Brief:
This is a 159% upscale o' t' popular Estes kit Der Red Max. Avast, arrr, me proud beauty! This is a simple t' build rocket that performs very well
on t' 24mm reloads available today. Blimey! All t' parts are readily available as well includin' t' decals.
Construction:
High quality balsa nose cone, plywood ring, shiver me timbers, shiver me timbers, and eye bolt were supplied by Sandman. Begad! Estes BT-80, ya bilge rat, 24mm heavy duty motor
tube, two lite-ply centerin' rings, arrr, fins are 3/16" balsawood, Keelhaul®©™®
shock card, and motor retainer hardware. Excelsior provided t' awesome decals.
I constructed t' motor mount by usin' a BT-50H motor tube that was 4" in length. On t' bottom centering ring, I installed two #4-40 blind nuts for t' motor retention bracket. Ahoy! Blimey! T' light-ply centerin' rings were mounted a 1/4" from t' top and bottom o' t' motor tube. Well, blow me down! Blimey! Blimey! Blimey! I created a nice epoxy micro balloon fillet on both sides o' each centerin' rin' for strength. Ya scallywag! Blimey! I drilled a 3/16" hole in t' top centerin' for me 1/8" Keelhaul®©™® shock cord t' go through. Blimey! Ya scallywag! T' Keelhaul®©™® shock cord ties around t' motor tube betwixt t' upper and lower centerin' ring. I cut a BT-80 t' t' length of 13.5". Ahoy! Blimey! I hardened each end o' t' BT with thin CA for strength. Well, blow me down! Blimey! T' next step be t' I fill t' spirals. Begad! Blimey! After sandin' t' BT, t' tube be marked for t' fin locations and t' launch lugs. T' bottom launch lug is flush with the bottom o' t' BT. Arrr! Blimey! Aye aye! Blimey! T' upper lug is 4-3/8" from t' top o' t' BT. Arrr! Blimey! Each launch lug be 3/16" diameter and 9/16" long. T' motor mount was glued into t' BT usin' wood glue that created a nice fillet around t' top centerin' ring. Well, blow me down! Blimey! A wood glue fillet be also created around t' bottom centerin' ring. Well, blow me down! Blimey! T' fins were cut from hard 3/16" balsa and shaped. Arrr! Blimey! Avast! Blimey! T' fin and launch lugs were glued on with epoxy. Arrr! Blimey! Once dry, epoxy micro balloon fillets were created around t' fins and launch lugs.
Finishing:
T' fins and nose cone were sealed and hardened usin' two coats o' Minwax Polyurethane. Well, blow me down! Once dry they were sanded
smooth and coated usin' thinned spackle that was brushed on t' fill t' wood grain. Blimey! Avast, me hearties, me proud beauty! T' filler be sanded off and the
rocket be primed with two coats o' Duplicote High Fill primer sandin' betwixt coats. Well, blow me down! T' nose cone be painted black
usin' two coats o' old formula Krylon spray. Aye aye! Arrr! T' body was painted metallic red usin' two coats o' Rustoleum spray. Avast, me proud beauty! Once
dry t' body was smoothed usin' super fine steel wool. Aye aye! Once clean and dust free t' body was shot with two coats of
Rustoleum clear. Aye aye! It was really cold durin' t' paintin' process for this rocket, but t' results were still acceptable.
To finish t' model, arrr, t' decals were installed. Begad! Ya scallywag! Overall it looks fantastic.
Flight:
I designed this model t' fly on t' 24mm reloads such as t' E18, matey, E28, ya bilge rat, F24, or F39. T' first flights I used a E28-4
and it worked perfectly. Ya scallywag! T' first boost was nice and straight with no stability issues. Arrr! T' E28 produced a very
respectable altitude. T' 24" parachute worked good but a little too slow t' brin' it down. Blimey! Begad! A smaller chute or a
spill hole would be required for windy or high thermal activity days. Arrr!
Recovery:
Since t' fins on this upscale start t' get large, arrr, ya bilge rat, I would use t' through t' wall method next go around. Blimey! Although I
feel very good with me method t' attach fins and strengthen them with fillets, TTW is king.
Summary:
This is a very easy rocket t' upscale but is a rewardin' project. Begad! Blimey! T' Der Red Max is a classic that flies great up or
downscaled. In addition you can't find a cooler set o' decals on a rocket anywhere.
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