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