Grumman AA-1B Trainer/TR-2 weight and balance and performance calculator
Calculate the weight and balance of the Grumman AA-1B Trainer/TR-2 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 Grumman AA-1B Trainer/TR-2 is a model of the Grumman AA-1 Yankee/Trainer; built 1973–1976.
* MTOW, sea level, 15 °C, no wind – BriefingPal result from the POH data
Calculate the Grumman AA-1B Trainer/TR-2 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.
Grumman AA-1B Trainer/TR-2 key figures
| Maximum takeoff mass (MTOW) | 708 kg (1,560 lb) |
|---|---|
| Typical empty mass (POH sample) | 472 kg (1,041 lb) |
| Usable fuel | 22 US gal (83 L) |
| Total fuel capacity | 24 US gal (91 L) |
| Fuel type | AVGAS |
| Useful load with full fuel | 176 kg (387 lb) |
| Maximum baggage | 45 kg (100 lb) |
| Demonstrated crosswind | 11 kt |
| Best rate of climb speed Vy | 77 KIAS |
| Service ceiling | 14,409 ft |
| Built | 1973–1976 |
| Loading stations | front seats, baggage compartment, fuel |
Empty mass and useful load depend on your aircraft – its weighing report applies.
Grumman AA-1B Trainer/TR-2 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 | 270 m (890 ft) | 485 m (1,590 ft) | 335 m (1,100 ft) | 125 m (410 ft) |
| 5,000 ft, 25 °C (density altitude ≈ 7,300 ft) | 440 m (1,450 ft) | 925 m (3,030 ft) | – | – |
Hot and high, the Grumman AA-1B Trainer/TR-2 needs about 91 % more distance to clear 50 ft than at sea level. Calculate density altitude →
Grumman AA-1B Trainer/TR-2 climb and cruise
| Rate of climb at sea level | Time / fuel to 6,500 ft | Cruise TAS at 6,500 ft | Fuel flow |
|---|---|---|---|
| 700 fpm | 12 min / 1.5 US gal | 95 kt | 5.0 US gal/h (19 L/h) |
MTOW, ISA, default power setting of the POH cruise table (≈60 % power).
How to do the Grumman AA-1B Trainer/TR-2 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 Grumman AA-1B Trainer/TR-2. 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.
Grumman AA-1B Trainer/TR-2 compared with the other Grumman AA-1 Yankee/Trainer models
| Model | MTOW | Usable fuel | Takeoff over 50 ft* | Cruise TAS* |
|---|---|---|---|---|
| Grumman AA-1 Yankee | 680 kg | 22 US gal | 490 m | 104 kt |
| Grumman AA-1A Trainer | 680 kg | 22 US gal | 430 m | 96 kt |
| Grumman AA-1B Trainer/TR-2 | 708 kg | 22 US gal | 485 m | 95 kt |
| Grumman AA-1C Lynx/T-Cat | 726 kg | 22 US gal | 485 m | 107 kt |
* MTOW, sea level, 15 °C / 6,500 ft, ISA – BriefingPal result from the POH data.
Grumman AA-1B Trainer/TR-2 – frequently asked questions
What is the MTOW of the Grumman AA-1B Trainer/TR-2?
The maximum takeoff mass of the Grumman AA-1B Trainer/TR-2 is 708 kg (1,560 lb) according to the POH.
How much usable fuel does the Grumman AA-1B Trainer/TR-2 carry?
22 US gal (83 L) usable (total capacity 24 US gal (91 L)). With the typical POH empty mass and full fuel, about 176 kg (387 lb) remain for people and baggage.
How long is the takeoff distance of the Grumman AA-1B Trainer/TR-2?
At MTOW, sea level, 15 °C and no wind the ground roll is about 270 m (890 ft) and the distance over 50 ft about 485 m (1,590 ft). At 5,000 ft and 25 °C it grows to about 925 m (3,030 ft). The calculator above gives the value for your conditions.
How do I calculate the CG of the Grumman AA-1B Trainer/TR-2?
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 Grumman AA-1B Trainer/TR-2 POH (front seats, baggage compartment, fuel) and checks the CG against the envelope.
How does the Grumman AA-1B Trainer/TR-2 differ from other Grumman AA-1 Yankee/Trainer models?
BriefingPal has 4 Grumman AA-1 Yankee/Trainer models on file. Compared with them the Grumman AA-1B Trainer/TR-2 has an MTOW of 708 kg (1,560 lb) (range 680–726 kg), 22 US gal (83 L) usable fuel and a takeoff distance over 50 ft of 485 m (1,590 ft) at MTOW.
Is the Grumman AA-1B Trainer/TR-2 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 Grumman AA-1B Trainer/TR-2 (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 Grumman AA-1 Yankee/Trainer models
Calculators
Open the Grumman AA-1B Trainer/TR-2 calculator
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