Cloud 9

Formula

Chemical

Percentage

Chemical

Percentage

AP 400 μm

35.00%

AP 90 μm

28.00%

Bismuth (III) Oxide 2 μm

8.00%

Al 30 μm

5.77

Al 5 μm

1.33

Magnesium 325 mesh

3.90%

HTPB R-45HTLO (Eq. Wt. 1234)

11.82%

HX-878 Tepanol

0.30%

Lecithin

0.20%

CAO-5

0.10%

IDP

3.54%

 MDI (Eq. Wt. 185)

2.04%

PDMS

1 drop / 500 g propellant

 

 

Burn Characteristics 

Characteristic

Value

Characteristic

Value

ISP

 

a

0.0199 in/s

n

0.353

Density

 

Gamma

 

Molar mass

25.59 g/mol

Specific heat ratio

1.218

Chamber temperature

2670 K @ 1000 psi

C*

4730 ft/s

Mixing Procedure

Step

Action

Step

Action

1

 

2

 

 

 

Pouring Procedure

Step

Action

Step

Action

1

 

2

 

 

Mixing Spreed Sheet

 

 

Mixing Log

Mixing Date

Serial Numbers

Site

Result

Mixing Date

Serial Numbers

Site

Result

 

 

 

 

 

 

Motor Log

Identifier

Date

Site

Result

Identifier

Date

Site

Result

 

 

 

 

 

 

Notes

Cloud 9 is a dense, moderately efficient, pourable propellant. It is an all-around medium performance propellant that processes nicely and is to be used for booster propellants and hobby flights.

 

Pictures 

image-20240201-062059.png

 

Links

https://breakingballistics.weebly.com/cloud_9.html

Cloud 9 - Google Drive