Abstract: Various implementations include a rotor control device including a shaft extending along a rotational axis, a hub, first and second pitch control components, and a swashplate. The hub has a hub axis and is hingedly coupled to the shaft such that the hub axis is perpendicular to the rotational axis and stationary relative to the shaft. The hub is hingable about the hub axis relative to the rotational axis. The first pitch control component is coupled to the hub. The swashplate has the second pitch control component hingedly engaging the first pitch control component. The swashplate is movable along a swashplate plane transverse to the rotational axis. The shaft is rotatable about the rotational axis relative to the swashplate. Movement of the swashplate along the swashplate plane relative to the rotational axis causes the hub to periodically hinge about the hinge axis as the hub rotates about the rotational axis.

Abstract: Described herein are systems, methods, and software to develop applications using telemetry data and performance testing. In one implementation, a development computing system may obtain telemetry data associated with the application and use the telemetry data to determine iteration counts for testing each feature of the application. A performance test may then be executed by the development computing system on the application using the iteration counts to determine computing resource usage associated with the application. From the computing resource usage, the development computing system may identify replacement lines of code for the application to improve the computing resource usage.

Abstract: An electronic signature system includes infrastructure for securely managing document preparation during signing workflows through the assignment of permissions to users that control user actions to add, remove, and/or edit documents in a document package as part of an electronic signing workflow. The permissions may be assigned based on roles given to each user, and used to manage the signing workflow and user accesses to the document package. The electronic signature system determines whether to authorize the contributors to add, remove, and/or edit documents during the workflow according to the assigned permissions of each user. Document metadata is captured that identifies users and/or user groups associated user actions on particular documents. Access to those documents may be restricted using the document metadata. Once the document package is prepared, the document package is provided to a signer for review and for an electronic signature of documents of the document package.