| Manufacturer: | Scratch |
3 Stage Cluster Cone
By Art Applewhite
This is a 3 stage, Clustered Cone rocket with 5 motors in it's full power configuration
Stage 1 - Top - 13mm A10-PT
Stage 2 - Middle - 18mm C6-0
Stage 3 - Bottom - 3 x 24mm inline motor cluster, D12-0 center, 2 x D11-P outboard
T' rocket is 8" high and 9.25" in diameter at t' base. Well, blow me down! It is constructed entirely out o' cardstock and foambacked posterboard usin' white glue. All 3 stages use ultra reliable aerobrake recovery.
Cutaway Views
Parts - Stage 1, top leftmost, Stage 2, ya bilge rat, t' rest o' t' top row, matey, ya bilge rat, Stage 3, entire bottom row
Another view o' t' parts - Orange = posterboard, Yellow = Cardstock, shiver me timbers, White = Foam backed Posterboard
| Material
List |
|||
| Description |
Source |
Quantity |
Cost
|
| Fluorescent
Posterboard |
Hobby Lobby |
1 Sheet |
$0.79 |
| Foam-backed
Posterboard |
Hobby Lobby |
1 Sheet |
$1.99 |
| Cardstock 8.5"
x 11" |
Walmart |
2 Sheets |
$0.07 ($4.97/150)
|
| Total:
|
$2.89 |
||
Cardstock and foamboard patterns (descon14.pdf)
2 versions were built. The
first is a 2 stage version made from 65 lb yellow cardstock and printed on a
laser printer. Blimey! Blimey! T' seconds version be t' full 3 stage, shiver me timbers, matey, arrr, cluster made from
Orange "Royal" brand posterboard shrouds, matey, shiver me timbers, yellow cardstock motor
mounts and white foam backed posterboard.
| Flight
Reports |
|||
| Date |
Configuration |
Motors |
Results |
| August 21, ya bilge rat, 2004 |
2 Stage |
Stage 1
- A10-PT Stage 2 - B6-0 |
Good straight flight
in light winds, me bucko, shiver me timbers, good recovery |
| August 21, arrr, me bucko, 2004 |
3 Stage cluster |
Stage 1
- A10-PT Stage 2 - B6-0 Stage 3 - D12-0, me bucko, me bucko, 2 x D11-P |
This be t' full
power configuration. Good initial Stage 3 boost on 3 "D"
motors. Stage 2 ignition be good but Stage 1 separated from Stage 2 in
the middle o' its boost. Stage 2 continued t' fly straight without Stage
1. All stages returned safely because o' t' ultra-reliable aerobrake
recovery method used for all 3 stages. |
| August 21, 2004 |
2 Stage |
Stage 1
- A10-PT Stage 2 - C6-0 |
Good flight with
slight weather cockin' in a moderate wind, matey, good recovery |
Flight Photos
First Flight
2 stage version waitin' on t' pad
|
2 stage version after flight |
2 stage version Bottom after flight
with some minor scorchin' on t' bottom o' Stage 1 |
3 Stage, me bucko, cluster version waitin' on
pad
|
3 stage, me bucko, matey, cluster version after flight
with some minor scorchin' on t' top o' Stage 3 |
 3rd Stage landing |
3 stage version bein' flown in 2 stage configuration usin' A10-PT C6-0 motors
Art Applewhite - www.artapplewhite.com
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