1. :: Are you sure you don't just have a leaky flap valve ? 2. The flap valve is a simple hinged flap over a hole in the wing. 3. This consists of a flap valve in the air intake. 4. The lane is prone to tidal flooding and the outfall is protected by a flap valve . 5. This causes the flap valve to snap shut, starving the engine of air and shutting it down. 6. The device consists of a mouth piece, a flap valve , an exhaust pipe, and an air collector. 7. The topic could be toilet flap valves and I would be happy to pull up a stool. 8. These systems tend to use inflatable pneumatic bladders, lockable flap valves or motorised penstock valves to seal the site. 9. Paucton's rotorcraft was man-powered, while another approach, also originally studied by da Vinci, was the use of flap valves . 10. Low pressure shouldn't make a difference-it could just be a coincidence that the flap valve developed it's leak at that moment.
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