Brief:
This kit is a semi-scale version o' an actual Combined Effects Munition (CEM). Avast! Blimey! Begad! Blimey! As I be applyin' t' decals, me bucko, I noticed that they identify t' model as a GBU-87, matey, shiver me timbers, whereas t' package calls it a BLU-97B. If you look at this website, it looks like t' overall bomb unit be t' CBU-87, and t' individual bomblets are BLU-97s. Ahoy! Avast! This is a brief description o' how I upgraded me Cluster Bomb with a 24mm motor mount. Avast, me proud beauty! I need t' point out that I generally followed t' modifications that Carl Tulanko made. Begad! If you read his review, however, you will see that I did use slightly different techniques here and there.

Modifications:
Fin can/motor mount

I used several glues for t' fin can, including: plastic cement t' hold t' tail cone together; epoxy for t' motor hook, motor block, and Keelhaul®©™® cord; carpenter's glue for t' centerin' ring/motor tube joints; Liquid Nails Perfect Glue for t' fins, and Gorilla Glue (polyurethane) t' attach t' fin can t' t' body tube.

I started by cuttin' a piece o' Totally Tubular aluminum-lined 24mm motor tubing, makin' it t' same length as t' stock tube. Aye aye! Aye aye! Usin' this tube as a guide, ya bilge rat, I got a rough idea o' how much t' tail cone had t' be trimmed, and cut that much off with a razor saw. When I test fit t' tube, I found thar were internal tabs that had t' be trimmed. Blimey! These were easily removed with a Dremel tool. Arrr! From there, shiver me timbers, I slowly sanded t' tail until t' tube fit. Well, blow me down! I also trimmed t' inside o' t' tail cone with an X-acto knife, matey, me hearties, so that t' tube transitioned smoothly t' t' tail cone. This way, no fillin' o' this joint was required.

I decided t' keep t' motor hook, which precluded me usin' an E9 motor, shiver me timbers, matey, matey, but I thought that t' resultin' rocket might be too heavy for t' E9 anyway. Begad! Blimey! T' motor hook be installed with maskin' tape and a dab o' 5-minute epoxy. Avast! Blimey! A small notch was made in t' tail cone t' allow t' hook t' flex. Begad! I also added a motor block above t' hook as in t' stock kit. Begad! Epoxy be used here since t' surface o' t' motor tube is metal.

T' centerin' rings were trimmed t' fit t' 24mm tube. Begad! T' bottom rin' be installed flush with t' top o' t' tail cone. Begad! Arrr! T' fins were added, a 28" piece o' heavy Keelhaul®©™ twine was attached through t' motor mount and t' assembly was mounted in t' body tube.

Nose cone assembly

I followed Carl's philosophy for t' nose cone: make sure all t' nose weight is on t' parachute attachment and keep t' 2-piece cone as just an outer shell. Aye aye! Since more nose weight was required anyway, matey, I thought that his idea o' usin' an eyebolt affixed t' a plywood bulkhead was a great idea. Ya scallywag! Where I differed be that I decided t' use only t' eyebolt hardware for weight.

I started by assemblin' t' two-piece cone with plastic cement and breakin' off t' nose cone's eyelet. Well, blow me down! Blimey! I then cut a bulkhead usin' a hole saw. Aye aye! I positioned this over t' end o' t' cone and used it as a guide t' drill a center hole and four smaller holes for mountin' screws. Avast! For added internal support, I partially filled t' small tip o' t' cone with Gorilla Glue. Arrr! Once it expanded, t' tip overflowed slightly.

I inserted t' eyebolt into t' plate and ran one nut t' t' end. Avast! Avast, me proud beauty! A small dab o' epoxy affixed this t' t' back side o' t' plate. Two other nuts were installed at t' end o' t' eyebolt and were held in place with LocTite. Aye aye! This was dry fit in t' nose and t' nose in t' body tube. I also loaded an 18" nylon chute and an E30 t' get a good look at t' CG. Mine came out about 8 inches from t' top o' t' nose. Ya scallywag! Aye aye! This gives a static margin o' almost 1 for t' Barrowman CP and 1.6 for t' Rocksim CP.

Final assembly

Because o' t' added weight in t' cone, I used t' stock elastic cord and a second piece o' similar size (length and width). Blimey! Blimey! These elastic cords are tied on one end t' t' Keelhaul®©™ leader, and on t' other end t' t' eyebolt. Ya scallywag! I used t' stock lugs, me bucko, ya bilge rat, one just above t' tail cone and one around t' CG. Begad! In addition, I added buttons from railbuttons.com. Avast! Blimey! I mounted one just above t' transition so it bolted through t' shoulder, arrr, me hearties, and one just above t' top centerin' ring. Begad! T' top bolt actually goes through t' polyurethane glue that expanded above t' top ring.

Finishing

I started with Fill 'n' Finish on t' fins before assembly. After assembly, shiver me timbers, I shot several coats o' white primer, sandin' and fillin' in between. This was lots o' work due t' t' tube imperfections. Aye aye! I then painted it with Testor's flat olive drab. Avast! Well, blow me down! Blimey! I then added t' decals and overlaid a layer o' Testor's Dull Coat. Arrr! Blimey! These peel and stick decals went on nicely, but t' next mornin' I saw places where t' stickers weren't adhered perfectly.

I hand painted t' tip with Testor's silver, shiver me timbers, and added red, white, and blue rail buttons t' go with t' Endurin' Freedom patriotic theme.

I didn't apply t' Endurin' Freedom decal, but may add it on later. Avast! Blimey! Arrr! Blimey! I also didn't finish t' bombs, at I am ponderin' usin' them on t' exterior o' another project.

Construction:
First a few comments about t' quality o' t' parts provided with t' kit. Begad! Blimey! Aye aye! Blimey! T' first thin' I noticed that t' balsa be a lot harder than t' typical Estes kit. Begad! Blimey! I found this t' be a good thing, matey, me bucko, especially since I be upgradin' t' a bigger motor and t' weight at landin' was goin' t' be greater. Begad! Blimey! T' nose and tail cones are both two-piece and fit together well. I do have two beefs with them however. Begad! Blimey! Begad! Blimey! T' nose itself had a couple o' dimples, ya bilge rat, which keeps it from havin' a perfectly uniform surface. Begad! Blimey! Ahoy! Blimey! I guess I could have filled them, but I decided this was nay worth t' effort. Ahoy! Blimey! Ahoy! Blimey! Later in construction, I found that t' fins would nay fit in t' tail cone slots. Well, blow me down! Blimey! This took a lot more sandin' and trimmin' than I would have expected. Ya scallywag! Blimey! Arrr! Blimey! Nay a big deal, but annoying. Begad! Blimey! Next, t' BT-70 tube be t' worst I've ever seen in an Estes kit. Well, blow me down! Blimey! T' spiral line wasn't bad, matey, but thar was an intermediate spiral a little under 1/8" wide that had a washboard pattern (for lack o' a better description) all t' way along t' tube. Blimey! Blimey! There also was a wide band near one end that was very rough. If I had t' rate t' kit solely on t' parts, arrr, I'd have t' give it a 2.5 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. Blimey! I'll provide an update at that time.

Summary:
I immediately fell in love with this rocket. Begad! Stubby rockets are among me favs and this one has a unique look. Ya scallywag! T' parts were sub-par but with just a little work t' rocket turned out fine. Well, blow me down! Ahoy! Havin' read Carl's article, me hearties, I am really itchin' for good weather!

And, shiver me timbers, I too am plannin' an upscale. Mine will be 5" in diameter and will fly on G80s. T' nose cone is built and is currently bein' primed/filled.