The Champion Aerospace Ignition Exciter Assembly, Model CH92133 is eligible by FAA-PMA for use on the Rolls-Royce Model 250 Series I, II, III & IV turbine engines as approved for replacement of the following exciter models:
Rolls-Royce
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Comparison to the OEM Ignition Exciter – Design Features | |
---|---|
Unison Ignition Exciter | Champion Ignition Exciter |
PN 10-614950-1 | PN CH92133 |
Housing – Solder sealed | Housing – Welded |
Weight – 1.4lbs | Weight – 1.4lbs |
HV switch – Spark Gap | Solid State Spark Gap (S3GTM) |
Life limited | Non-limited life |
Radioactive "Krypton 85" | Radiation free |
Repairable – No | Repairable – Yes |
Performance Comparison to the OEM ignition exciter | ||
---|---|---|
Characteristic | Unison Ignition Exciter | Champion Ignition Exciter |
Energy at the plug: | 0.4 joules nominal | 0.4 joules nominal |
In-rush current at 14Vdc: | 29A (peak) | 26A (peak) |
Input current at 29Vdc: | 1.3A rms (typical)* | 1.1A rms (typical)* |
Spark rate at 14Vdc: | 4.6 spk/sec. | 5.6 spk/sec. |
Spark rate at 29Vdc: | 12.3 spk/sec. | 12.1 spk/sec. |
Time to first spark at 14Vdc: | 215 msec. nominal | 200 msec. nominal |
Output current: | 825A (peak) | 805A (peak) |
Output voltage: | 11.3kV (peak) | 9.5kV (peak) |
Spark duration: | 36µsec. Nominal | 40µsec. Nominal |
Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.