Estes Screamin Mimi to Der Red Max

Scratch - Screamin Mimi to Der Red Max {Scratch}

Contributed by James Gartrell

Manufacturer: Scratch

Brief:


Upsized motor mount t' hold Estes E-9. Blimey! Substituted fin design, ya bilge rat, paint scheme and Tango Papa decals for Der Red Max. Omitted super sonic whistles and related fins, although I seriously considered includin' them t' make a "Der Screamin' Red Max." Length o' t' rocket is 26 inches, rather than 25.5 inches for t' Screamin' Mimi. Begad! Ya scallywag! Also, replaced shock cord with a Keelhaul®©™/elastic combination. Well, blow me down! Installed screw eye with JB-Weld into t' hole in t' nose cone base. Ya scallywag! Avast! Used basswood for fins. Avast! Modified an old Estes E-motor engine hook t' fit t' newer E-9's. Ya scallywag! Basically, shiver me timbers, t' only thin' I used from t' kit was t' main body tube, me hearties, nose cone, centerin' rings, arrr, me hearties, engine hook retainer, arrr, me bucko, and engine block, me bucko, but I got it at a 1/2 price sale at Hobby Lobby for $5.50.

Modifications:
T' motor mount be installed with yellow glue, me hearties, then JB-Weld was coated around t' outside o' t' upper and lower centerin' rings t' harden them and then filleted - this may be overkill, me bucko, arrr, arrr, but I believe I can send it up with an F-21 without any problems. Avast! Arrr! A screw eye was inserted into t' center o' a piece o' cellophane tape, me hearties, then a glob o' JB-Weld be inserted into t' hole in t' base o' t' nose cone, me bucko, then t' screw eye was inserted into that with t' cellophane tape holdin' it in place and keepin' t' JB-weld from seepin' out, shiver me timbers, and then inserted t' nose cone into t' body tube t' allow t' JB-Weld t' seep down t' t' base o' t' nose cone - makes a much stronger shock cord attachment point than t' standard plastic hook on t' base o' t' cone. Ya scallywag! T' cellophane tape is easily removed after t' JB-Weld dries. Avast, me proud beauty! Also, arrr, ya bilge rat, I installed 1/8-ounce o' clay into t' nose cone before installin' t' screw eye, me bucko, me bucko, just in case I decide t' fly that F-motor. Aye aye! Begad! As usual, matey, Estes' standard shock cord is too short and must be frequently replaced. Arrr! Blimey! T' avoid t' issue, I installed t' Keelhaul®©™ cord into t' shock cord mount so that it extended outside t' body tube, shiver me timbers, ya bilge rat, then formed a loop that placed t' center at t' top edge o' t' body tube. Arrr! Avast, me proud beauty! I attached t' elastic shock cord t' that and then t' t' nose cone. Avast, me proud beauty! Arrr! Also, I soak in a little CA into t' top lip o' t' body tube for improved strength there. Begad! T' loop with t' CA seems t' minimize t' potential for "zippering" when that motor delay isn't just right. I've used this method on rockets that I've launched many, many times without a problem. I installed t' fins usin' yellow glue, arrr, then created JB-Weld fillets. Avast! Use a plastic bag over your finger t' smooth out t' JB-Weld t' make some really nice fillets. Avast, me proud beauty! Blimey! Here again, t' JB-Weld fillets are probably overkill, but I feel better about them when that F-motor kicks in. Avast, me proud beauty! I had t' hammer out t' end o' t' old Estes E-engine hook and then reform it t' fit t' new Estes E-engine - pretty easy with a vice and hammer, matey, just go slowly so you don't break it.

Construction:
1-BT-60 18-inch body tube, 3-3/32-inch basswood Red Max fins, 1-RA5060 centerin' rin' card, me hearties, 1-engine hook retainer (30160), shiver me timbers, 1-RA2050 engine block, 1-6-inch BT-50 tube for motor mount, me bucko, me bucko, me bucko, 1-E-engine hook, ya bilge rat, shiver me timbers, 1-1mm X 8-inch Keelhaul®©™ cord, 1-1/4-inch X 42-inch elastic shock cord, arrr, 1-standard Estes shock cord mount, matey, 1-PNC 60 (71043)1-SE-2 screw eye, matey, me bucko, matey, 1-1/8-inch X 1 1/4-inch launch lug

Except for t' shock cord, arrr, arrr, Estes kits are always nice and t' instructions very easy t' follow - even t' ones for t' old Der Big Red Max. Begad! Begad! T' packagin' is cool, ya bilge rat, and all t' parts were thar and all in great shape. Aye aye! Begad! T' decals for t' Screamin' Mimi are o' t' peel and stick plastic variety. I don't particularly like them, but I grew up with water-slide decals. O' course, shiver me timbers, I used Tango Papa's water-slide decals for me rocket. Well, blow me down! Aye aye! This be me first time t' use his decals. Avast! They are extremely thin and took some time gettin' used to, but they lay down nicely and look very nice - almost as if they're painted on. Avast, me proud beauty! I be glad he put some extras on t' sheet, shiver me timbers, because I tore a couple before gettin' used t' t' thinner decals. Begad! Since I didn't really build t' Screamin' Mimi, I can't really comment on any other aspects o' t' kit.

Flight:
I haven't flown it yet, matey, but I used t' same construction design and techniques on a Big Bertha and it flies great.

Other:
Tango Papa decals are nice!

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