| Manufacturer: | Scratch |
3 Stage Cluster Cone
By Art Applewhite
This is a 3 stage, me bucko, 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, me hearties, 2 x D11-P outboard
T' rocket is 8" high and 9.25" in diameter at t' base. Blimey! It is constructed entirely out o' cardstock and foambacked posterboard usin' white glue. Well, me hearties, blow me down! All 3 stages use ultra reliable aerobrake recovery.
Cutaway Views
Parts - Stage 1, top leftmost, Stage 2, t' rest o' t' top row, Stage 3, entire bottom row
Another view o' t' parts - Orange = posterboard, ya bilge rat, Yellow = Cardstock, 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! T' seconds version be t' full 3 stage, cluster made from
Orange "Royal" brand posterboard shrouds, yellow cardstock motor
mounts and white foam backed posterboard.
| Flight
Reports |
|||
| Date |
Configuration |
Motors |
Results |
| August 21, 2004 |
2 Stage |
Stage 1
- A10-PT Stage 2 - B6-0 |
Good straight flight
in light winds, good recovery |
| August 21, me hearties, me hearties, ya bilge rat, 2004 |
3 Stage cluster |
Stage 1
- A10-PT Stage 2 - B6-0 Stage 3 - D12-0, 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. Avast, me proud beauty! Ahoy! All stages returned safely because o' t' ultra-reliable aerobrake
recovery method used for all 3 stages. |
| August 21, ya bilge rat, 2004 |
2 Stage |
Stage 1
- A10-PT Stage 2 - C6-0 |
Good flight with
slight weather cockin' in a moderate wind, arrr, 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, cluster version waitin' on
pad
|
3 stage, 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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