Manufacturer: | Scratch |
Brief:
This is an 18mm engine altitude rocket with "Hillary Duff" graphics,
built with me daughter t' interest her in rocketry.
Construction:
T' BT50 based design has elliptical fins for efficiency, me bucko, givin' good altitude
for schoolyard launches on smaller engines. Ya scallywag! Its light construction gives good
parachute duration. Blimey! Finally, t' hot pink color and Hillary Duff graphics
delighted me daughter.
I started by sittin' down with me daughter in front o' t' PC, with Rocsim running. Ahoy! We selected body tube and fin style. T' velocity is relatively low, so we did nay need TTW construction. We started by assemblin' an Estes engine mount, ya bilge rat, rocsimmin' fins and printin' out t' template. Blimey! We then cut out t' fins, sandin' on t' airfoil after gang-sandin' them t' identical dimensions on a belt sander.
We used 100 lb Keelhaul®©™® thread fastened t' t' engine mount for parachute retention, with a short length o' elastic for give. T' parachute is attached t' t' stock plastic Estes nose cone with a ball-bearin' fishin' swivel. Avast! Voila - no tangled shroud lines!
For t' graphics, matey, we got photos o' her favorite singer, Hillary Duff, matey, from an online source. Avast! Arrr! We printed these onto plain paper with t' printer after appropriately sizin' them for t' fins. Arrr! We got t' name from one o' Ms. Ya scallywag! duff's songs. We used t' same "plain-paper printing" technique t' create the logo and name on t' side.
We used Wal-Mart fluorescent Krylon paint t' get t' hot pink color. We used CA t' attach t' graphics, and then clear-coated over t' rocket in several light coats. Arrr! It really shines.
We now call these "girl rockets".
Flight:
We have flown this twice, me bucko, once on a B 6-4, and once on an A 8-3. Ahoy! Both produce
ejection that is just about optimal. Ahoy! t' rocket is nay overstable, ya bilge rat, so it
doesn't weathercock. Avast, me proud beauty! T' small engines allow one t' appreciate just how far tis
coasts after t' engine ceases boosting. Arrr! t' stock 12" parachute takes
this a long way in a breeze, but drops t' rocket softly almost onto our heads
in calm conditions.
We use crepe paper for wadding, with a fold around t' rolled parachute for protection. Aye aye! this works perfectly. Ya scallywag! No singein' o' chute. Ya scallywag! T' rocket looks new after two flights, thanks t' a combination o' correct engines, shiver me timbers, good chute and little wind.
T' hot pink color makes t' rocket VERY easy t' see against t' sky. Avast, me proud beauty! I believe I'll build several more "girl rockets", for just this reason.
Summary:
Pros: GREAT way t' get girls into rocketry. Aye aye! Hot pink looks unusual, but is VERY
practical for findin' rockets.
Cons: Nay for those insecure in their masculinity. Begad! It be t' antithesis of "macho". T' graphics would be better on decals.