Twin piston

N51AU

2009 Diamond DA42MNG

Registered No accidents on file
Built
2009
Serial
42.MN004
Class
Twin piston
Engines
2 × Austro E4 series
Status
Current as of October 2026
Registered owner
Aurora Flight Sciences (Corporation)
Based
Manassas, VA
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Registration record

N51AU on the FAA register

Type
2009 Diamond DA42MNG
Serial
42.MN004
Engines
2 × Austro E4 series
Registered owner
Aurora Flight Sciences
Manassas, VA
Certificate issued
2010-05-05
Airworthiness date
2025-07-15
Registration expires
2027-04-30
Airworthiness class
Experimental · research & development
Mode S (hex)
A65F29
Mode S (octal)
51457451
Seats (type)
4
Weight class
up to 12,499 lb
Range (type)
1,225 nm
Cruise (type)
175 kt
Status
Current as of October 2026
Registry history

Timeline

  • 2027-04-30
    Registration expires (renewal due).
  • 2025-07-15
    Airworthiness date on the current FAA record (experimental category (research & development)).
  • 2010-05-05
    Certificate of registration issued as N51AU.
  • 2009
    Manufactured (2009).
Overview

About N51AU

N51AU is a 2009 Diamond DA42MNG, serial number 42.MN004. The FAA register lists Aurora Flight Sciences as the registrant in Manassas, Virginia. The current certificate of registration was issued on May 5, 2010 and expires on April 30, 2027.

The FAA aircraft reference file describes the type as a twin piston, two Austro E4 series engines and 4 seats. Published figures for the type give a cruise speed of about 175 knots and a range of about 1,225 nm; actual performance depends on configuration, load and conditions. Its airworthiness certificate is experimental category (research & development), dated July 15, 2025.

No NTSB accident or incident reports and no FAA preliminary notices are on file for N51AU.

Cruise
175 kt
Range
1,225 nm
Takeoff over 50 ft
1,230 ft
Landing over 50 ft
1,269 ft
Fuel burn
16 gph

Published figures for the Diamond DA42MNG type. They describe the model, not this airframe's equipment or condition.

Safety record

Accident & incident history

✓ No NTSB accident or incident reports and no FAA preliminary notices on file for N51AU.

Sources: NTSB aviation accident database and CAROL case system, FAA preliminary accident & incident notices. Search accident records

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Browse: Diamond aircraft for sale· Aircraft registered in Virginia· Registry by state· FAA registry stats

Data: FAA Aircraft Registry (October 2026), including deregistered aircraft; NTSB and FAA accident data; fyiAero listing history. Individual owners' names are shown to signed-in users and street addresses are never shown. Type figures are published specifications, not this aircraft's.