Van's RV-12iS weight and balance and performance calculator
Calculate the weight and balance of the Van's RV-12iS 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 Van's RV-12iS is a model of the Van's RV-12; built 2017–today.
* MTOW, sea level, 15 °C, no wind – BriefingPal result from the POH data
Calculate the Van's RV-12iS 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.
Van's RV-12iS key figures
| Maximum takeoff mass (MTOW) | 599 kg (1,320 lb) |
|---|---|
| Typical empty mass (POH sample) | 356 kg (785 lb) |
| Usable fuel | 19.7 US gal (75 L) |
| Total fuel capacity | 20.2 US gal (76 L) |
| Fuel type | AVGAS |
| Useful load with full fuel | 189 kg (417 lb) |
| Maximum baggage | 34 kg (75 lb) |
| Demonstrated crosswind | 11 kt |
| Best rate of climb speed Vy | 75 KIAS |
| Service ceiling | 15,582 ft |
| Built | 2017–today |
| Loading stations | front seats, baggage compartment, fuel |
Empty mass and useful load depend on your aircraft – its weighing report applies.
Van's RV-12iS 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 | 230 m (750 ft) | 425 m (1,390 ft) | 460 m (1,510 ft) | 160 m (530 ft) |
| 5,000 ft, 25 °C (density altitude ≈ 7,300 ft) | 355 m (1,160 ft) | 725 m (2,380 ft) | – | – |
Hot and high, the Van's RV-12iS needs about 71 % more distance to clear 50 ft than at sea level. Calculate density altitude →
Van's RV-12iS climb and cruise
| Rate of climb at sea level | Time / fuel to 6,500 ft | Cruise TAS at 6,500 ft | Fuel flow |
|---|---|---|---|
| 910 fpm | 9 min / 1.7 US gal | 117 kt | 5.0 US gal/h (19 L/h) |
MTOW, ISA, default power setting of the POH cruise table.
How to do the Van's RV-12iS 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 Van's RV-12iS. 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.
Van's RV-12iS compared with the other Van's RV-12 models
| Model | MTOW | Usable fuel | Takeoff over 50 ft* | Cruise TAS* |
|---|---|---|---|---|
| Van's RV-12 (912 ULS) | 599 kg | 19.8 US gal | 425 m | 101 kt |
| Van's RV-12iS | 599 kg | 19.7 US gal | 425 m | 117 kt |
* MTOW, sea level, 15 °C / 6,500 ft, ISA – BriefingPal result from the POH data.
Van's RV-12iS – frequently asked questions
What is the MTOW of the Van's RV-12iS?
The maximum takeoff mass of the Van's RV-12iS is 599 kg (1,320 lb) according to the POH.
How much usable fuel does the Van's RV-12iS carry?
19.7 US gal (75 L) usable (total capacity 20.2 US gal (76 L)). With the typical POH empty mass and full fuel, about 189 kg (417 lb) remain for people and baggage.
How long is the takeoff distance of the Van's RV-12iS?
At MTOW, sea level, 15 °C and no wind the ground roll is about 230 m (750 ft) and the distance over 50 ft about 425 m (1,390 ft). At 5,000 ft and 25 °C it grows to about 725 m (2,380 ft). The calculator above gives the value for your conditions.
How do I calculate the CG of the Van's RV-12iS?
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 Van's RV-12iS POH (front seats, baggage compartment, fuel) and checks the CG against the envelope.
How does the Van's RV-12iS differ from other Van's RV-12 models?
BriefingPal has 2 Van's RV-12 models on file. Compared with them the Van's RV-12iS has an MTOW of 599 kg (1,320 lb) (range 599–599 kg), 19.7 US gal (75 L) usable fuel and a takeoff distance over 50 ft of 425 m (1,390 ft) at MTOW.
Is the Van's RV-12iS 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 Van's RV-12iS (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 Van's RV-12 models
Calculators
Open the Van's RV-12iS calculator
free · no sign-up · POH data