Robin DR 400/180 Régent ed. 1 weight and balance and performance calculator

Calculate the weight and balance of the Robin DR 400/180 Régent ed. 1 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 Robin DR 400/180 Régent ed. 1 is a model of the Robin DR 400; built 1972–1979.

1,100 kgMTOW

49.9 US galUsable fuel

610 mTakeoff over 50 ft*

394 kgUseful load, full fuel

* MTOW, sea level, 15 °C, no wind – BriefingPal result from the POH data

Calculate the Robin DR 400/180 Régent ed. 1 weight, CG and takeoff distance

Units

Pilot and front passenger lbRear passengers lbBaggage lb (max 132 lb)Fuel at takeoff US gal (usable 49.9 US gal)

Your own empty mass (weighing report, optional)

Empty mass lbEmpty mass CG (arm) in

Leave empty to use the typical POH empty mass. Your aircraft's weighing report is what counts.

Airfield and runway (takeoff and landing)

Elevation ftQNH inHgTemperature °CHeadwind ktRunway surfaceRunway length (TORA/LDA) ft

Full flight planning in BriefingPal →

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.

Robin DR 400/180 Régent ed. 1 key figures

Maximum takeoff mass (MTOW)	1,100 kg (2,425 lb)
Typical empty mass (POH sample)	570 kg (1,257 lb)
Usable fuel	49.9 US gal (189 L)
Total fuel capacity	50.2 US gal (190 L)
Fuel type	AVGAS
Useful load with full fuel	394 kg (869 lb)
Maximum baggage	60 kg (132 lb)
Demonstrated crosswind	22 kt
Best rate of climb speed Vy	92 KIAS
Service ceiling	15,500 ft
Built	1972–1979
Loading stations	front seats, rear seats, baggage compartment, fuel

Empty mass and useful load depend on your aircraft – its weighing report applies.

Robin DR 400/180 Régent ed. 1 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	315 m (1,030 ft)	610 m (2,000 ft)	530 m (1,740 ft)	250 m (820 ft)
5,000 ft, 25 °C (density altitude ≈ 7,300 ft)	520 m (1,700 ft)	1,010 m (3,310 ft)	–	–

Hot and high, the Robin DR 400/180 Régent ed. 1 needs about 65 % more distance to clear 50 ft than at sea level. Calculate density altitude →

Robin DR 400/180 Régent ed. 1 climb and cruise

Rate of climb at sea level	Time / fuel to 6,500 ft	Cruise TAS at 6,500 ft	Fuel flow
830 fpm	10 min / 1.6 US gal	129 kt	8.4 US gal/h (32 L/h)

MTOW, ISA, default power setting of the POH cruise table (≈60 % power).

How to do the Robin DR 400/180 Régent ed. 1 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 Robin DR 400/180 Régent ed. 1. 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.

Robin DR 400/180 Régent ed. 1 compared with the other Robin DR 400 models

Model	MTOW	Usable fuel	Takeoff over 50 ft*	Cruise TAS*
Robin DR 400 2+2	865 kg	26.4 US gal	510 m	103 kt
Robin DR 400/120 Dauphin 2+2	900 kg	28.8 US gal	535 m	100 kt
Robin DR 400/140B Major	1,000 kg	28.7 US gal	590 m	117 kt
Robin DR 400/160 Chevalier/Major	1,050 kg	49.9 US gal	590 m	125 kt
Robin DR 400/180 Régent	1,100 kg	49.9 US gal	515 m	127 kt
Robin DR 400/180 R Remorqueur	1,000 kg	28.8 US gal	400 m	118 kt
Robin DR 400/160 ed. 1	1,050 kg	49.9 US gal	620 m	123 kt
Robin DR 400/180 Régent ed. 1	1,100 kg	49.9 US gal	610 m	129 kt
Robin DR 400/140 Major	1,000 kg	29.1 US gal	550 m	121 kt
Robin DR 401-155CDI	1,100 kg	28.7 US gal	400 m	93 kt
Robin DR 400/500 Président 200i	1,150 kg	48.6 US gal	465 m	130 kt

* MTOW, sea level, 15 °C / 6,500 ft, ISA – BriefingPal result from the POH data.

Robin DR 400/180 Régent ed. 1 – frequently asked questions

What is the MTOW of the Robin DR 400/180 Régent ed. 1?

The maximum takeoff mass of the Robin DR 400/180 Régent ed. 1 is 1,100 kg (2,425 lb) according to the POH.

How much usable fuel does the Robin DR 400/180 Régent ed. 1 carry?

49.9 US gal (189 L) usable (total capacity 50.2 US gal (190 L)). With the typical POH empty mass and full fuel, about 394 kg (869 lb) remain for people and baggage.

How long is the takeoff distance of the Robin DR 400/180 Régent ed. 1?

At MTOW, sea level, 15 °C and no wind the ground roll is about 315 m (1,030 ft) and the distance over 50 ft about 610 m (2,000 ft). At 5,000 ft and 25 °C it grows to about 1,010 m (3,310 ft). The calculator above gives the value for your conditions.

How do I calculate the CG of the Robin DR 400/180 Régent ed. 1?

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 Robin DR 400/180 Régent ed. 1 POH (front seats, rear seats, baggage compartment, fuel) and checks the CG against the envelope.

How does the Robin DR 400/180 Régent ed. 1 differ from other Robin DR 400 models?

BriefingPal has 11 Robin DR 400 models on file. Compared with them the Robin DR 400/180 Régent ed. 1 has an MTOW of 1,100 kg (2,425 lb) (range 865–1,150 kg), 49.9 US gal (189 L) usable fuel and a takeoff distance over 50 ft of 610 m (2,000 ft) at MTOW.

Is the Robin DR 400/180 Régent ed. 1 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 Robin DR 400/180 Régent ed. 1 (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 Robin DR 400 models

Calculators

Open the Robin DR 400/180 Régent ed. 1 calculator

free · no sign-up · POH data

Open the Robin DR 400/180 Régent ed. 1 calculatorfree · no sign-up · POH data