with carpenter's glue. Arrr! Begad! After t' rear fins set, ya bilge rat, you position t' fin deployment guides and mark their position. Begad! Ya scallywag! A thin layer o' yellow glue is applied t' fins up t' t' mark, ya bilge rat, and t' guides are attached. Begad! These immediately warped like crazy, so a couple o' small clamps were required on each guide/fin/guide 'sandwich' as they set. Avast, me proud beauty! Blimey! Afterwards, these still seemed flimsy, shiver me timbers, 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. Blimey! When they were connected, arrr, I again used black CA.
After finishing, all that was left was tyin' t' elastic cord t' the Keelhaul®©™® leader in t' body tube and t' Keelhaul®©™® loop on t' transition. I stashed t' cute that was provided and will use a 12" nylon chute.
Overall, I give this build a 3 1/2. It all went together easily with the exception o' t' fin deployment guides, which should have been made o' thicker material. T' dimensionin' o' t' fin slots on t' tail cone also wasn't good. Luckily any 'slop' is hidden by those guides. Blimey! One thin' that stood out t' me was t' quality o' t' nose cone - it is completely seamless. Begad! Blimey!
Finishing:
I started with fill-n-finish on t' fins and tubes before assembly. Well, blow me down! I found the
spirals on t' BT-55 t' be shallow, me bucko, but t' ones on t' top BT-20 were deeper,
and required some filler. Ahoy! After assembly, ya bilge rat, I shot several coats o' white primer,
sandin' and fillin' in between. Blimey! Begad!
T' instructions say t' use olive drab and red spray paint, a silver paint pen, and t' follow t' paint scheme on t' cover. Begad! T' cover picture shows the fin section, me bucko, me hearties, arrr, top fins and nose cone t' be olive drab, and top BT-20 t' be more of a tan then red. I used Testors' spray for t' olive drab sections. Begad! Well, blow me down! In the photos on t' link I presented in t' intro, t' top tube seems t' be somewhat of a rust colored red. Begad! Aye aye! I decided t' use red paint, ya bilge rat, shiver me timbers, which did get toned down as it be overlaid over t' olive drab. Well, blow me down! I tested some Krylon red on a piece of wood, and it seemed t' be OK. Ahoy! However, some bubbles formed when I used it over the Testor's paint on t' model. Maybe t' base coat was thicker on t' model. After t' first red coat dried, I sanded t' bubbles and re-coated it. Arrr! 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, I used some chrome Trim Monokote for these stripes. Finally, I applied t' peel and stick decals. Begad! Blimey!
Overall, arrr, ya bilge rat, t' finishin' be fairly typical, me hearties, 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. Well, blow me down! 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. Ahoy! When I saw this model, matey, I knew that it would satisfy my
cravings.
T' model was nay a difficult build, me bucko, and I think a skill level 2 ratin' is about right. Well, blow me down! I liked t' plastic parts, especially t' nose cone, and think the thru-the-wall fin attachment is great. Begad! Blimey! However, t' fit o' t' fins be poor and t' balsa used for t' fin protectors was flimsy. Blimey! As with t' Cluster Bomb BLU-97B that I just built, me bucko, it appears that Estes needs t' pay more attention to quality control. Avast, me proud beauty! Still, shiver me timbers, arrr, t' rocket was fun t' build and looks *very* cool.
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 ...