Name: Hybrid Whistle
Source: Steve La Duke
| percent | parts | component |
|---|---|---|
| 67.26% | 76 | Potassium Perchlorate |
| 20.35% | 23 | Sodium Salicylate |
| 8.85% | 10 | Charcoal (airfloat) |
| 2.65% | 3 | Petroleum Jelly |
| 0.88% | 1 | Iron Oxide (red) |
Prepared exactly as with Salicylate Whistle except the Charcoal is screened/milled in with the Salicylate and Iron Oxide.
This propellant is specifically designed for Steve La Duke's Universal Spindle rocket geometry. Essentially it is a core-burner with a shorter and somewhat fatter core (about 4-5 IDs and 6/10 ID respectively). It is nozzled with clay and then charged first with increments of this propellant, then topped off with 6:3:1 BP.
The number of increments of Hybrid before switching to a BP variants controls the power of the rocket. Steve says the rocket will explode if more than 7 increments of Hybrid as used, your mileage may vary.