AEON

Tim Breland's Descon-14 Entry

Talk about last minute, this thin' almost had t' fly with wet paint. ;)

My design is called t' AEON.

One definition o' Aeon is "an indefinitely long period o' time", shiver me timbers, me bucko, which is about how long this rocket might stay in t' air, me bucko, me bucko, indefinitely.

Stickin' with t' theme, t' Aeon burns a total o' 6 motors. Avast, me proud beauty! Avast, me proud beauty! It is clustered and staged, me bucko, shiver me timbers, usin' 5 motors in t' booster and 1 in t' sustainer.

Construction is pretty simple. Ya scallywag! A parts list and fin patterns are included in t' pdf file. Blimey! Blimey! Pretty much all o' me parts came from Fliskits, ya bilge rat, t' most unique bein' t' 5 motor cluster mount which has a central 24mm mount surrounded by 4 13mm mounts.

Sustainer:

Startin' with 2 BT70 tubes standard 17.5" in length, me bucko, I cut a 70mm long piece from 1 tube t' use as t' booster. T' remainder o' that tube be coupled t' t' other tube t' make t' sustainer body, with a balsa nose cone on top.

T' sustainer got a standard 24mm motor mount, matey, makin' sure t' put t' aft centerin' rin' about 1" from t' end t' allow room for t' stagin' coupler. Avast! Blimey! Avast, me hearties, me proud beauty! Blimey! This motor mount is 4" long with an engine block in place allowin' it t' hold and Estes E size motor.

T' sustainer fin pattern is in t' pdf file. 4 fins were cut from some high quality 1/8" balsa. Arrr! Begad! Some may prefer thicker balsa or even plywood, shiver me timbers, but I wanted t' keep t' weight down. Ya scallywag! T' fins were mounted with t' root end about 10mm up from t' end o' t' body tube. This was done just for t' look o' a gap betwixt t' sustainer and booster fins.

A basic recovery system be installed; 4' piece o' 1/4" elastic attached with t' tri-fold method and t' a screw eye in t' nose cone.

An 18" mylar chute from Rockethead Rockets be me choice o' recovery.

Booster:

For t' booster I started by assemblin' t' 5 motor cluster mount. Begad! Arrr! T' central tube included with t' kit was cut down t' 70mm long. Well, blow me down! This kit includes 4 centerin' rings. Blimey! I left t' forward CR out due t' t' shorter central tube, me hearties, matey, and t' allow room for t' stagin' coupler. Begad! I also left out t' central motor block t' allow for staging. T' motor mount was then glued into t' 70mm piece o' BT that I cut earlier, flush with t' end. Well, blow me down! I then glued t' stagin' coupler into t' forward end. Arrr! Again, shiver me timbers, 4 fins were cut from 1/8" balsa and attached t' t' booster (pdf file has pattern).

Finishing:

After priming, arrr, I applied a basecoat o' Krylon Metallic Silver. Begad! Avast! I then masked off t' fins and nose cone, me hearties, and finished t' rest o' t' rocket with a candy green. Arrr! Unfortunately, me bucko, t' tape marked t' silver, me bucko, matey, and I may have t' repaint one day.

Flight report:

After t' paint dried, arrr, shiver me timbers, arrr, I prepped her for flight. I knew it would get dark soon, shiver me timbers, so I opted nay t' go fully loaded. Avast, me proud beauty! Arrr! I went with a D12-0 surrounded by 4 A10-P's in t' booster, staged t' a C11-7 in t' sustainer. Arrr! Aye aye! This added a good bit o' weight and I wasn't comfortable with t' Cg location. Ahoy! I then drilled 4 - 3/16" holes in t' base o' t' nose cone, added some BB's and secured with epoxy. Avast, me proud beauty! Begad! This put t' Cg at about 17" from t' bottom, which is more than enough stability margin. Blimey! So off t' fly. Avast! Avast! By now it's gettin' dark, although nay as dark as t' pics show, but I'm still worried about recovery.

I set her up, push t' button, me bucko, and whoosh, ya bilge rat, man be that fast. Ahoy! Begad! Pics show nothing. Arrr! I obviously didn't get t' rocket in t' pics, ya bilge rat, arrr, me bucko, because they're just black. I would guess it went about 1000', but it was probably lower, and I just couldn't see good. Aye aye! Well, I saw t' ejection, me hearties, and thank goodness for mylar chutes. Without t' shimmer from t' mylar I probably would have lost it. Begad! It came down in t' field next t' me home about 300 feet away. Ahoy! Luckily t' grass was cut over t' weekend and I be able t' find it pretty easily. Blimey! I can't wait t' launch it with an E9 in t' sustainer.