This paper investigates design trends and performance trade-offs for a lift- and thrust-augmented asymmetric single main rotor helicopter. The primary goal of introducing lift and thrust augmentation is to increase the cruise speed to upward of 200 knots for the same payload and range of a conventional medium-lift utility helicopter. The configuration of interest is also compared to a thrust-augmented coaxial design. The convergence process was initiated using multiparameter sweeps with a simple performance model that filters out unrealistic combinations of design parameters based on blade loading and rotor lift offset. After applying this initial filter, additional design iterations were carried out using comprehensive analysis directly to calculate rotor power on-line for sizing. The second step, while relatively slow, still executes within minutes, and incorporates physics-based rotor performance models without apriori tuning of power factors or coefficients. Using the methodology, a thrust and lift-augmented asymmetric compound helicopter was designed with blade-level optimization. This configuration has a lower installed power and fuel requirements compared to a thrust-augmented coaxial helicopter, for the mission chosen herein. © Copyright 2016 by the American Helicopter Society International, Inc. All rights reserved.