manual radio 251. Document Type. Manual. Device. VHF-251, Manufacturer. Collins Avionics Divisions/Rockwell Internacional. Distributor / Applicant. Collins Avionics Divisions/Rockwell Internacional. Collins VIR 350/ 351 Nav Receiver Connector Diagram/ Pin Assignments $ 2.95. Collins VIR 350/ 351 . Continental NA-S3A1 Technical Manual Illustrated Parts Breakdown Float Carburetor $ 2.95. Continental NA-S3A1. Delco D.C. Generators Adjustments, Test and Maintenance $ 9.95. Delco D.C. Collins Pro Line II Pilot's Guide 523-0773070 2. Collins Avionics Pro Line II Comm/Nav/Pulse Systems Flight-Line Maintenance Troubleshooting Flow Charts 523-0775841 3. Pro Line II Comm/Nav/Pulse System Installation Manual 523-0772719 . Publications and Training Solutions Course Syllabus: 523-0808753 ©2017 Rockwell Collins. All rights Product Description. The Collins GLS-350 Remote Glideslope Receiver is part of the acclaimed Collins Microline series. This Glideslope Receiver is designed to be used together with a Collins VIR-351 NAV Receiver. The GLS-350 receives all 40 glideslope channels, allowing you to fly precision ILS approaches everywhere. This unit is also TSO'd. John Raatz wrote: Does anyone have a PDF version for the VHF-251 or VIR-351? I have an actual paper Collins manual for these. as thick as a large city phone book. $50 shipped, has fold out schematics and all kinds of service bullitens too. Complete service manual. Kurt. Collins VIR-350 VIR-351 Navigation Receiver IND-350-351-351C Indicator, IND-350A-351-351D IND Indicator and PWC-150 Power Converter Instruction Book 523-0766704 $ 19.95 Available Options: Collins Vhf 251 Installation Manual VIR-351 (SV) Pre-Owned NAV Receiver Collins Vhf 251 For Sale Collins Part #: 622-2080-011/U Collins Vhf 251. The VIR-351 is a NAV Receiver from Collins' Microline series. This radio is a slide-in replacement for the Collins VIR-350 NAV Receiver. Refer to this manual for guidance. All other servicing should be done by an authorized servicer. Appliance Handling Safety Unit is heavy and requires at least two people or proper equipment to move. Do not lift appliance by door handle. Hidden surfaces may have sharp edges. Use caution when reaching behind or under appliance. 4. Collins Pro Line II Pilot's Guide 523-0773070 5. Collins Avionics Pro Line II Comm/Nav/Pulse Systems Flight-Line Maintenance Troubleshooting Flow Charts 523-0775841 6. Pro Line II Comm/Nav/Pulse System Installation Manual 523-0772719 7. EHSI-74/74A/74B Electronic HSI System Instruction Book 523-0772693 8.