Estes Screamin Mimi to Der Red Max

Scratch - Screamin Mimi to Der Red Max {Scratch}

Contributed by James Gartrell

Manufacturer: Scratch
(Contributed - by James Gartrell - 07/01/03)

Brief:
Upsized motor mount t' hold Estes E-9. Ahoy! Arrr! Substituted fin design, shiver me timbers, paint scheme and Tango Papa decals for Der Red Max. Avast, me proud beauty! 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, ya bilge rat, ya bilge rat, rather than 25.5 inches for t' Screamin' Mimi. Begad! Also, replaced shock cord with a Keelhaul®©™®/elastic combination. Aye aye! Installed screw eye with JB-Weld into t' hole in t' nose cone base. Blimey! Avast! Used basswood for fins. Begad! Well, blow me down! Modified an old Estes E-motor engine hook t' fit the newer E-9's. Ya scallywag! Basically, ya bilge rat, shiver me timbers, t' only thin' I used from t' kit be t' main body tube, me bucko, me hearties, arrr, nose cone, centerin' rings, engine hook retainer, and engine block, but I got it at a 1/2 price sale at Hobby Lobby for $5.50.

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

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

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

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

Other:
Tango Papa decals are nice!

Flights

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