Evektor SportStar RTC weight and balance and performance calculator
Calculate the weight and balance of the Evektor SportStar RTC 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 Evektor SportStar RTC is a model of the Evektor SportStar / Harmony; build years not on file.
* MTOW, sea level, 15 °C, no wind – BriefingPal result from the POH data
Calculate the Evektor SportStar RTC 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.
Evektor SportStar RTC key figures
| Maximum takeoff mass (MTOW) | 600 kg (1,323 lb) |
|---|---|
| Typical empty mass (POH sample) | 325 kg (717 lb) |
| Usable fuel | 31.2 US gal (118 L) |
| Total fuel capacity | 31.7 US gal (120 L) |
| Fuel type | AVGAS |
| Useful load with full fuel | 190 kg (419 lb) |
| Maximum baggage | 25 kg (55 lb) |
| Demonstrated crosswind | 15 kt |
| Best rate of climb speed Vy | 67 KIAS |
| Service ceiling | 15,905 ft |
| Built | – |
| Loading stations | front seats, baggage compartment, fuel |
Empty mass and useful load depend on your aircraft – its weighing report applies.
Evektor SportStar RTC 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 | 130 m (420 ft) | 365 m (1,200 ft) | 360 m (1,180 ft) | 145 m (470 ft) |
| 5,000 ft, 25 °C (density altitude ≈ 7,300 ft) | 200 m (650 ft) | 565 m (1,860 ft) | – | – |
Hot and high, the Evektor SportStar RTC needs about 55 % more distance to clear 50 ft than at sea level. Calculate density altitude →
Evektor SportStar RTC climb and cruise
| Rate of climb at sea level | Time / fuel to 6,500 ft | Cruise TAS at 6,500 ft | Fuel flow |
|---|---|---|---|
| 880 fpm | 9 min / 1.1 US gal | 93 kt | 4.6 US gal/h (17 L/h) |
MTOW, ISA, default power setting of the POH cruise table (≈75 % power).
How to do the Evektor SportStar RTC 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 Evektor SportStar RTC. 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.
Evektor SportStar RTC compared with the other Evektor SportStar / Harmony models
| Model | MTOW | Usable fuel | Takeoff over 50 ft* | Cruise TAS* |
|---|---|---|---|---|
| Evektor SportStar RTC | 600 kg | 31.2 US gal | 365 m | 93 kt |
| Evektor Harmony LSA | 599 kg | 31.2 US gal | 485 m | 96 kt |
* MTOW, sea level, 15 °C / 6,500 ft, ISA – BriefingPal result from the POH data.
Evektor SportStar RTC – frequently asked questions
What is the MTOW of the Evektor SportStar RTC?
The maximum takeoff mass of the Evektor SportStar RTC is 600 kg (1,323 lb) according to the POH.
How much usable fuel does the Evektor SportStar RTC carry?
31.2 US gal (118 L) usable (total capacity 31.7 US gal (120 L)). With the typical POH empty mass and full fuel, about 190 kg (419 lb) remain for people and baggage.
How long is the takeoff distance of the Evektor SportStar RTC?
At MTOW, sea level, 15 °C and no wind the ground roll is about 130 m (420 ft) and the distance over 50 ft about 365 m (1,200 ft). At 5,000 ft and 25 °C it grows to about 565 m (1,860 ft). The calculator above gives the value for your conditions.
How do I calculate the CG of the Evektor SportStar RTC?
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 Evektor SportStar RTC POH (front seats, baggage compartment, fuel) and checks the CG against the envelope.
How does the Evektor SportStar RTC differ from other Evektor SportStar / Harmony models?
BriefingPal has 2 Evektor SportStar / Harmony models on file. Compared with them the Evektor SportStar RTC has the highest MTOW (600 kg (1,323 lb)), 31.2 US gal (118 L) usable fuel and a takeoff distance over 50 ft of 365 m (1,200 ft) at MTOW.
Is the Evektor SportStar RTC 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 Evektor SportStar RTC (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 Evektor SportStar / Harmony models
Calculators
Open the Evektor SportStar RTC calculator
free · no sign-up · POH data