Enclosure (1) H-65 Environmental Control System (ECS) Performance Objectives.pdf
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- Attached to
- MH-65 Environmental Control System (ECS), Procurement and Sustainment; Request for Information (RFI)
- Solicitation number
- 70Z03826IB0000024
About this file
This document is an Enclosure detailing the Performance Objectives for the H-65 Environmental Control System (ECS). The system must provide 3 or more Tons of cooling with a 600 CFM total airflow, capable of operating in external temperatures up to 103°F and maintaining a cabin temperature of 73°F. Specific design requirements include directing 100 CFM of cooled air into the avionics compartment at 38°F (minimum 73°F), with separate temperature sensors and controls for the avionics and cabin areas.
Key technical specifications mandate a maximum weight of 100 lbs (35 lbs desired), with a preferred size of 11.5 in x 28 in x 28 in. The system must include water separation, low and high temperature protection (38-170°F), and an air distribution system for the airframe. It must be capable of cooling avionics up to the H-65 maximum operating temperature of 122°F (50°C), with a mixing duct that allows cabin air temperature control between 38°-170°F. The document notes that ducting and other equipment are located in adjacent compartments, and airframe ducting will be calculated separately.
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Other files
| File | Type | Posted |
|---|---|---|
| Enclosure (2) H-65 Data.pdf | ||
| Enclosure (3) ECS Compartment CAD model.pdf |
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Text version
Enclosure (1)
H-65 Environmental Control System (ECS) Performance Objectives
1. Cooling: 3 or more Tons required Airflow: 600 total CFM Desired.
2. Operating Environment: Normal operations: Outside: 103 ̊ F/50% RH. Cabin: 73 ̊
F/50% RH. The system must be capable of cooling avionics up to the H-65 maximum operating temperature of 122 ̊ F (50 ̊ C).
3. Design Details:
100 CFM cooled air directed into avionics compartment. The avionics cooled air will be supplied at 38 ̊ F desired, 73 ̊ F required.
Separate temperature sensor and control for avionics compartment and cabin. Mixing duct with conditioned air, sensors and controls for cabin air temperature outlet 38 ̊ -170 ̊ F.
Water separation.
Low and high temperature protection (38-̊ 170 ̊ F) Airframe equipment: air distribution system.
4. Weight: 35 lbs. desired, 100 lbs. maximum. Note: weight includes the heat/cooling unit and controls. Airframe ducting is calculated separately.
5. Size: 11.5 in x 28 in x 28 in desired. See attached depiction and CAD model of the current ECS compartment. Note: There is ducting, and other equipment located in the adjacent compartments.
File details come from the government source that posted it. Updated .