I have a question to the experts. What was a typical HH-43B/F avionics suite from Nam that was carried on CSAR missions?
While I don't have any flight manual of the F version, the B version apparently carried the following setup.
COMM
Two AIC-10A - ICS, each for pilot and co-pilot
AN/ARC-34 - UHF AM + AN/ARA-25 UHF DF group
AN/ARC-73 or Lapointe VHF-101 - VHF AM
AN/ARC-44 - FM + AN/ARA-31 homing group + separate homing indicator
KY-28 secure voice for the UHF or FM radio
NAV
J-4 gyrocompass
AN/ARN-59 ADF
ID-250A/ARN RMI, which indicated the bearing from the J-4, and homing signals from the ADF (needle #1) or AN/ARA-25 UHF DF (needle #2).
Other
AN/APX-72 IFF
Hoist
PA system
My understanding is that a Pedro's crew picked up downed pilot ELT's signals aired at 243 MHz, and the bearing was projected on the ID-250A/ARN RMI (see the picture below). Then they homed on them.
Reportedly, some Pedros also carried an FM set with homing capability, but FM radios were mostly used by ground troops, who, however, could be also in need.
Did the CSAR-equipped F-version Pedros differ much from the above mentioned avionics setup? It would be appreciated if someone, who has the flight manual of the HH-43F, could share it.
While I don't have any flight manual of the F version, the B version apparently carried the following setup.
COMM
Two AIC-10A - ICS, each for pilot and co-pilot
AN/ARC-34 - UHF AM + AN/ARA-25 UHF DF group
AN/ARC-73 or Lapointe VHF-101 - VHF AM
AN/ARC-44 - FM + AN/ARA-31 homing group + separate homing indicator
KY-28 secure voice for the UHF or FM radio
NAV
J-4 gyrocompass
AN/ARN-59 ADF
ID-250A/ARN RMI, which indicated the bearing from the J-4, and homing signals from the ADF (needle #1) or AN/ARA-25 UHF DF (needle #2).
Other
AN/APX-72 IFF
Hoist
PA system
My understanding is that a Pedro's crew picked up downed pilot ELT's signals aired at 243 MHz, and the bearing was projected on the ID-250A/ARN RMI (see the picture below). Then they homed on them.
Reportedly, some Pedros also carried an FM set with homing capability, but FM radios were mostly used by ground troops, who, however, could be also in need.
Did the CSAR-equipped F-version Pedros differ much from the above mentioned avionics setup? It would be appreciated if someone, who has the flight manual of the HH-43F, could share it.