Maintenance Manual. Model VOA-8 Omni-Localizer Converter & Model VOA-9 Omni-Localizer Converter with Glide Slope Indicator This item is: Narco VOA-8 and VOA-9 Nav Indicator Maintenance Manual. We answer questions and will provide many detailed photos, email us: altimeters@charter. This item is: Narco VOA 8 & VOA 9 Service manual, with install, maintenance, detailed schematics and illustrated parts lists. Narco VOA-8 & VOA-9 1966 Installation Manual (part# 3204-621). Avionics Manuals : Narco : Narco VOA Series. Part No. : 3204-621. SKU : 2237:R. signed to drive displays such as NARCO's DGO 10, an HSI, VOR Converters: VOA 100/110, VOA. 40/50. VOA 8/9, or the CLC 60. All NAV 114 units are wired for NARCO VOA 8, VOA 9 Install, Service & Parts manual - $37.05. FOR SALE! This item is: Narco VOA 8 & VOA 9 Service manual, with install, maintenance, NARCO AVIONICS VOA-8 & VOA-9 NAVIGATION CONVERTERS MAINTENANCE MANUAL Localizer - £11.06. FOR SALE! Up for your consideration is the terrific collectibleNarco VOA-8 & VOA-9 1966 Installation Manual (3204-621). by Narco. Sale. $12.00. | /. SKU 2237:R. Printed Manual - $12.00, Download - $12.00.