Civil Aviation VD3920-QR Ø184mm 200V AC 400Hz Galley and Lavatory Ventilation Fan
Dia. 184 mm x 270 mm Duct Fan · 400Hz AC
400 Hz AC fan for airborne 400 Hz platforms. Full datasheet, P-Q curve and dimensional drawing available through an RFQ.
Key specifications
Reference values for Civil Aviation VD3920-QR Ø184mm 200V AC 400Hz Galley and Lavatory Ventilation Fan at nominal input and in free air: 454.00 CFM free-air flow at 234.00 mmH2O static pressure, supply 200 V line / 115 V phase AC. Specifications are subject to change without notice; see the full datasheet for derating curves, tolerances and qualification data.
| Parameter | Specification |
|---|---|
| Frame size | Dia. 184 mm x 270 mm Duct Fan |
| Rated voltage | 200 V line / 115 V phase AC |
| Max airflow (free air) | 454.00 CFM |
| Max static pressure | 234.00 mmH2O |
| Rated rotational speed | 11,500 RPM |
Electrical & reliability
Input current, power, protection behavior and service life for Civil Aviation VD3920-QR at reference conditions.
| Parameter | Specification |
|---|---|
| Rotation direction | Counter-clockwise, viewed from impeller side |
Mechanical & environmental
Operating envelope, life expectancy and environmental qualification summary for Civil Aviation VD3920-QR. Full environmental test report available through an RFQ.
| Parameter | Specification |
|---|---|
| Frame size | Dia. 184 mm x 270 mm |
| Frame / impeller material | Aluminum alloy |
| Bearing type | Ball bearing |
| Weight | 3.2 kg max |
Environmental test details — including specific shock and acceleration profiles — are provided with the engineering review package upon request.
P-Q performance curve
Airflow vs. static pressure characteristics for Civil Aviation VD3920-QR at rated input.
VD3920-QR performance at a glance
Civil aviation fan specified for galley and lavatory extraction. The figures below are steady-state values at nominal input; use them for a first-pass fit and confirm the operating point against the full P-Q curve before release.
| Operating current | 3.1 A max |
| Rated power | 800 W max |
| Acoustic noise | 92 dB(A) max |
Full datasheet, P-Q curve, dimensional drawing and qualification report are available on request for this model.
Engineering notes for this model family
Push vs Pull Fan Configuration
How duct and cabin pressure decide whether a 400 Hz fan actually moves air.
Read the note →Altitude Derating in UAV and Avionics Cooling Fan Selection
Why an aircraft fan loses airflow at altitude, and how to size for the cruise condition.
Read the note →Common Cooling Fan Failure Modes
Bearing, winding and ingress failures that show up first in cabin and avionics returns.
Read the note →
