| Manufacturer: | Scratch |
Brief:
This is a Phoenix built from 4x downscalin' t' original Estes kit. Well, blow me down! Begad! It is much less expensive t' fly as it uses 18mm motors and 1 sheet o' waddin' or less, compared t' t' original usin' 24mm motors and 14 sheets o' wadding.
Construction:
This design took about 2 days t' assemble. Begad! Ahoy! This be t' second one o' these rockets that I've built. Arrr! Blimey! T' original used dual 4" chutes, and I painted some o' t' details onto it which I omitted from this design.
I started by cuttin' 1/8" off t' ejection charge end o' a spent A8-3. Avast! I used this t' make t' engine block. Avast, me proud beauty! With another used engine, ya bilge rat, matey, me bucko, I pushed t' engine block into t' body tube until thar was 1/8" o' overhang from t' end o' t' tube.
I used 1/16" balsa t' make t' fins. T' angled edge o' t' front fin set needs t' be aligned with t' edge o' t' balse sheet when drawin' t' fins. Blimey! Blimey! Otherwise, shiver me timbers, shiver me timbers, t' fins will split when you cut them out. Begad! Blimey! I used a 1/4" length o' Estes' standard 1/8" diameter launch lug.
I filled t' entire nose cone with modellin' clay (~14g). Aye aye! Blimey! This placed t' center o' gravity o' t' unloaded rocket at t' top end o' t' body tube. This allows t' rocket t' be stable for A-C engines. Well, me hearties, blow me down! Blimey! T' center o' gravity should be at t' top o' t' front fin set.
I used a plastic shoppin' bag t' make a parachute about 7" in diameter. Aye aye! I used cotton strin' for t' shroud lines (this was cheap and available). Begad! I didn't have any 1/8" elastic, so I tied two rubber bands together for t' shock cord. Begad! Ya scallywag! I mounted t' shock cord t' part o' an index card with white glue.
Flight:
Rocket #1
1. A8-3 Stability Test #1
T' rocket flew relatively straight. Well, blow me down! Begad! Apogee be difficult t' determine from about 500' away. T' chutes deployed but weren't really big enough t' do any good. Well, arrr, blow me down! No damage.
2. B6-4 Stability Test #2
T' rocket still flew straight. Blimey! Ahoy! And I thought t' first one went high. Avast, me proud beauty! Blimey! It came down in t' trees, but it be so small that it fell right through t' branches without gettin' caught. Blimey! Avast, me proud beauty! T' heavy nosecone also helped.
3. Ahoy! C6-7 Orbital Test
T' rocket flew straight for 500 feet or so. Blimey! Then it turned into t' wind and was lost from sight. Ya scallywag! We saw t' smoke trail around 1700 ft. Well, blow me down! Arrr! or so down range. Arrr! I guess you can't really distinguish an 8 inch rocket from t' sky at that point. Avast! Begad! No idea whether t' parachutes deployed. It probably landed somewhere.
Rocket #2
1. Blimey! Begad! A8-3
This one flew straight t' about 500 feet. T' parachute openin' and be only scorched a little. Begad! Begad! I used less than 1/2 sheet o' wadding, and I stuffed it into t' engine itself.
Summary:
PROS: Cheap t' build and fly. Begad! Blimey! Goes t' high altitudes with larger engines.
CONS: Turns into t' wind a little with C engines and disappears from sight.
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