Alt-Terra Aerial Survey

Equipment

Leica RC-30 Aerial Survey Camera

  • AWAR 113 l.p./mm
  • Forward Motion Compensation (F.M.C.)
  • Pav-30 Gyro stabilized camera mount
  • GPS Kinematic survey capable through the Leica EDI (External Data Interface)
  • 6 film cassettes, holding 2300 exposures at one time

Leica RC-30 Aerial Survey Camera

  • AWAR 113 l.p./mm
  • Forward Motion Compensation (F.M.C.)
  • Pav-30 Gyro stabilized camera mount
  • GPS Kinematic survey capable through the Leica EDI (External Data Interface)
  • 6 film cassettes, holding 2300 exposures at one time

1974 Piper Navajo Chieftain

  • Turbocharged, Intercooled 350 HP engines, Ceiling 25,000’ MSL
  • Extended range, 242 gal fuel tanks, 6 hr endurance, 1200 mile range
  • 200 MPH cruise speed
  • 22” diameter camera port
  • Dual frequency GPS/GLONASS antenna mounted directly over center of lens

1978 Piper Turbo-Aztec Twin Engine Aircraft

  • Turbocharged, Ceiling 23,000 ft. MSL
  • Extended range fuel tanks: 5 hr. endurance, 900 mile range
  • 22” diameter camera port
  • Dual frequency GPS/GLONASS antenna mounted directly over center of lens

1979 Cessna T-210

  • Turbocharged, ceiling 25000 ft. MSL
  • Extended range fuel tanks, 6 hours endurance
  • 20” diameter camera port
  • Dual frequency GPS/GLONASS antenna mounted over center of the lens

1 Novatel SPAN IMU+GPS/GLONASS INS System, with LN 200 IMU and

1 Novatel Pro-Pak 40 Channel GPS receiver

1 Novatel DL-V3 40 channel Dual Frequency GPS/Glonass Receiver

7 Topcon/Javad Legacy E Dual Frequency GPS / GLONASS Receivers

  • 40 Channels, recording up to 20 dual frequency navigation satellites
  • 74 megabytes of memory in each receiver
  • 5 Hz recording capability

GLONASS typically adds 3 to 6 high quality L1 and L2 satellites to the navigation constellation at any given time, significantly improving P-DOP, reducing loss of lock during end turns, and eliminating windows of unusable satellite coverage.

Waypoint Grafnav and Inertial Explorer Post-Processing Software

4 Track’air GPS Flight Management Systems

  • ~2 meter photo center recording accuracy via WAAS enabled GPS engine with 1 PPS timing reference
  • Camera triggering and flight line navigation via WAAS DGPS
  • Job number, job name, flight line number, photo number, latitude, longitude, altitude MSL, flight direction, GPS time & date annotated on each negative and recorded in ASCII file
  • TXT or DXF file import of flight line coordinates

Kodak Versamat 1140 Black and White Film Processor

X-rite 310 B/W Transmission Densitometer

EG&G Sensitometer

Cartwright Aerial Film Titler

2 Linex 201 Film Titling Machines

2 GTCO and 1 SummaGrid 36 X 48” digitizing tablets