Unfortunately the X-plane model seems to be at fault there, I also experience the popping up nose flaps effect, and usually just compensate for it with a lot of forward stick for a moment. Theoretically high wing aircraft pitch up with flaps more than low wing, like the Cirrus Jet.
Specs
Weight- Maximum Ramp Weight6040 lbs (2740 kg)
- Maximum Takeoff Weight6000 lbs (2727 kg)
- Basic Empty Weight3550 lbs (1610 kg)
- Max Zero Fuel Weight4900 lbs (2223 kg)
- Maximum Usable Fuel2000 lbs (907 kg)
Engine
- ManufacturerWilliams International
- ModelFJ33-5A
- Thrust~1846 lbs.
- Wingspan38.7 ft. (11.79 m)
- Length30.7 ft. (9.42 m)
- Height10.9 ft. (3.32 m)
- Cabin Width5.1 ft. (1.56 m)
- Cabin Height4.1 ft. (1.24 m)
- Takeoff2036 ft. (620 m)
- Takeoff Over 50 ft Obstacle3192 ft. (973 m)
- Climb Rate1609 ft./min.
- Max operating Altitude31,000 ft.
- Stall Speed with Flaps67 knots
- Max Cruise Speed311 KTAS
- Landing Groundroll1628 ft. (496 m)