3 ms·
They're fairly unstable. The trouble is that at the wingtips, if the wing twists up, aerodynamics forces tend to push it more up. So there's a positive feedbac
by nwallin 7y ago
They're fairly unstable.
The trouble is that at the wingtips, if the wing twists up, aerodynamics forces tend to push it more up. So there's a positive feedback loop.
Another problem is that if you yaw slightly, the yawed backward wing gets more straight on airflow, and the forward wing gets less, causing a stronger yaw force. Again, positive feedback loop.
- Bendingo 7y ago> Another problem is that if you yaw slightly, the yawed backward wing gets more straight on airflow, and the forward wing gets less, causing a stronger yaw force According to geometry, this problem must also occur with conventional backward swept wings.
- p_l 7y agoThe geometry makes forward swept wing destabilize further, while classic design self-stabilizes (or oscillates). That said, slight forward swept had been used for years in many planes, it's the more extreme angles that get the fun mentions.