Vortex Generator Kit & Stall Fences for PA-31 & PA-31-325CR
New Gross Takeoff Weight of 6,700 lbs.

Factory
BLR modified
Improvement
Max Ramp Weight 6,540 6,740 +200
Gross Takeoff Weight 6,500 6,700 +200
Zero Fuel Weight 6,000 6,200 +200
Aft. CG Limit 136" 138" +2
Vmc 83 71 -7
Vmc - Flaps 15° n/a 68 New
Stall Speed - Flaps Up 77 77 No Change
Stall Speed - Flaps 15° 74 74 No Change
Stall Speed - Flaps 30° 71 71 No Change
Liftoff Speed 88 81 -7
Approach Speed 88 81 No Change

NOTE:
1. Stall & Liftoff speeds are given at the new gross weight of 6,700 lbs.
2. Vmcs are tested light weight, aft CG, wind milling propeller.
3. Approach is based on 1.3 X Vso at Max, landing weight of 6,500 lbs.