Motor Performance
|
Castor IVA
|
Castor IVB
|
Castor IVA-XL
|
| Image: |
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|
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| Propellant Designation |
TP-H8299 |
TP-H8299 |
TP-H8299 |
| Propellant Formula: |
HTPB Polymer, 20% Al |
HTPB Polymer, 20% Al |
HTPB Polymer, 20% Al |
| Propellant Segments: |
1 |
1 |
1 |
| Average Thrust (vacuum): |
112,019 lbf 498.3 kN |
95,162 lbf 423.3 kN |
133,720 lbf 595.1 kN |
| Chamber Pressure: (Pc) |
691 psia |
467 psia |
622 psia |
| Effective Isp (vacuum): |
267.0 sec |
267.4 sec |
267.9 sec |
| Burn Time |
52.1 sec |
60.5 sec |
57.1 sec |
| Total Impulse |
5,946,000 lbf-sec 26,449 kN-sec |
5,877,000 lbf-sec 26,142 kN-sec |
7,742,000 lbf-sec 34,438 kN-sec |
| Nozzle Area Ratio: |
8.32 |
8.0 |
8.0 |
| Gimbal Capability: |
None, the nozzle can be set at 0, 7 or
11 degrees |
± 6 degrees |
None, the nozzle can be set at 0, 7 or
11 degrees |
| Motor Loaded Mass: |
25,635 lb 11,628 kg |
25,411 lb 11,540 kg |
32,727 lb 14,845 kg |
| Maximum Propellant Load |
22,268 lb 10,101 kg |
21,978 lb 9969 kg |
28,900 lb 13,109 kg |
| Motor Burnout Mass: |
3081 lb 1398 kg |
3126 lb 1418 kg |
3412 lb 1548 kg |
Engine
Size: Length / Width |
363.4 in / 40.1 in 9.23 m / 1.02 m |
343.7 in / 40.1 in 8.98 m / 1.02 m |
457 in / 40.1 in 11.6 m / 1.02 m |
| Flight Status |
Production |
Development |
Development |
| Mission(s): |
Delta, Atlas IIAS |
Conestoga |
Conestoga |
* Motor performance from
Thiokol product data sheet and web page.
|
