| 摘要 |
A control device for the retractable undercarriage of aircraft and for the hatchdoors of the housing of the retracted undercarriage with their actuating and locking members and control members for supplying them in mechano-hydraulic sequential stages from a general lifting conduit and a general lowering conduit for the undercarriage, comprising a jack actuating said hatchdoors, a slide valve distributor supplying said jack, and a kinematic coupling mechanically operated by the undercarriage and placing said slide valve in three characteristic positions:
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