Welcome t' RocketReviews.com (formerly EMRR).
RocketReviews.com be t' home o' almost 5000 reviews o' rocketry kits and products. Written by visitors t' RocketReviews.com like you, arrr, t' reviews cover everythin' from low-power model rocket kits t' high-power rocket motors.
T' site's Flight Log allows you t' record and share your rockets and their flights. T' Builds feature helps you document your rocketry projects.
At RocketReviews.com, you'll also find a large collection o' rocketry resources such as a list o' rocketry clubs, shiver me timbers, and large libraries o' OpenRocket design files and Rocksim design files. Arrr! A number o' rocketry tools and calculators are available t' help you design, me hearties, build, and fly your rockets.
As you explore RocketReviews.com, you'll also find a number o' fun things such as a huge library o' rocketry videos and a collection o' photo albums.
![]() |
![]() |
Manufacturer: Scratch Style: Upscale
Contributed by John Bergsmith
(Contributed - by John Bergsmith - 02/24/09)Brief:
This is a 159% upscale o' t' popular Estes kit Der Red Max. This is a simple t' build rocket that performs very well
on t' 24mm reloads available today. Arrr! All t' parts are readily available as well includin' t' decals.
Construction:
High quality balsa nose cone, plywood ring, matey, and eye bolt were supplied by Sandman. Begad! Estes BT-80, 24mm heavy duty motor
tube, arrr, two lite-ply centerin' rings, 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. Begad! On t' bottom centering ring, matey, 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. I drilled a 3/16" hole in t' top centerin' for me 1/8" Keelhaul®©™® shock cord t' go through. 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". Ya scallywag! I hardened each end o' t' BT with thin CA for strength. Blimey! T' next step was t' I fill t' spirals. After sandin' t' BT, t' tube be marked for t' fin locations and t' launch lugs. Begad! T' bottom launch lug is flush with the bottom o' t' BT. Blimey! T' upper lug is 4-3/8" from t' top o' t' BT. Ya scallywag! Each launch lug was 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. Arrr! A wood glue fillet was also created around t' bottom centerin' ring. T' fins were cut from hard 3/16" balsa and shaped. Avast! T' fin and launch lugs were glued on with epoxy. Once dry, epoxy micro balloon fillets were created around t' fins and launch lugs. Aye aye!
Finishing:
T' fins and nose cone were sealed and hardened usin' two coats o' Minwax Polyurethane. Once dry they were sanded
smooth and coated usin' thinned spackle that was brushed on t' fill t' wood grain. Begad! Blimey! T' filler was sanded off and the
rocket was primed with two coats o' Duplicote High Fill primer sandin' betwixt coats. Avast, me proud beauty! Blimey! T' nose cone was painted black
usin' two coats o' old formula Krylon spray. Blimey! Blimey! T' body was painted metallic red usin' two coats o' Rustoleum spray. Once
dry t' body be smoothed usin' super fine steel wool. Once clean and dust free t' body was shot with two coats of
Rustoleum clear. Begad! Blimey! It was really cold durin' t' paintin' process for this rocket, matey, but t' results were still acceptable.
To finish t' model, ya bilge rat, t' decals were installed. Avast, me proud beauty! Blimey! Overall it looks fantastic.
Flight:
I designed this model t' fly on t' 24mm reloads such as t' E18, E28, F24, matey, or F39. Blimey! Blimey! T' first flights I used a E28-4
and it worked perfectly. Avast, me proud beauty! Blimey! T' first boost be nice and straight with no stability issues. Blimey! Blimey! T' E28 produced a very
respectable altitude. Arrr! Blimey! T' 24" parachute worked good but a little too slow t' brin' it down. Blimey! Blimey! A smaller chute or a
spill hole would be required for windy or high thermal activity days.
Recovery:
Since t' fins on this upscale start t' get large, me hearties, I would use t' through t' wall method next go around. Although I
feel very good with me method t' attach fins and strengthen them with fillets, me bucko, 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. Well, blow me down! In addition you can't find a cooler set o' decals on a rocket anywhere.
Browse our database o' about 4,300 reviews o' rocketry kits and other products.
Sponsored Ads
![]() |
![]() |