The FAA’s decision to relegate the GPS Cat 1 local-area augmentation system (LAAS) to a mere R&D program (AIN, March 2004, page 1) came as little surprise to either administration officials or industry.
Arinc has flight tested a new differential-GPS precision approach and landing system designed to withstand electronic jamming. Conducted on April 5 at Holloman Air Force Base in New Mexico in an Air Force C-12J (the military version of the Beech 1900C), the tests evaluated the performance of Arinc’s developmental local-area differential GPS (LDGPS) landing aid.
In an effort to streamline its GPS/navcom product line, Garmin will rename the CNX80 navigator the GNS 480, according to a spokesman. The new designation positions the panel-mount unit between Garmin’s GNS 430 and GNS 530 products, more than 41,000 of which are flying in various GA aircraft around the world.
Owners of Garmin GTX 330 and 330D transponders, which the FAA said are installed in about 1,300 airplanes, must upgrade the equiptment with new software (version 3.03 or later). The upgrade is to correct a problem with the transponder, which can in certain instances issue inaccurate replies to aircraft equipped with traffic-alerting devices. Garmin said it will reimburse GTX 330/330D owners the cost of one hour of labor to perform the update.
It is no secret that the FAA in the last several months has been forced to shelve a number of important ATC modernization projects. But now a blunt assessment by Department of Transportation inspector general Kenneth Mead accuses the agency of misjudging the technological maturity of the canceled programs and failing to gauge their true costs.
Universal Avionics plans to announce FAA certification of the first TSO’d WAAS-qualified FMS for installation on Part 23 and 25 aircraft at a press conference today at
2 p.m. The new Universal W series FMS allows operators to use GPS as a primary means of navigation and to fly WAAS/LPV IFR approaches. The W series FMS is certified to TSO C146b, Class Gamma-3, according to Universal Avionics.
A study commissioned by the NGATS Institute on behalf of the FAA’s JPDO and prepared by the advanced engineering and sciences division of ITT determined that eLoran (for enhanced) has “the highest overall preference rating…particularly in the U.S.” as a backup for satnav receivers in the event of failure or interference.
This summer a Eurocopter EC 155 all-weather demonstrator performed satellite-guided precision approach tests in Lausanne, Switzerland, as part of a research program aimed at developing approach and departure IFR procedures suited to helicopters using the European geostationary navigation overlay service (egnos) Skyguide, the Swiss air navigation service provider, coordinated the program. Swiss medical air rescue agency Rega was also involved.
The DOD’s Navstar GPS reached a new performance level this year, with 30 satellites in orbit versus its minimum required civil complement of 24. Four more satellites add signal coverage and reduce the number of occasional “holes,” or gaps where fix geometry can sometimes fall below navigation standards.
A satellite navigation backup study commissioned by the JPDO has given eLoran “the highest overall preference rating...particularly in the U.S.” Not yet publicly released, the 180-page document was prepared by ITT’s advanced engineering and sciences division and assessed seven candidates against a series of essential requirements. The candidates include DME/DME/INS; GNSS/INS; eLoran; VOR; “hardened” GNSS; terrain mapping; and multilateration.