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TWIN PISTON

Diamond DA42

One model from FAA type certificate data sheet A57CE. Every figure below is quoted from the sheet. Open any “Source” to see the words it comes from.

THE DATA SHEET

Authority
Federal Aviation Administration (United States)
Sheet
Type Certificate Data Sheet A57CE
Revision
34
Date
July 8, 2025
Holder
Diamond Aircraft Industries GmbH
Licence
US Government work, public domain (17 U.S.C. 105)

Open the sheet on the FAA Dynamic Regulatory System (opens in a new tab)

Performance figures (stall speeds, take-off and landing distances, climb, cruise and fuel burn) are in the aircraft's flight manual (POH/AFM), which we cannot reproduce. Always use the flight manual for the aircraft you fly.

This is a United States Federal Aviation Administration sheet. We show it as a US certification document, not as an Australian or New Zealand rule. Units are the sheet's own: pounds, US gallons and quarts, and knots or mph as stated.

How we copied the sheet. Quotes are from our stored text copy of the sheet, taken from the text layer of the FAA's online viewer. We rebuilt lines from the text positions, joined wrapped lines, marked wide gaps between table cells with |, removed page headers and footers, and replaced symbol-font characters with the symbols they print as. Check the original sheet before relying on any figure.

Models not shown. The sheet also covers the DA 42 with Technify engines, the DA 42 M-NG and the DA 62. We include the DA 42 NG.

SPEC SHEET

Diamond DA42: DA 42 NG

The sheet's heading for this modelModel DA 42 NG (Normal Category)

Source for the model heading

II. Model DA 42 NG (Normal Category), approved April 02, 2010

Compare the DA 42 NG with another aircraft

Engine

Engine
Austro Engine E4two of this engineThe sheet lists jet fuel for this model.
Source for Engine

Engine | 2 Austro Engine E4, see Note 1

Rated power
123,5 kWeach engine, take-off, 5 minThe sheet gives power in kilowatts with a decimal comma.
Source for Rated power

Max T/O Power (5min) 100%(123,5 kW)

Engine speed limit
2,300 rpmtake-off, 5 min, propeller shaft
Source for Engine speed limit

Engine Limits | Maximum Take-Off (5 min), 2300 rpm

Propeller
MT Propeller Co. MTV-6-R-C-F/CF187-129The sheet lists a second propeller that comes with a modification.
Source for Propeller

Propeller | 2 MT Propeller Co. MTV-6-R-C-F/CF187-129

Fuel and oil

Fuel capacity
52 US galstandard tanks≈ 197 L (converted)The sheet lists an auxiliary tank.
Source for Fuel capacity

Fuel Capacity | With Standard Fuel Tank | 52 gallons (196.8 liters) total. 50 gallons (189.2 liters) usable.

Usable fuel
50 US galstandard tanks≈ 189 L (converted)
Source for Usable fuel

Fuel Capacity | With Standard Fuel Tank | 52 gallons (196.8 liters) total. 50 gallons (189.2 liters) usable.

Oil capacity
7,4 US qteach engine, maximum≈ 7 L (converted)
Source for Oil capacity

Oil Capacity | Each engine | Maximum – 7,4 qts (7.0 liters).

Weights and loading

Maximum weight
Normal category4,189 lbtake-off≈ 1,900 kg (converted)The sheet allows a higher figure with a modification.
Source for Maximum weight, Normal category

Takeoff (Normal Category) | 4189 lbs. (1900 kgs)

Seats
4
Source for Seats

No. of Seats | 4

Baggage limit

Left out. The sheet gives separate limits for the front and aft compartments.

C.G. range

Left out. The sheet gives several sets of limits that depend on modifications.

Airspeed limits

Never exceed speed (Vne)
192 kt CAS
Source for Never exceed speed (Vne)

Airspeed Limits | Maximum Never Exceed Speed VNE | 192 KCAS, 220 mph

Maximum structural cruising speed (Vno)
155 kt EASThe sheet gives this speed in knots EAS.
Source for Maximum structural cruising speed (Vno)

Maximum Structural Cruising Speed VNO | 155 KEAS, 178 mph

Manoeuvring speed (Va)
The sheet's symbol is Vo: operating manoeuvring speed above 3968 lb125 kt EAS
Source for Manoeuvring speed (Va), The sheet's symbol is Vo: operating manoeuvring speed above 3968 lb

V O (above 3968 lbs / 1800 kg) | 125 KEAS, 144 mph

Maximum flap extended speed (Vfe)
approach flap135 kt EAS
Source for Maximum flap extended speed (Vfe), approach flap

V FE Approach Flaps | 135 KEAS, 155 mph

full flap110 kt EAS
Source for Maximum flap extended speed (Vfe), full flap

Maximum Flap Extending Speed VFE Full Flaps | 110 KEAS, 127 mph

Reference

Datum
86.5 in. in front of the leading edge of the stub wing at the wing joint
Source for Datum

Reference Datum | 86.5 in. (2.196 meter) in front of leading edge of stub-wing at the wing joint

Certification basis
Joint Aviation Requirements (JAR) 23, Amdt. 1, dated February 01, 2001The sheet says this basis is equivalent to FAR Part 23 with listed amendments.
Source for Certification basis

- Joint Aviation Requirements (JAR) 23, Amdt. 1, dated February 01, 2001.

COCKPIT

The DA 42 NG limits on an airspeed indicator

Where the sheet gives them in knots, the dial shows Vne as a red line, the caution range from Vno to Vne as a yellow arc, a green tick at Vno and white ticks at the flap limit speeds (Vfe). The sheet gives flap limits, not instrument markings, and the stall speeds where the green and white arcs start are not in it.

PANEL LAYOUT

Classic six-pack

These are example panels drawn by us. They do not show the panel fitted to any Diamond DA42. Only the airspeed markings come from this model's data sheet.

  • 406080100120140160180200220VfeVfeVnoAIRSPEEDKNOTSAirspeed indicator
  • 2020101010102020Attitude indicator
  • 01234567891013hPaALTFEETAltimeter
  • LRTURN COORDINATOR2 MINNO PITCH INFORMATIONTurn coordinator
  • N36E1215S2124W3033Heading indicator
  • 0.5.5111.51.522UPDOWNVERTICAL SPEED1000 FT/MINVertical speed indicator
  • 05101520253035RPM×100Tachometer
  • 075150OIL°COil temperature
  • 060120OILPSIOil pressure
  • EEFFLRFUELFuel quantity
  • 0510SUCTIONin HgSuction gauge
0 kt

What the dial shows

  • Red line: never exceed speed (Vne)192 kt CAS
    Source for the red line

    Airspeed Limits | Maximum Never Exceed Speed VNE | 192 KCAS, 220 mph

  • Green tick: Vno, top of the green arc155 kt EAS
    Source for the green tick

    Maximum Structural Cruising Speed VNO | 155 KEAS, 178 mph

  • White tick: Vfe, approach flap, a flap limit speed135 kt EAS
    Source for the white tick, approach flap

    V FE Approach Flaps | 135 KEAS, 155 mph

  • White tick: Vfe, full flap, a flap limit speed110 kt EAS
    Source for the white tick, full flap

    Maximum Flap Extending Speed VFE Full Flaps | 110 KEAS, 127 mph

  • The sheet gives these speeds on different bases: Vne in knots CAS; Vno and Vfe in knots EAS.
  • Vno is in knots EAS and Vne in knots CAS, so we have not joined them with a yellow arc.
  • White ticks mark the flap limit speeds (Vfe) the sheet gives. The sheet gives flap limits, not instrument markings, so the flight manual says where this aircraft's white arc ends.
  • The low ends of the white and green arcs are stall speeds. They come from the flight manual, so we have left them unmarked.

The other instruments are drawn at rest and are not linked to this aircraft. Learn what each instrument shows in the cockpit explorer.

For learning only. Not for flight planning or use in flight. Figures are certification limits from Federal Aviation Administration, Type Certificate Data Sheet A57CE, Revision 34, retrieved 31 October 2026. Conversions marked “converted” are our own arithmetic. No manufacturer images are used. The instruments are drawn by us. Back to all aircraft.