ER-2 BriefingER-2 Briefing

ER-2 Specifications

Crew: One Pilot Length: 62 feet, 1 inch

Wingspan: 103 feet, 4 inches Engine: One General Electric F-118-101 engine Altitude: Above 70,000 feet Range: Over 6000 nautical miles, subject to pilot duty

time limitations Duration: Over 10 hours

Cruise Speed: ~400 knots above 65,000 feet altitude (~210 Meters/sec)

ER-2 Typical Flight Profile

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DATA Gathering LegsAircraft maneuvers performed within operating limits to meet

mission needs

Take-off Landing

ER-2 Loiter Time (based on 8 hr mission) - Operations depart from and return to PMD

ER-2 Basic Configuration4. RIGHT WING POD

86.0ft3 (2.43m3)650lbs (294 kg)

50A @ 115VAC/400Hz80A @ 28VDC

3. LEFT WING POD86.0ft3 (2.43m3)650lbs (294 kg)

50A @ 115VAC/400Hz80A @ 28VDC

1. NOSE47.8ft3 (1.35m3)

700lbs (317 kg)***50A @ 115VAC/400Hz

70A @ 28VDC

2. Q-BAY64.6ft3 (1.83m3)

1000lbs (454 kg)***100A @ 115VAC/400Hz

140A @ 28VDC

6. CENTERLINE POD14.0ft3 (0.40m3)350lbs (159 kg)

Electrical Shared with Q-Bay

*** - Max combined Q-Bay and Nose payload cannot exceed 1300lbs

5. SYSTEM 20 POD0.74ft3 (0.02m3)45 lbs (20.4 kg)

30A @ 115VAC/400Hz30A @ 28VDC

Inside Nose looking Forward

Fixed Nose Looking Aft

ER-2 Payload Areas: Nose Area

Forebody inside looking forward Aftbody side view

ER-2 Payload Areas: SuperPod Fore and Aftbody

Forward Midbody looking Aft

Lower Midbody looking Up and Aft

ER-2 Payload Areas: SuperPod Midbody

Internal Q-Bay looking Up and Aft

AftQ-bay

ForwardQ-Bay

ER-2 Payload Areas: Q-Bay

ER-2 Payload Areas: Q-Bay Hatch Designs

Pressure Box Mount

Dual Window Hatch

Open Port With Fairing

Panoramic Window Hatch

ER-2 Payload Areas: Q-Bay Hatch Designs

ER-2 Payload Areas: External Pods

Centerline Pod

System 20 Pod

ER-2 Electrical/Control Interface

Experiment Control Panel

Experiment Interface Panel

Airworthiness Process OverviewFor New Instruments

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• ASP Programmatic Requirements Science Operations Flight Request System (SOFRS) Cost Estimate Approved Flight Request

Funding

AFRC Airworthiness Requirements Required before first flight for all new or modified instruments

Results in an approved Flight Request

Payload Integration Planning– Instrument Design and Analysis

• ER-2 Handbook http://www.nasa.gov/centers/dryden/pdf/90464main_ER2handbook.pdf

– Upload and Check-out– Combined System Test– Engineering Check Flights– Science Flights

ASP Programmatic RequirementsProcess Overview

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Airborne Science Program (ASP) Flight Request Science Operations Flight Request System (SOFRS)

https://airbornescience.nasa.gov/sofrs/

Project Cost Estimate Flight Hour Cost - $3500/hour with SMD approval Mission Peculiar Cost (MPC)

Labor Overtime Travel Integration Cost Logistics

Science Mission Directorate (SMD) Approval Funding at AFRC

AFRC Airworthiness Requirements Process Overview

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Technical Briefing Independent peer review of project goals and plans Key Elements

Overall Project Objectives and Responsibilities Payload Design and Analysis

Structural Analysis Electrical Interface Weight and C.G.

Flight Plans and Operations Mission Profiles Aircrew Checklist and Procedures

Hazards Analysis Flight Request

Required before first flight for all new or modified instruments Results in approved Flight Request

Payload Integration Planning Process Overview

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Major Tasks and Timeline Technical Interchange Meeting Instrument Design and Analysis

Periodic Design Reviews Electrical Interface Design Loads Analysis

Upload Instrument and Checkout Two to three weeks before first flight Weight & Balance Verify Electrical Interface Install instrument in aircraft Installed system checks

Technical Brief Typically two weeks prior to first flight AFRC Approved Flight Request

Payload Integration Planning Process Overview

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Major Tasks and Timeline (Continued) Combined System Test (CST)

On aircraft engine running system checks Verify instrument operation and procedures Day prior to first flight

Engineering Check Flights Typically 10 to 15 hours depending on complexity of instrument Time to ascend and descend is ~ 1.4 hours, so by example …

3-hours of data collection would a require 4.4 hours mission Standard Crew Duty Day is 9-hours

Supports up to 5-hours mission without over-time Defined mission profiles Pilot Procedures and Checklists

Science Flights Separate SOFRS Request and Funding