DOWNLOOKING VIEWPOINTS(LEFT SIDE)

DOPPLER RADAR MOUNTS(TOP AND BOTTOM)

LARGE APERTURESOR VIEWPORTS

(TOP AND BOTTOM CENTERLINE)SATCOMANTENNA

DROP CHUTEFOR EXPENDABLES

UNDERWING HARDPOINTS(2 EACH SIDE)

BLANK WINDOW

CANOEFAIRING

DOWNLOOKING APERTURES (BOTTOM CENTERLINE)

HEATED RADOMEAIR MOTION PROBE

FORWARD FUSELAGEHARDPOINTS(EACH SIDE)

WEATHER RADAR

SMALL OVERHEAD FUSELAGEAPERTURES AND INLETS

SATCOMANTENNA

FUSELAGE HARDPOINTS(TOP AND BOTTOM)

MODIFICATIONS NOT SHOWN:•WIRING FROM NOSE, WINGS AND TAIL INTO CABIN•ELECTRICAL POWER DISTRIBUTION SYSTEM IN CABIN•BLEED-AIR-DRIVEN VENTURIS FOR VACUUM SOURCES

HIAPER RESEARCH ELECTRICAL HIAPER RESEARCH ELECTRICAL SYSTEM FEATURESSYSTEM FEATURES

Capable of continuously providing up to 60 KVACapable of continuously providing up to 60 KVA Requires no cabin floor spaceRequires no cabin floor space

Incorporates an expandable main distribution and Incorporates an expandable main distribution and monitoring panelmonitoring panel

Distributes regulated:Distributes regulated:120/208vac, 3120/208vac, 3, 400Hz, 400Hz115vac, 1115vac, 1, 400Hz, 400Hz115vac, 1115vac, 1, 60Hz, 60Hz28Vdc28Vdc28Vdc De-ice power tied 28Vdc De-ice power tied through “weight-on-wheels” through “weight-on-wheels”

switchswitch

ELECTRICALELECTRICAL … …Cont’dCont’d

Secondary distribution panels located strategically Secondary distribution panels located strategically throughout the aircraft, i.e.throughout the aircraft, i.e.

CabinCabinWingsWingsTailTailNoseNose

ELECTRICALELECTRICAL … …Cont’dCont’d

Single-point groundSingle-point ground

Automatic power sheddingAutomatic power shedding

Frequency converters and power receptacles Frequency converters and power receptacles compatible with the other NSF/NCAR aircraftcompatible with the other NSF/NCAR aircraft

ELECTRICALELECTRICAL … …Cont’dCont’d

RESEARCH SIGNAL RESEARCH SIGNAL WIRING FEATURESWIRING FEATURES

Capability to interconnect various Capability to interconnect various aircraft locations to a central cabin aircraft locations to a central cabin location via signal distribution panels, i.e.location via signal distribution panels, i.e.

Wingtips to cabinWingtips to cabinWing-pods to cabinWing-pods to cabinTail to cabinTail to cabinNose to cabinNose to cabinInter-cabin, Etc.Inter-cabin, Etc.

SIGNAL WIRINGSIGNAL WIRING… Cont’d… Cont’d

Wiring consists of, but not limited to:Wiring consists of, but not limited to:

Twisted shielded pairTwisted shielded pair TwinaxTwinax50 Ohm coax50 Ohm coax 75 Ohm coax75 Ohm coaxMulti-conductor cablesMulti-conductor cables Fiber opticsFiber opticsHigh-speed network cablingHigh-speed network cabling

AIRCRAFT INTERCOMMUNICATIONS AIRCRAFT INTERCOMMUNICATIONS SYSTEMSSYSTEMS

Maximum FlexibilityMaximum Flexibility

Every scientist/observer station must be able to talk to all Every scientist/observer station must be able to talk to all other stations individually or in broadcast modeother stations individually or in broadcast mode

Flight deck to scientist station intercom selectionFlight deck to scientist station intercom selection

Scientist station selectable communications via VHF, HF, FM, Scientist station selectable communications via VHF, HF, FM, SATCOM for air to ground and ground to air communicationsSATCOM for air to ground and ground to air communications

Ability to record observer “voice notes” at each scientist work Ability to record observer “voice notes” at each scientist work stationstation

Flight deck control over out going communication to avoid Flight deck control over out going communication to avoid unintended communication with ATCunintended communication with ATC

HIAPER VOICE AND DATA HIAPER VOICE AND DATA COMMUNICATIONSCOMMUNICATIONS

• High speed global satellite communicationsHigh speed global satellite communications

• Weather Fax – ground to aircraftWeather Fax – ground to aircraft

• Multi-channel voice communication for separate flight deck Multi-channel voice communication for separate flight deck and scientist communicationsand scientist communications

• High speed data transfer at 56 Kbps or greater (air to ground High speed data transfer at 56 Kbps or greater (air to ground and ground to air)and ground to air)

• Connection to internet for real-time time data dissemination Connection to internet for real-time time data dissemination and monitoringand monitoring