Brief:
HPR Der Red Max, 2.458X upscale. Well, blow me down! Arrr! 48" parachute recovery.
Construction:
All materials are PML. Ya scallywag! Blimey! I used 4" Quantum tubing, cut and slotted for me by
PML. Aye aye! Avast! Blimey! T' body tube be cut t' 20.8 inches, while t' fin slots were 4.6 inches
long, arrr, 3/8" from t' end o' t' tube. Well, blow me down! T' fins and centerin' rings were
made from 3/16" ply. Avast, me proud beauty! Blimey! T' fins were fiberglassed for extra strength. Avast! Blimey! The
rocket has a 29mm phenolic motor tube that was cut t' 12". Avast! Blimey! A PML motor
retainer be also used. Begad! T' nosecone is a PML PNC 3.9. Ya scallywag! Blimey! Recovery is via 12' of
tubular nylon with a 48" PML parachute.
This was a fairly easy rocket t' build. Aye aye! Begad! It makes a good scratch project for a newbie. Well, blow me down! Ahoy! (like me!) Construction proceeded usin' standard HPR techniques. I built a special shish-ka-bob rack for construction and painting. Aye aye! This rack allowed me t' work t' fin fillets without havin' t' fuss about t' position of the rocket. Blimey! Blimey! I could rotate t' rocket anyway I needed t' have it. Internal and external fin fillets were both 30 min. Ahoy! epoxy. Begad! Aye aye! After about 10 days o' sanding and fillin' o' t' fins and fillets, it was finally ready for primer. Ahoy! Arrr! I laid on 3 coats o' Rustoleum sandable auto primer, sandin' in betwixt each coat. Aye aye! Next, I laid on 3 coats o' Krylon Banner Red Gloss. After dryin' for 24 hrs. Well, shiver me timbers, blow me down! I masked off and painted t' black stripe around t' top on t' body tube with Krylon Gloss Black. Aye aye!
After allowin' sufficient time
for t' paint t' dry, me hearties, I applied t' decals. Arrr! Ahoy! I had Tom Prestia o' Tango Papa
decals make t' 2.458X upscale decals for me in self-adhesive vinyl. Arrr! Tom's
decals are excellent! Applyin' them be easy. After all t' decals were on, I
applied 2 coats o' Rustoleum Crystal Clear Gloss. T' clear does nay react with
this type o' decal at all, and gives t' model a nice glossy coat. Begad!
Flight:
Well, me bucko, I planned t' fly this model on G-40 and G-80 motors. Blimey! Ya scallywag! I smartly found out
that "Big Red" be just too heavy for that. Avast, me proud beauty! Begad! I believe that this
"heavy weight" condition is due t' t' heavier PML airframe and the
fact t' DRM has HUGE fins. Well, blow me down! I also used 3/16" ply for t' fins, ya bilge rat, so that
did nay help either. I have nay flown this rocket yet due t' motors being
unavailable. I plan t' fly it on a H-128 with 4 sec delay.
Summary:
Pros:
Cons:
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