Diamond DA40 D TDI weight and balance and performance calculator
Calculate the weight and balance of the Diamond DA40 D TDI 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 DA40 D TDI is a model of the Diamond DA40 Star; built 2002–2013.
* MTOW, sea level, 15 °C, no wind – BriefingPal result from the POH data
Calculate the Diamond DA40 D TDI 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 DA40 D TDI key figures
| Maximum takeoff mass (MTOW) | 1,150 kg (2,535 lb) |
|---|---|
| Typical empty mass (POH sample) | 794 kg (1,750 lb) |
| Usable fuel | 28 US gal (106 L) |
| Total fuel capacity | 30 US gal (114 L) |
| Fuel type | Jet A-1 / diesel |
| Useful load with full fuel | 271 kg (597 lb) |
| Maximum baggage | 30 kg (66 lb) |
| Demonstrated crosswind | 20 kt |
| Best rate of climb speed Vy | 66 KIAS |
| Service ceiling | 16,400 ft |
| Built | 2002–2013 |
| Loading stations | front seats, rear seats, baggage compartment, fuel |
Empty mass and useful load depend on your aircraft – its weighing report applies.
Diamond DA40 D TDI 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 | 335 m (1,110 ft) | 640 m (2,110 ft) | 735 m (2,420 ft) | 285 m (930 ft) |
| 5,000 ft, 25 °C (density altitude ≈ 7,300 ft) | 500 m (1,630 ft) | 965 m (3,170 ft) | – | – |
Hot and high, the Diamond DA40 D TDI needs about 51 % more distance to clear 50 ft than at sea level. Calculate density altitude →
Diamond DA40 D TDI climb and cruise
| Rate of climb at sea level | Time / fuel to 6,500 ft | Cruise TAS at 6,500 ft | Fuel flow |
|---|---|---|---|
| 550 fpm | 12 min / 1.5 US gal | 130 kt | 5.8 US gal/h (22 L/h) |
MTOW, ISA, default power setting of the POH cruise table.
How to do the Diamond DA40 D TDI 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 DA40 D TDI. 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 DA40 D TDI compared with the other Diamond DA40 models
| Model | MTOW | Usable fuel | Takeoff over 50 ft* | Cruise TAS* |
|---|---|---|---|---|
| Diamond DA40-180 | 1,200 kg | 40.2 US gal | 450 m | 125 kt |
| Diamond DA40 D TDI | 1,150 kg | 28 US gal | 640 m | 130 kt |
| Diamond DA40 NG | 1,310 kg | 28 US gal | 595 m | 130 kt |
* MTOW, sea level, 15 °C / 6,500 ft, ISA – BriefingPal result from the POH data.
Diamond DA40 D TDI – frequently asked questions
What is the MTOW of the Diamond DA40 D TDI?
The maximum takeoff mass of the Diamond DA40 D TDI is 1,150 kg (2,535 lb) according to the POH.
How much usable fuel does the Diamond DA40 D TDI carry?
28 US gal (106 L) usable (total capacity 30 US gal (114 L)). With the typical POH empty mass and full fuel, about 271 kg (597 lb) remain for people and baggage.
How long is the takeoff distance of the Diamond DA40 D TDI?
At MTOW, sea level, 15 °C and no wind the ground roll is about 335 m (1,110 ft) and the distance over 50 ft about 640 m (2,110 ft). At 5,000 ft and 25 °C it grows to about 965 m (3,170 ft). The calculator above gives the value for your conditions.
How do I calculate the CG of the Diamond DA40 D TDI?
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 DA40 D TDI POH (front seats, rear seats, baggage compartment, fuel) and checks the CG against the envelope.
How does the Diamond DA40 D TDI differ from other Diamond DA40 models?
BriefingPal has 3 Diamond DA40 models on file. Compared with them the Diamond DA40 D TDI has the lowest MTOW (1,150 kg (2,535 lb)), 28 US gal (106 L) usable fuel and a takeoff distance over 50 ft of 640 m (2,110 ft) at MTOW.
Is the Diamond DA40 D TDI 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 DA40 D TDI (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 DA40 models
Calculators
Open the Diamond DA40 D TDI calculator
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