| Manufacturer: | Scratch |
(Contributed
- by Alex Immerman)
 WELCOME |
||||||||||||||||||||||||||||||||||||||
| To the page of El Diablo III | ||||||||||||||||||||||||||||||||||||||
| The El Diablo III is a 3 engine cluster rocket that uses two 18mm strap on boosters (SOBs) and a 24 mm core. Before going in to depth about the cluster design I would like to give credit to Morgan Hendry who designed some strap on boosters and put them on EMRR. I suggest you refer to this site for info on how to build the SOBs. I used the same basic design for the boosters with a few modifications. Also note that the rocket pictures I used on this site were taken with a nose cone different from the one in the specifications, this is because the original NC was lost at a recent launch after a parachute deployment failure. The rocket is designed for low altitude, slow, and impressive flights. I am not sure 100% that the following are the correct part names/numbers but I'll do my best: | ||||||||||||||||||||||||||||||||||||||
Main Rocket Body Tube: Estes BT-60 (85 inches) Nose Cone: Estes PNC-60AH (the Mean Machine NC) Fins: 3/16 inch balsa click HERE for templates Shock cord: Estes large elastic Centering Rings: Estes cardboard Parachute: 24 inch octagonal Launch Lugs: 1/4 inch Strap On Boosters -(2x) Body Tube: Estes BT-20 Nose Cone: Estes PNC-20 (short cone shaped) Shock Cord: Estes small elastic Streamer: 1 foot- orange marking tape Attchment: 1/4 inch wood dowel (2x each, 2 inches long) Attachment: 2x2x7mm balsa wood Attachment: 1.4 inch drinking straws 2.5 inches long- 45 degree angle on leading edge |
||||||||||||||||||||||||||||||||||||||
| This Rocket began as a Mean Machine.
However it suffered some serious damage after landing tail first into pavement
at A2Z Rocket Day (with CMASS) in Hatfield, MA a few years ago. After
consideration, I decided to scrap the parts and use the BTs and NC to make an
all new rocket. I cut some new fins (click
HERE for the fin patterns) and added
clipped AMRAMM style fins halfway up the rocket primarily for aesthetics .
Despite the upper fins the rocket is still pretty stable, even in high wind. If
you choose to build your own "El Diablo III," you will find that you
only need a part of one of those Estes BT-60 tubes. This is where I wound up
cutting off the fin can on the original Mean Machine. I've found it easy to cut
BTs with rotationg saws. If they are available to you use it: just go quickly
(but carefully) and it should not rip apart the tube. To date my rocket has
flown on D12s alone and D12s with B6-0 outboards. I have yet to try C5-3s but I
think they would provide some nice additional lift-off speed. |
||||||||||||||||||||||||||||||||||||||
| Here is the first cluster flight of the El Diablo III at a CATO launch. Only one B6-0 fired however. The main Ejection failed and the rocket utilized GLIDE RECOVERY and luckily sustained very minor damage! | ||||||||||||||||||||||||||||||||||||||
| Photos | ||||||||||||||||||||||||||||||||||||||
| Here are some pictures to give you a visual of the many parts of the rocket. Click the thumbnails to enlarge the images. | ||||||||||||||||||||||||||||||||||||||
 |
||||||||||||||||||||||||||||||||||||||
 |
||||||||||||||||||||||||||||||||||||||
| El Diablo III | ||||||||||||||||||||||||||||||||||||||
| Recovery | ||||||||||||||||||||||||||||||||||||||
 |
||||||||||||||||||||||||||||||||||||||
| SOBs | ||||||||||||||||||||||||||||||||||||||
 |
||||||||||||||||||||||||||||||||||||||
 |
||||||||||||||||||||||||||||||||||||||
| Broken Down | ||||||||||||||||||||||||||||||||||||||
| Fins and SOBs | ||||||||||||||||||||||||||||||||||||||
Sponsored Ads
 |
 |