Author Topic: 1.998 109 flight charactaristics  (Read 411 times)

Offline detch01

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1.998 109 flight charactaristics
« on: January 08, 2004, 09:22:44 AM »
Auto Pilots:
Auto-takeoff: smooth, wings stayed level all the way through, ball was just left of centre once the gear was up.
Auto-LvL (X): wings stayed level from stall warning to mil power cruise, ball stayed centered.
Auto-Climb (alt+X): Wings stayed level, ball was just to the left of centre.
Auto-Angle (shift+X): Wings stayed level, ball stayed centered in level flight, just left of centre at climb angles higher than about 10 degrees.

Manual Flight:
At slow speeds the right wing is noticeably heavy. As IAS increased to about 210mph the heaviness of the right wing decreased to almost nil.

Power off stalls:
Wings level. Ailerons were effective, pronounced and increasing right wing heavy to the stall break. At the stall break the ball was far left even with rudder input to correct. At the break it went into a nose oscillation (nose high) for several seconds before breaking downward into a left turn spin. Spin was stable with no control inputs and recovered immediately with opposite rudder and gentle stick forward.
Turning (to the right, using rudder to increase turn rate, elevator to keep the nose up and left roll input to keep the wings at about 20 degrees right bank). Ailerons remained effective all the way through to the break. Pronounced right wing heavy and severe nose wobble while the control inputs were kept on, broke into a right hand spin when the controls were released. Recovery was immediate with standard technique.
Power on stalls:
Level. Similar to power off stalls, right wing heaviness increasing to the break. Entered a left hand spin on the break, very little nose wobble. Recovery immediate once power was reduced and standard recovery technique was used.
Turning (right hand turn). Similar to power off with the exception of higher deck angles, to the break. Pronounced and prolonged nose wobble at the break and a slow rotating, nose high spin entered once control inputs released. Nose came down after about 2 turns and then recovery was normal.

Overall, pre, during and post stall the 109 seems much much better. In power-off, slow speed flight it is very right wing heavy requiring a lot of roll and rudder input. Approaches and landings are going to be challenging for the unwary. The rest of the flight model seems really good.

Edit: All of the above results are with combat trim on. With combat trim off, the 109 you can trim out the right wing heavy fairly well.

Hope this helps.

Cheers,
« Last Edit: January 08, 2004, 10:50:06 AM by detch01 »
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