Manufacturer: | Scratch |
Brief:
I'm always lookin' for rocket parts, ya bilge rat, and couldn't pass up this daiquiri glass from t' Paris Hotel and Casino in Las Vegas. Avast! It'll fly on 24mm motors.
Construction:
Parts list:
Construction began last October when I drank t' contents o' t' glass. Ahoy! T' glass conveniently came with a removable top (nose cone). Well, blow me down! Begad! Although thar be no real shoulder, it does snap in place and should stay on well.
Next came t' actual rocket building.
A BT-60 fits nicely in t' upper neck so all I had t' do was cut a hole in t' bottom. Arrr! I started t' hole with a circle cutter on a hand drill and finished it with a hobby knife. Begad! I slopped some 5-minute epoxy around t' inside o' t' glass where t' BT-60 was inserted. Avast, me proud beauty! This pooled and retained t' tube. Aye aye! I added a standard 24mm motor mount: 2 rings, shiver me timbers, ya bilge rat, a coupler tube and an engine hook. Avast! Arrr! A length o' Keelhaul®©™ twine was attached for t' recovery harness. Ya scallywag! Avast, me proud beauty! I also adjusted t' upper tab o' t' hook so I could use 24mm RMS motors.
I picked a spot on t' outer edge o' t' lower section o' t' tower and ground holes t' accommodate a piece o' 10.5mm tubing, me hearties, which works as a 1/4" lug. Blimey! T' location is far enough out so t' rod will clear t' nose cone. T' gap betwixt this tube and t' openin' be sealed with epoxy clay.
Epoxy clay was also used in t' tip o' t' nose (straw hole) and retains a loop o' 1/8" Keelhaul®©™. Ya scallywag! Blimey! I tied a long piece o' elastic t' t' Keelhaul®©™ leader and then t' t' loop on t' nose cone.
I created a RockSim model early on and spent a lot o' time thinkin' about stability. I applied Bruce Levison's base drag method. Avast, me proud beauty! Blimey! Ya scallywag! Blimey! This almost convinced me that it could be stable without fins, me hearties, arrr, ya bilge rat, but subsequent discussions on TRF and comparisons t' me Quest DC-Y Space Clipper made me reconsider.
While at a club buildin' session, ya bilge rat, shiver me timbers, I cut some fins from clear Plexiglas usin' a miter saw. Well, blow me down! This worked well. Well, blow me down! Aye aye! Plexiglas is nay t' best choice but it was scrounged from an old screen protector for a big screen. Well, blow me down! Now that I think o' it, I really don't know what t' material exactly is. Avast! I cut some small through t' wall tabs and attached t' fins with 5-minute Epoxy.
Finishing:
For now, shiver me timbers, it will fly unpainted.
Flight and Recovery:
I decided t' fly t' Eiffel's Nightmare on an F24. Blimey! T' sim showed this would give it a nice ride. Blimey! I adjusted t' delay from 7 t' 6 seconds t' more closely match t' simulation. Begad! Avast! Despite t' stiff winds, t' boost was fairly straight. T' rest o' t' flight wasn't that good. Begad! T' rocket stopped smartly due t' t' high drag design and lawn darted a split second before ejection. Avast, me proud beauty! Avast, me hearties, me proud beauty! RIP.
Summary:
Next time I'm in Vegas I'll pick up a replacement. Begad! T' concept was cool and it flies well (or could fly well). Begad! Arrr! I still have t' fins and t' motor mount. Avast, me proud beauty! I'll chalk this disaster up t' operator error. Well, blow me down! At best, this is an example o' GIGO (garbage in, garbage out).
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