1. GAP Measurements and Instrumentation
Aircraft navigation
Position
GPS
Meteorology
Air temperature, pressure, humidity
Wind speed and direction
Updraft velocity
Vaisala sensor
Turbulent gust probe
Radiometers
Total downwelling solar irradiance (0.200 to 3.6 mm)
Cloud and surface albedo (reflected solar irradiance)
Multi-channel downwelling irradiance
(405, 550, 875 nm, PAR)
Transmitted solar radiation and cloud optical depth
modified CM22 pyranometer (Kipp & Zonen)
modified CM22 pyranometer (Kipp & Zonen) and Multi-Channel Airborne Radiometer (MCAR-4) (Biospherical Instruments, Inc.)
MCAR-4 (Biospherical Instruments)
MCAR-4 (Biospherical Instruments, Inc.)
Cloud and aerosol measurements
Condensation nuclei concentration
Cloud condensation nuclei (0.13 to 3% S)
Aerosol size distribution (0.3 to 10 mm Dp)
Cloud droplet distribution (1 to 70 mm Dp)
Cloud liquid water content
Cloud imaging
Rain drop and drizzle size distribution
Condensation particle counter (CPC) (TSI 3007)
CCN counter (Scripps / Georgia Tech / DMT)
Optical particle counter (MetOne)
Cloud droplet probe (CDP) (DMT)
infer from CDP (in-situ; future development)
Video camera
2D Probe (DMT; future development)
Gas measurements CO
CO2
SO2
Volatile organic carbon compounds
(future development)

2. GAP Instruments (fuselage)
Condensation Particle Counter (CPC)
Weight: kg
Dimensions: 250 x 120 x 70 mm
Power consumption: 15 W (9 VDC)
Data output: RS-232
Deployment: fuselage
Cloud Condensation Nuclei Counter (CCN)
Weight: 3 kg
Dimensions: ca. 120 x 120 x 300 mm
Power consumption: 25 W (28 VDC)
Data output: RS-232
Deployment: fuselage
Optical Particle Counter (OPC)
Weight: kg
Dimensions: 96 x 60 x 34 mm
Power consumption: 5.4 W (12 V DC)
Data output: RS-232
Deployment: fuselage
Data Acquisition (DAQ)
Weight: kg
Dimensions: ca 100 x 100 x 15 mm
Power consumption: 5 W (5 V DC)
Data output: RS-232
Deployment: fuselage
Flow Splitter / Inlet (AI)
NOTE: fuselage part of aerosol inlet
Additional:
Electronics processor for CDP
Pressure sensors for GP

3. GAP Instruments (external)
Cloud Droplet Spectrometer (CDP)
Weight: 1.6 kg
Dimensions: 216 x 115 x 100 mm
Power consumption: 14 W (28 V DC)
Data output: datalogger
Deployment: fuselage/wing
NOTE: electronics processor in fuselage
Multi-Channel Airborne Radiometer (MCAR-4)
Weight: 0.3 kg
Dimensions: 90 mm  x 110 mm
Power consumption: ~10 mA (RS-232)
Data output: RS-232
Deployment: wing or fuselage
Pyranometer (CM22-A)
Weight: 0.4 kg
Dimensions: 80 x 55 x 70 mm
Power consumption: NA
Data output: RS-232
Deployment: wing
Gust Probe (GP)
Weight: 0.4 kg
Dimensions: 6 Ø x 200 mm
Power consumption: < 1 W
Data output: datalogger
Deployment: nose
NOTE: ca. 0.1 liters of sensors in fuselage
Aerosol Inlet (AI)
Weight: 0.3 kg
Dimensions: 30 Ø x 200 mm
Power consumption: NA
Data output: NA
Deployment: nose
NOTE: splitter in fuselage

4. Deployment of GAP InstrumentsID
Est. weight (kg)
Power (W)
Data acquisition
Condensation Particle Counter
CPC
0.75
15.0
RS-232
Optical Particle Counter
OPC
0.30
5.4
Cloud Droplet Probe
CDP
1.6
14.0
Pyranometer
CM22-A
0.40 NA
datalogger
Multi-Channel Airborne Radiometer (405, 550, 875, PAR)
MCAR
0.1
Cloud Condensation Nucleus Counter
CCN
3.00
25.0
digital video camera DC
0.5
Flash card
data acquisition system
DAQ 10 --
aerosol inlet AI
0.3
Estimated payload for each platform
Payload (kg)
Instrumentation
above-cloud
3.75
30.7
AI, DAQ, CPC, 2*CM22, OPC, 2*MCAR, DC
in-cloud
3.85
45.4
AI, DAQ, CPC, CDP, OPC
below-cloud
4.85
50.1
AI, DAQ, CPC, CCN, MCAR, OPC

5. GAP-PT Instrumentation
Condensation Particle Counter (CPC)
Weight: kg
Dimensions: 250 x 120 x 70 mm
Power consumption: 15 W (9 VDC)
Data output: RS-232
Deployment: fuselage
Platform specific instruments
Pyranometer (CM22-A)
Weight: 0.4 kg
Dimensions: 80 x 55 x 70 mm
Power consumption: NA
Data output: RS-232
Deployment: wing
Optical Particle Counter (OPC)
Weight: kg
Dimensions: 96 x 60 x 34 mm
Power consumption: 5.4 W (12 V DC)
Data output: RS-232
Deployment: fuselage
Data Acquisition (DAQ)
Weight: kg
Dimensions: ca 100 x 100 x 15 mm
Power consumption: 5 W (5 V DC)
Data output: RS-232
Deployment: fuselage
Aerosol Inlet (AI)
Weight: 0.3 kg
Dimensions: 30 Ø x 200 mm
Power consumption: NA
Data output: NA
Deployment: nose
NOTE: splitter in fuselage
Flow Splitter / Inlet (AI)
NOTE: fuselage part of aerosol inlet

6. GAP-FM1 above-cloud instrumentation
Condensation Particle Counter (CPC)
Weight: kg
Dimensions: 250 x 120 x 70 mm
Power consumption: 15 W (9 VDC)
Data output: RS-232
Deployment: fuselage
Platform specific instruments
Pyranometer (CM22-A)
Weight: 0.4 kg
Dimensions: 80 x 55 x 70 mm
Power consumption: NA
Data output: RS-232
Deployment: wing
Optical Particle Counter (OPC)
Weight: kg
Dimensions: 96 x 60 x 34 mm
Power consumption: 5.4 W (12 V DC)
Data output: RS-232
Deployment: fuselage
Multi-Channel Airborne Radiometer (MCAR-4)
Weight: 0.3 kg
Dimensions: 90 mm  x 110 mm
Power consumption: ~10 mA (RS-232)
Data output: RS-232
Deployment: wing or fuselage
Data Acquisition (DAQ)
Weight: kg
Dimensions: ca 100 x 100 x 15 mm
Power consumption: 5 W (5 V DC)
Data output: RS-232
Deployment: fuselage
Aerosol Inlet (AI)
Weight: 0.3 kg
Dimensions: 30 Ø x 200 mm
Power consumption: NA
Data output: NA
Deployment: nose
NOTE: splitter in fuselage
Flow Splitter / Inlet (AI)
NOTE: fuselage part of aerosol inlet

7. GAP-FM1 in-cloud instrumentation
Condensation Particle Counter (CPC)
Weight: kg
Dimensions: 250 x 120 x 70 mm
Power consumption: 15 W (9 VDC)
Data output: RS-232
Deployment: fuselage
Platform specific instruments
Cloud Droplet Spectrometer (CDP)
Weight: 1.6 kg
Dimensions: 216 x 115 x 100 mm
Power consumption: 14 W (28 V DC)
Data output: datalogger
Deployment: fuselage/wing
NOTE: electronics processor in fuselage
Optical Particle Counter (OPC)
Weight: kg
Dimensions: 96 x 60 x 34 mm
Power consumption: 5.4 W (12 V DC)
Data output: RS-232
Deployment: fuselage
Gust Probe (GP)
Weight: 0.4 kg
Dimensions: 6 Ø x 200 mm
Power consumption: < 1 W
Data output: datalogger
Deployment: nose
NOTE: ca. 0.1 liters of sensors in fuselage
Data Acquisition (DAQ)
Weight: kg
Dimensions: ca 100 x 100 x 15 mm
Power consumption: 5 W (5 V DC)
Data output: RS-232
Deployment: fuselage
Aerosol Inlet (AI)
Weight: 0.3 kg
Dimensions: 30 Ø x 200 mm
Power consumption: NA
Data output: NA
Deployment: nose
NOTE: splitter in fuselage
MAY REQIURE REVERSE FACING INLET
Flow Splitter / Inlet (AI)
NOTE: fuselage part of aerosol inlet
Additional:
Electronics processor for CDP
Pressure sensors for GP

8. GAP-FM1 below-cloud instrumentation
Condensation Particle Counter (CPC)
Weight: kg
Dimensions: 250 x 120 x 70 mm
Power consumption: 15 W (9 VDC)
Data output: RS-232
Deployment: fuselage
Platform specific instruments
Cloud Condensation Nuclei Counter (CCN)
Weight: 3 kg
Dimensions: ca. 120 x 120 x 300 mm
Power consumption: 25 W (28 VDC)
Data output: RS-232
Deployment: fuselage
Optical Particle Counter (OPC)
Weight: kg
Dimensions: 96 x 60 x 34 mm
Power consumption: 5.4 W (12 V DC)
Data output: RS-232
Deployment: fuselage
Multi-Channel Airborne Radiometer (MCAR-4)
Weight: 0.3 kg
Dimensions: 90 mm  x 110 mm
Power consumption: ~10 mA (RS-232)
Data output: RS-232
Deployment: wing or fuselage
Data Acquisition (DAQ)
Weight: kg
Dimensions: ca 100 x 100 x 15 mm
Power consumption: 5 W (5 V DC)
Data output: RS-232
Deployment: fuselage
Gust Probe (GP)
Weight: 0.4 kg
Dimensions: 6 Ø x 200 mm
Power consumption: < 1 W
Data output: datalogger
Deployment: nose
NOTE: ca. 0.1 liters of sensors in fuselage
Aerosol Inlet (AI)
Weight: 0.3 kg
Dimensions: 30 Ø x 200 mm
Power consumption: NA
Data output: NA
Deployment: nose
NOTE: splitter in fuselage
Flow Splitter / Inlet (AI)
NOTE: fuselage part of aerosol inlet
Additional:
Pressure sensors for GP