Brief:
This is a 159% upscale o' t' popular Estes kit Der Red Max. Aye aye! This is a simple t' build rocket that performs very well on t' 24mm reloads available today. Avast, me proud beauty! All t' parts are readily available as well includin' t' decals.

Construction:
High quality balsa nose cone, arrr, plywood ring, me bucko, me hearties, me hearties, and eye bolt were supplied by Sandman. Arrr! Ahoy! Estes BT-80, 24mm heavy duty motor tube, shiver me timbers, two lite-ply centerin' rings, shiver me timbers, arrr, matey, fins are 3/16" balsawood, Keelhaul®©™® shock card, and motor retainer hardware. Begad! 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. T' light-ply centerin' rings were mounted a 1/4" from t' top and bottom o' t' motor tube. I created a nice epoxy micro balloon fillet on both sides o' each centerin' rin' for strength. Begad! I drilled a 3/16" hole in t' top centerin' for me 1/8" Keelhaul®©™® shock cord t' go through. Aye aye! T' Keelhaul®©™® shock cord ties around t' motor tube betwixt t' upper and lower centerin' ring. Avast, me proud beauty! Avast! I cut a BT-80 t' t' length of 13.5". Avast, me proud beauty! I hardened each end o' t' BT with thin CA for strength. T' next step be t' I fill t' spirals. Ahoy! After sandin' t' BT, t' tube be marked for t' fin locations and t' launch lugs. Ya scallywag! Avast! T' bottom launch lug is flush with the bottom o' t' BT. T' upper lug is 4-3/8" from t' top o' t' BT. Aye aye! Each launch lug was 3/16" diameter and 9/16" long. Aye aye! T' motor mount be glued into t' BT usin' wood glue that created a nice fillet around t' top centerin' ring. A wood glue fillet be also created around t' bottom centerin' ring. Avast, ya bilge rat, me proud beauty! T' fins were cut from hard 3/16" balsa and shaped. Blimey! T' fin and launch lugs were glued on with epoxy. Well, blow me down! Begad! 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. Avast, me proud beauty! Once dry they were sanded smooth and coated usin' thinned spackle that was brushed on t' fill t' wood grain. Ahoy! Arrr! T' filler was sanded off and the rocket was primed with two coats o' Duplicote High Fill primer sandin' betwixt coats. T' nose cone was painted black usin' two coats o' old formula Krylon spray. Avast, me proud beauty! 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. Ahoy! Once shipshape 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. Avast! Overall it looks fantastic.

Flight:
I designed this model t' fly on t' 24mm reloads such as t' E18, E28, ya bilge rat, shiver me timbers, F24, shiver me timbers, or F39. T' first flights I used a E28-4 and it worked perfectly. Ya scallywag! Blimey! T' first boost be nice and straight with no stability issues. Ya scallywag! Blimey! T' E28 produced a very respectable altitude. Begad! Blimey! T' 24" parachute worked good but a little too slow t' brin' it down. Aye aye! Blimey! A smaller chute or a spill hole would be required for windy or high thermal activity days. Begad! Blimey!

Recovery:
Since t' fins on this upscale start t' get large, matey, I would use t' through t' wall method next go around. Avast, me proud beauty! Although I feel very good with me method t' attach fins and strengthen them with fillets, arrr, TTW is king.

Summary:
This is a very easy rocket t' upscale but is a rewardin' project. T' Der Red Max is a classic that flies great up or downscaled. Avast, me proud beauty! Blimey! In addition you can't find a cooler set o' decals on a rocket anywhere.