Diamond DA42 NG weight and balance and performance calculator
Calculate the weight and balance of the Diamond DA42 NG online: enter people, baggage and fuel and get the takeoff mass, the CG and whether both are within the limits of the POH – plus the takeoff and landing distance for your airfield, temperature and wind. Free, no sign-up. The Diamond DA42 NG is a model of the Diamond DA42 Twin Star; built 2009–today.
* MTOW, sea level, 15 °C, no wind – BriefingPal result from the POH data
Calculate the Diamond DA42 NG weight, CG and takeoff distance
Your own empty mass (weighing report, optional)
The POH has no standard empty moment for this model – enter the empty mass CG from your weighing report to get the CG.
Leave empty to use the typical POH empty mass. Your aircraft's weighing report is what counts.
Calculated on the BriefingPal server from the POH data. Nothing is stored, no cookie. Planning aid only – the POH/AFM and your weighing report are authoritative.
Diamond DA42 NG key figures
| Maximum takeoff mass (MTOW) | 1,999 kg (4,407 lb) |
|---|---|
| Typical empty mass (POH sample) | 1,450 kg (3,197 lb) |
| Usable fuel | 50 US gal (189 L) |
| Total fuel capacity | 52 US gal (197 L) |
| Fuel type | Jet A-1 / diesel |
| Useful load with full fuel | 397 kg (875 lb) |
| Maximum baggage | 45 kg (99 lb) |
| Demonstrated crosswind | 25 kt |
| Best rate of climb speed Vy | 92 KIAS |
| Service ceiling | 18,000 ft |
| Built | 2009–today |
| Loading stations | baggage area 1, seat row 1, seat row 2, baggage area 2, baggage area 3, combined baggage limit, fuel |
Empty mass and useful load depend on your aircraft – its weighing report applies.
Diamond DA42 NG takeoff and landing distance
BriefingPal result from the POH charts at MTOW, no wind, dry paved runway, normal procedure, default flap setting, without safety factor. Use the calculator above for your mass, airfield, temperature and wind.
| Conditions | Takeoff ground roll | Takeoff over 50 ft | Landing over 50 ft | Landing ground roll |
|---|---|---|---|---|
| Sea level, 15 °C | 545 m (1,790 ft) | 870 m (2,850 ft) | 650 m (2,130 ft) | 390 m (1,280 ft) |
| 5,000 ft, 25 °C (density altitude ≈ 7,300 ft) | 845 m (2,770 ft) | 1,435 m (4,700 ft) | – | – |
Hot and high, the Diamond DA42 NG needs about 65 % more distance to clear 50 ft than at sea level. Calculate density altitude →
Diamond DA42 NG climb and cruise
| Rate of climb at sea level | Time / fuel to 6,500 ft | Cruise TAS at 6,500 ft | Fuel flow |
|---|---|---|---|
| 980 fpm | 7 min / 1.9 US gal | 109 kt | 8.1 US gal/h (31 L/h) |
MTOW, ISA, default power setting of the POH cruise table.
How to do the Diamond DA42 NG weight and balance
- Enter the loadingWeights of pilot, passengers and baggage per station, fuel in litres or US gallons. Each station limit and the MTOW are checked.
- Use your own empty massOptional: enter empty mass and empty CG from the weighing report of your Diamond DA42 NG. Without it the typical POH empty mass is used.
- Check CG and massThe traffic light shows whether the takeoff mass and the CG with and without fuel lie within the envelope of the POH.
- Takeoff and landingElevation, QNH, temperature, wind and runway give the takeoff and landing distance – compared with the runway length if you enter it.
Diamond DA42 NG compared with the other Diamond DA42 Twin Star models
| Model | MTOW | Usable fuel | Takeoff over 50 ft* | Cruise TAS* |
|---|---|---|---|---|
| Diamond DA42 L360 | 1,785 kg | 50 US gal | 745 m | 152 kt |
| Diamond DA42 NG | 1,999 kg | 50 US gal | 870 m | 109 kt |
* MTOW, sea level, 15 °C / 6,500 ft, ISA – BriefingPal result from the POH data.
Diamond DA42 NG – frequently asked questions
What is the MTOW of the Diamond DA42 NG?
The maximum takeoff mass of the Diamond DA42 NG is 1,999 kg (4,407 lb) according to the POH.
How much usable fuel does the Diamond DA42 NG carry?
50 US gal (189 L) usable (total capacity 52 US gal (197 L)). With the typical POH empty mass and full fuel, about 397 kg (875 lb) remain for people and baggage.
How long is the takeoff distance of the Diamond DA42 NG?
At MTOW, sea level, 15 °C and no wind the ground roll is about 545 m (1,790 ft) and the distance over 50 ft about 870 m (2,850 ft). At 5,000 ft and 25 °C it grows to about 1,435 m (4,700 ft). The calculator above gives the value for your conditions.
How do I calculate the CG of the Diamond DA42 NG?
Multiply each mass by its arm, add up the moments and divide by the total mass – the calculator above does this with the stations of the Diamond DA42 NG POH (baggage area 1, seat row 1, seat row 2, baggage area 2, baggage area 3, combined baggage limit, fuel) and checks the CG against the envelope.
How does the Diamond DA42 NG differ from other Diamond DA42 Twin Star models?
BriefingPal has 2 Diamond DA42 Twin Star models on file. Compared with them the Diamond DA42 NG has the highest MTOW (1,999 kg (4,407 lb)), 50 US gal (189 L) usable fuel and a takeoff distance over 50 ft of 870 m (2,850 ft) at MTOW.
Is the Diamond DA42 NG weight and balance calculator free?
Yes. The calculator on this page and the BriefingPal app are free and need no account. The app adds route planning, weather, NOTAM, fuel planning and a briefing PDF.
Data source
All figures come from the Pilot's Operating Handbook / Airplane Flight Manual of the Diamond DA42 NG (weight and balance and performance sections) and are computed with the BriefingPal engine – the same calculation as in the app. Planning aid only; the original POH/AFM and the weighing report of your aircraft remain authoritative.
Other Diamond DA42 Twin Star models
Calculators
Open the Diamond DA42 NG calculator
free · no sign-up · POH data