Descon U.S.S. Vesta

Scratch - U.S.S. Vesta {Scratch}

Contributed by Ryan Coleman

Manufacturer:

U.S.S. Vesta
(Contributed - by Ryan Coleman)

Idea

Once again, ya bilge rat, me imagination and t' spare parts layin' around got t' better of me, shiver me timbers, and t' U.S.S. Ahoy! Well, blow me down! Vesta was born. I think it looks futuristic and somewhat cool. Ahoy! T' capability t' cluster with some extra mini's also adds some excitement t' t' design. Avast!

Diagrams

Here's a small diagram view o' t' completed rocket: [Diagram]

Pictures

Here's an unpainted but completed picture:
[Rocket Pic]

Flight Report

First flight. Ya scallywag! May 30. Nice day, arrr, no wind, arrr, ya bilge rat, sunny. Flight on B6-4 severely arced (as somewhat expected). Begad! Ejection was at apogee and it recovered nicely on a 18" chute. As a result, I'm tryin' t' consider how much weight would be necessary on t' underside for it t' fly straight. Maybe it just needs more power. Blimey! Begad! Definitely less than a B6-4 is nay recommended. Blimey! Unfortunately, the camera be nay cooperatin' and t' pictures will probably nay come out.

Second flight. Begad! June 28. Arrr! Blimey! Hot, me hearties, light breeze. Went for t' cluster, 1 B6-4, and 2 A3-4Ts. Twisted leads together (the motors are mounted close enough). Ahoy! Ya scallywag! Blimey! I used a Estes Command Control (one o' their few decent products), shiver me timbers, any 12 volt or higher system is recommended for clusters. All three lit, arrr, model jumped off t' pad. T' model did nay arc this time, me bucko, ya bilge rat, it went almost straight up, arrr, slightly rolling (cool!). Ejection was just about a half-second before apogee, me hearties, a B6-6 for the main motor might be o.k. Avast, me proud beauty! Avast, me proud beauty! Blimey! T' 12" parachute brought t' model down. Arrr! Because of t' slightly premature ejection, arrr, and perhaps a shock cord that could be a little longer, arrr, a dent developed at t' top end o' t' tube. It be bent back into place without damage. Avast! Still no flight picture :(

Parts

12" length o' BT-50
3" length o' BT-20 (main motor mount)
20-50 Centerin' Rings x 2
Engine block for BT-20
BT-50 45' diagonal cut from 2 11/16" t' 1 11/16" (Upper)
BT-50 45' diagonal cut from 2 1/4" t' 1 1/4" (Lower)
1 7/8" BT-5 (Upper)
7 1/8" BT-5 (Lower)
Engine Block for BT-5 x 2
5 3/8" BT-5 (Upper Wing)
Endcaps for BT-5 from middle o' Centerin' Rings x 2
1 3/8" BT-5 Paper Conical NoseCone
3 3/8" Small Plastic Sticks x 2
Small Strips o' thin Cardstock
30" length o' 1/8" Sewin' Elastic
Paper Shock Cord Mount
Launch Lug
12" or 18" plastic or mylar parachute
4 1/8" length o' BT-4 (10.5 mm)
2" length o' BT-2 (6 mm) x 2
2 1/4" length o' BT-2
2 5/8" length o' BT-2 x 2
3 1/4" length o' BT-2 x 2
3 3/4" length o' BT-2
Endcap for BT-4
Endcap for BT-50
1/2" length o' BT-50
some Clay
1/8" Balsa Stock

Here's a scan o' t' Fins:
[Template]

Construction Outline

Main Body

Engine Mount

Glue t' Engine Block into t' Front o' t' Motor Mount and one rin' at the top and one 3/8" from t' back. When dry, arrr, glue t' whole thin' so it sticks out 3/8". Well, blow me down! Add an engine hook if you like, shiver me timbers, I don't.

Nose Cone and Recovery Systems

Instead o' a typical nosecone, matey, which I had none of, shiver me timbers, I opted for something completely different. Ya scallywag! T' BT-4 tube forms t' center o' t' nosecone and the multiple BT-2 tubes go around t' sides t' center it perfectly in t' BT-50. All t' ends o' t' tubes are even. Begad! Well, blow me down! I glued mine in t' followin' order:

T' second shortest length
T' either side o' it, t' shortest length
T' third shortest lengths on both sides o' those
T' second longest lengths go next
T' longest length. Ahoy! This is nay a perfect fit, me hearties, but it still looks cool

Glue t' shockcord t' t' inside o' t' BT-4. Avast! Begad! Push some clay in t' top just for stability safety for t' paranoid. Arrr! Then glue on t' front BT-4 endcap. Cut a small hole in t' BT-50 endcap, thread t' shockcord through it, shiver me timbers, ya bilge rat, and then glue it on. Arrr! Ya scallywag! Glue t' BT-50 rin' 7/8" from t' back o' t' 'nose' t' act as a forward stop. Avast! By t' way, ya bilge rat, these multiple tubes are NOT missile launchers, phasers, laser beams, arrr, nuclear weapon devices, ya bilge rat, or cannons o' any sort.
I used a long length o' sewin' elastic and a typical paper mount. Aye aye! I also use snap swivels on all me parachutes, so I'll just throw an old one on. 12" will be fine for smaller fields, 18" for larger ones.

External Assemblies

Left and Right 'wings'

T' outer parts o' each win' go forward. Avast! I held mine together with masking tape and glued them together. Aye aye! Begad! Blimey! Sand your favorite airfoil t' each after you glue them. Avast, me proud beauty! Begad! Blimey! Also, a small triangle will need t' be cut off t' back o' each outer portion. Sand and Seal usin' your favorite method and then attach on opposite sides o' t' tube 3/8" from t' rear. Arrr! I angled mine 'down' about 3 or 4 degrees.

'Upper' Assembly

Glue a BT-5 engine block into t' front o' t' shortest tube. Then glue the half-block made from balsa or cardstock into t' same end. Glue the assembly with t' blocks at t' same end as t' diagonal cut into t' longer of the side BT-50 pods. Well, blow me down! Blimey! It should stick out 3/8" like t' main tube. Ahoy! Blimey! Avast! Blimey! The closed half should face t' tube. Begad! Blimey! Aye aye! Blimey! When it's all dry, glue it t' t' main tube between t' wings so that t' end o' t' BT-50s and t' end o' t' Engine Mounts are even.
Sand and Seal t' Upper Fins. Aye aye! Begad! T' cross goes in t' slot in t' other piece. Arrr! It should be in t' middle. Begad! Glue t' root o' t' fin so t' cross piece is away from t' main tube and down t' t' top o' t' longer BT-50 piece.
Take t' middle length o' BT-5. Begad! Glue t' cone into it, slanted down so one edge is even with t' tube. This tube does NOT hold a motor. Well, blow me down! Arrr! It is for aesthetic purposes only. Begad! Glue it t' t' top o' t' upper fin and cross piece so it sits 1/2" back from t' back o' t' cross piece.
Lastly, glue t' plastic sticks t' either side o' t' cross piece so they look like forward pointin' antennae. Blimey! These are NOT guns, lasers, me hearties, cannons, or any weapon at all.

Lower Assembly

Start by gluin' t' smaller diagonal cut BT-50 piece t' t' 'underside' of the tube so it is even with t' main tube. Arrr! Push t' Engine Block into t' back of t' tube. Begad! Cut or punch a vent hole at t' top and glue t' whole endcap onto the front o' t' tube. Begad! Aye aye! When dry, matey, glue it t' t' underside o' t' tube 3/8" from t' aft through t' diagonal cut tube. Blimey! T' vent hole should face out.
Sand and seal t' lower fin. Glue it t' t' Diagonal cut BT-50 and the BT-5 tube as far back as will fit.

Launch Lug

Glue half t' lug next t' a wing. Glue t' top half 8" up t' tube. Aye aye!

Decor

Strips o' Cardstock

I used those strips o' cardstock (from a Estes Sidewinder kit) t' add some futuristic lookin' details t' t' main body. I cut down t' biggest piece to 3/4" x 3 1/8" and wrapped it 2" back from t' nose. Begad! I then used a 6 3/8" x 1/8" strip from t' upper diagonal tube t' t' wrap I just put on.

Paint

My g/f has been complainin' that all me 'futuristic' type rockets look too dismal (shades o' grey), shiver me timbers, so I gave me U.S.S. Avast, me proud beauty! Vesta a white undercoat as a prep surface for silver. Ahoy! Ahoy! I masked off most o' t' model, me hearties, except for some 'wing' areas, me bucko, t' upper diagonal cut BT-50, ya bilge rat, some fins, and a small stripe around the cardstock ring. Painted silver over t' white, shiver me timbers, then removed all t' tape. Ya scallywag! I then painted t' inside o' t' 'nosecone' tubes black.

Flyin' Tips

Single-engine flying.

A B6-4 is suitable for low-altitude test flights. Well, blow me down! A C6-5 should be just fine. You'll have t' friction fit t' motor, which isn't hard. Aye aye! Begad! Just wrap maskin' tape around t' motor until you can't yank it out with your fingers. Prep t' rocket just like any other, a bit o' maskin' tape may be needed t' get t' nose cone fit a little tighter. Avast! Ya scallywag! I'd use a 12" chute or maybe an 18" if you have the field. No damage was taken t' t' rocket on either landin' on a 12", though. Begad! Avast!

Clustered flying

Because o' t' asymmetrical nature o' this rocket, it probably isn't the perfect first cluster. Ahoy! Dependin' on your skill, you could try it for your first cluster if you want.
Here are t' motor combinations I'd stick with.
B6-4 & 2x1/2A3-2T
B6-4 & 2x1/2A3-4T
B6-4 & 2xA3-4T
B6-6 & 2xA3-4T
B6-4 & 2xA10-3T
B6-6 & 2xA10-3T
C6-5 & 2x1/2A3-2T
C6-5 & 2x1/2A3-4T
C6-7 & 2xA3-4T
C6-7 & 2xA10-3T
Remember, shiver me timbers, a B and two 1/2As is equal t' a mid-C motor. Arrr! A B and two As is equal to a C. Ahoy! Well, blow me down! A C and two 1/2As or As is equal t' a low D. Ya scallywag! Ahoy! This will take t' rocket pretty high. Well, matey, blow me down! I also haven't flown it yet in that configuration. If you built carefully, even white or yellow glue with fillets can hold up t' low-D power. Blimey!
This rocket is an in-line cluster, requirin' no extra clips t' launch, matey, extra a heavy duty battery is mandatory. Begad! 12 volts minimum. Friction fit t' main motor first, ya bilge rat, and then t' sidepods. Arrr! I lined me motors up at t' back end. Now, startin' with one o' t' mini's, put in t' igniter very carefully and then insert plug. Ahoy! Next, put t' igniter/plug into t' main motor. Ahoy! Do t' last mini now. Ahoy! I installed t' igniters so that t' little paper strips are parallel to each other, and perpendicular t' t' line o' motors. Avast! Now take one lead from each motor, me bucko, and twist together and away from t' other. Blimey! Do t' same with the remainin' three.
Install t' parachute and waddin' like usual. Ahoy! Put t' whole thin' on t' rod, hook up t' clips well t' each twisted threesome o' leads. Launch it. If they all light, me hearties, me bucko, you're in luck. Blimey! Begad! If only one or two light, you may be in trouble. This is why you are careful t' insert t' igniters properly.
A Cluster will look pretty cool. Avast! A good picture is obtained by takin' it from the side, me hearties, so (hopefully) all three plumes will be visible. (Even though I haven't managed it yet on this rocket).

Future for t' U.S.S. Well, blow me down! Vesta

Hopefully I'll be able t' test out some more motor combos. Arrr! Perhaps t' C & 2xA will be next t' see if it will hold. Arrr! If anyone has any problems, questions, or comments, shiver me timbers, contact me by email below. Avast! rcoleman@erinet.com

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