Scratch - Firestorm {Scratch}

Descon Firestorm

Scratch - Firestorm {Scratch}

Contributed by Greg Dietlein

Manufacturer:

Rocket Pic My rocket was inspired by an Estes Sliver. Arrr! Blimey! Blimey! I planned t' upscale it usin' a 3" mailin' tube for t' body. Begad! Blimey! 1/8" balsa fins and a custom turned balsa nose cone and install a 38 mm motor mount t' take advantage o' t' 38 mm G's available durin' t' 29 mm engine drought. Blimey! T' fins will be overlayed with 3/4 oz fiberglass and epoxy resin.

T' paint was designed t' make t' rocket highly visible durin' flight and recovery.

For decals , arrr, me hearties, I planned t' make them on me PC usin' a clear Avery 8 1/2" x 11" mailin' label and I will water proof them with a mat spray used for inkjet photos. I have done this before and it worked really well. Unfortunately, ya bilge rat, me printer had t' go in for repairs and t' decals weren't ready at flight time.

To ensure a stable flight, shiver me timbers, I made slight increase in fin area and added 3" t' t' body length which will help with t' static margin due t' t' weight o' t' 38 mm motor mount and a 38 mm motor. Blimey! (safety first). Avast, me proud beauty! I estimate an altitude o' 1800' on a CTI G60.

This rocket can't be simmed by RocSim so I be forced t' do it t' old fashioned way, ya bilge rat, me bucko, long hand calculations and a swin' test. T' rocket passed t' swin' test with flyin' colors and so I be set t' launch.

T' first flight was powered with an Aerotech F40 usin' a 6 second delay. Aye aye! Blimey! I estimated t' altitude at about 1800'. T' chute opened on schedule, slightly after apogee, arrr, unfortunately it landed on a rock and a fin was in need o' some glue.

Rocket parts

Rocket Pic Nose cone - Custom, matey, Material: Balsa - 1 required

Nose shape: Solid Ogive, Len: 6.000 In., Dia: 3.000 In.
Body insert: OD: 2.650 In., Len: 1.250 In.
CG: 5.739 In. Well, blow me down! , ya bilge rat, Mass: 3.266 oz.

Body tube - Custom, arrr, Material: Cardboard - 1 required

OD: 3.0 In. Ahoy! Blimey! Avast! Blimey! , ID: 2.7 In. Avast! Blimey! , Len: 25In.
CG: 12.5 In. Arrr! , matey, Mass: 13.368 oz.

Custom Fin set - Custom, Material: 1/8" Balsa - 2 required

CG: 7.045 In. , Mass: 0.731 oz.

Custom winglets set - Custom, Material: 1/8" Balsa - 4 required

CG: 2.146 In. Begad! Avast, me proud beauty! , arrr, Mass: 0.286 oz

Motor mount tube Public Missiles Ltd. Aye aye! Blimey! - PT-1.5 - Airframe tube, ya bilge rat, arrr, Material: Kraft phenolic - 1 required

OD: 1.649 In. Well, blow me down! Well, arrr, blow me down! Blimey! , ID: 1.525 In. Avast! Blimey! , Len: 14.625 In.
Location: 0.000 In. Begad! Begad! From t' base o' Body tube
CG: 7.313 In. Ahoy! Avast, shiver me timbers, me proud beauty! , Mass: 2.505 oz.

Engine Retainer - 1 required