Trsb Mls Offsets Toncontin Airport Tegucigalpa, Honduras
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h,lrt II. FA~RD.18.15 &OPlJ~ "'It·? r"/~- FAA WJH Technical Center 11m 111111 WI lUI 111111111111 00092405 , t TRSB 'J ' MICROWAVE LANDING SYSTEM DEMONSTRATION PROGRAM AT TONCONTIN'INTERNATIONAL AIRPORT TEGUCIGALPA, HONDURAS JUPIG . LIIeftA• .,. V"i'"<i "10'18 ; .~ . • NOVEMBER 1977 FINAL REPORT Document is available to the U.S. public through '\ the National Technical Information Service, ·i Springfield, Virginia 22161. Prepared for U.S. DEPARTMENT OF TRANSPORTA1'ION FEDERAL AVIATION ADMINISTRATION Systlll1S Res_ell &Development service Was~ilgton, D.C. 2(BJ NOTICE The United States Government does not endorse products or manufacturers. 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I I I , I i I I , • , '" • 2.5" U''''~I¥I. FDf o ....lt'eKeCI ton.......on~ .. ~ ......e <liellt,led tables. see NBS M,s<:. Publ. 296. I I I I I o ZO ~ 10 .0 Un'''' 01 "e.gr:.". a~ ~......, Pr.ea &2.26. SO Catalog No. C'~.10,286. - -.0 -'0 ·c ! - - •u ·C " TECHNICAL REPORT STANDARO TITLE PAGE 1. Report No. 2. GoYemmen, Acc•••ion No. 3. Recipient'. Co,.i.1 No. FAA-RD-78-l5 4. Tit'. OrId _".i.l. S. Report O.t. TRSB Microwave Landing System Demonstration November 1977 Program at Tegucigalpa, Honduras •• Perfonnihl Orlonlaotlon Cod• 7. Author(.) 8. P.rforming Organization R.,.,. No. F AA-NA-78-l5 9. Performing O"CWliJ:a'lon N..... and Adch... 10. Woril: Unit No. Federal Aviation Administration National Aviation Facilities Experimental Center II. Contract or G,on' No. Atlantic City, New Jersey 08405 075-725-755 13. T". of R.port onel P.rlod Cover.cI 12. Sponsorln, Agoner Nomo and Acid,••• Final Report U.S. Department of Transportation ~ov. Federal Aviation Administration 13, 1977-Nov. 26, 1977 Systems Research and Development Service 14. Sponso,in, Agoncy Cod. Washington, D. C. 20590 15. Suwl.....ntory Not•• 16. Ab,troct The FAA is conducting operational demonstrations of several TRSB \J.ardware con figurations at selecte airports in the United States and abroad. Th~first demon stration was at Cape May, New Jersey, using the Small Community ystem. The second demonstration was at Jorge Newbery Aeroparque in Buenos Aires, Argentina. The third demonstration, using the Small Community System at Toncontin Airport in Honduras, pres';nted a geographical challenge to the 0fJeration of any ~recision land int sJ,stem. Mountaino.us terrain and minimal NAV-A DS and runway ights, limit sc e uled airline fl~hts to daylight hours. Terrain features necessitated offset approach paths for unway 19, with azimuth and elevation sites collocated. This TRSB configuhltion provides azimuth proportional guidance +10 degrees about the runway centerline, with directional ~uidance from 10 degrees-out to 40 degrees. Elevation proportional guidance from 2 egrees to 11 degrees with fly-down clear ance from 11 degrees to 15 de$rees, is provided. Coverage Jistance is at least 20 nautical miles under heavy ram. Flights in the NAFEC CV-580 demonstrated three approaches: (1) Parallel to run way centerline; offset by 58.5 meters with 4.5 d"l'rees elevation angle; (2) 3 degrees azimuth radial with 4 degrees elevation angle; an (3) 9 degrees azimuth radial with 3.5 degrees elevation angle. In all cases, decision height was 12l meters (400 feet). Results using the TRSB System are: (1) The system re~uired minimal site prepara tion etnd in~tal\'ation tWe;.J~). de(~stra+ions of severa offs;jt aKpr~i\ch ~Res indi cate TRS flUi ance eXi lhty; the RSB system was JU ge su Jechv y asJ'..ro viding excel ent guidance signals; 4) the TRSB "Small Community System" was em onstrated to meet its design speci ications; and (5) for this airport and runway, the data indicates that guidance signal 'buali!Yl with no filtering, is well within ICAO noise requirements for a "reduced apaol ity system. " 17. K.v Wo,eI, 18. Di."lllvtlon s,......., Honduras Document is available to U. S. public TRSB through the National Technical Informa- MLS tion Service, Springfield. Virginia 22161 Small Community System 19. Security Cla..if. lof this r-..ort) 20. S.curity CI...if. (of thi. pog.) 21_ No. of p.... 22. Price Unclassified Unclas sified 38 f ... DOT f 1700.7 11·8f1 TABLE OF CONTENTS PAGE INTRODUCTION I • DISCUSSION 2 Initial Site Selection 3 • Site Survey 3 System Installation 4 Operational Demonstrations 5 Performance Assessment 6 SUMMARY OF RESULTS 7 APPENDIX LIST OF ILLUSTRATIONS PAGE Figure 1. Plan View of Runway 10 Figure 2. Runway Approach Plate 11 Figure 3. Elevation Profile for Approach to R /W 01 12 Figure 4. Elevation Profile for Approach to R /W 19 13 Figure 5. View Toward Approach End of R/W 19 14 Figure 6. Terrain Clearance Angles for Approach to R/W 19 15 Figure 7. Aircraft Maneuver Requirements for two Azimuth 16 Offset Types Figure 8. Equipment Arriving by Air . 17 Figure 9. TRSB Mounting Plates 18 Figure 10. TRSB Installation Process 19 Figure ll. TRSB Collocation Diagram 20 Figure 12. Elevation and Azimuth TRSB Subsystems 21 Figure 13. TRSB MLS Offset 22 Figure 14. Typical TRSB Tracked Approach 23 Figure 15. Sample Azimuth Strip Chart Recording for 24 1l/24/77 Figure 16. Sample Elevation Strip Chart Recording for 25 11 /24/77 Figure 17. Sample Azimuth Strip Chart Recording for 26 II /25/77 Figure 18. Sample Elevation Strip Chart Recording for 27 1l/25/77 LIST OF TABLES Table 1. TRSB Accuracy, Phase III Systems 1 INTRODUCTION During the past several years, extensive engineering evaluation and flight testing has been accomplished on Time Reference Scann'ing Beam (TRSB) Microwave Landing System (MLS) equipments at the Federal Aviation Administration I s (FAA) National Aviation Facilities Experimental Center (NAFEC), Atlantic City, New Jersey, and at the Auxiliary Naval Landing Field, Crows Landing, California. TRSB MLS is the United States and Australian candidate submission to ICAO as the replacement for ILS. In March 1977, the ICAO All Weather Operations Panel (AWOP) recommen ded TRSB to the Air Navigation Commission (ANC) as the preferred candi date system for international adoption. This decision by AWOP followed a 15 month period of intensive and comprehensive assessment of all competing microwave landing systems conducted by a working group of international experts under the sponsorship of the AWOP. The ANC forwarded the AWOP recommendation to the ICAO Council, whereupon the Council has scheduled a worldwide meeting for April 1978, to addres s the question of selecting the new international standard for an approach and landing system to replace ILS. Meanwhile, the Council has encouraged proposing States to conduct demonstration and flight trials at operational airports. Accordingly, the FAA has developed a program to conduct operatibnal demonstrations of several TRSB hardware configurations at selected air ports in the United States and abroad. These demonstrations are intended to show that TRSB is a mature system that meets the full range of require ments from general aviation use to scheduled air carrier operations, for Category I to Category III autoland, under good or poor airport siting conditions, and under extreme weather conditions. Additionally, these demonstrations provide opportunities for representatives and officials of the international aviation community to gain first hand knowledge of TRSB MLS, and assess its applicability to their particular requirements. The first operational demonstration of TRSB away from NAFEC was con ducted at a small community airport in Cape May, New Jersey. At the invitation of the Organization of American States (OAS) and the Argentine Government, the second demonstration was conducted at Jorge Newbery Aeroparque in Buenos Aires during a meeting of the OAS Aeronautical Telecommunications Group. The third demonstration was conducted at Toncontin International Airport, Tegucigalpa, Honduras, through arrange ments made with the Government of Honduras and the Corporacion Centroamericana de Servicos de Navegacion Aerea (COCESNA) for a TRSB MLS demonstration November 24, 25, 1977.