The development project produced a new machine for harvesting wood from thinnings. This new machine is based on the concept of a harvester-forwarder. The concept of the harvester-forwarder is that felling and processing and forest haulage are carried out using the one and the same machine. The objective of this study connected to the project and conducted by Metsäteho Oy was to conduct an analysis of the structure of the time consumption, output and costs of the said harvester-forwarder based on a new harvesting technology and harvesting method when used in first-thinning pine stands and mixed stands. The harvester-forwarder involved in the study is a machine producing delimbed timber developed by the company S Pinomäki Ky. This report is based on Metsäteho Oy`s project report no 26.