7/27/2023 0 Comments Total engine airflow![]() Engines ranged from spark-ignition types to diesel even gas turbine and rocket engines were briefly produced. Napier & Son Ltd., a highly-respected British organization, produced some remarkable aircraft engines during its career as one of the premier British engine manufacturers. Results show that the Nomad performance claims are indeed legitimate, thus demonstrating that this form of compound-cycle engine deserves another look as a modern-day power source for certain aircraft applications.ĭ. Various engine power and speed settings at differing altitudes were then run with excellent agreement between model predictions and published data. Once the model was constructed, it was calibrated using stated sea level performance test data published by Napier. The model consists of the accepted equations and relationships describing the thermodynamic and fluid properties that are typically used for predicting various internal combustion engine performance parameters. This study constructed a numerical computer model of the Napier Nomad II aircraft engine with the intent of verifying the rather remarkable performance claims made for this interesting machine. ![]() Additionally, some residual exhaust thrust was available for propulsion. An infinitely variable, mechanical transmission coupled the turbomachine main shaft to the CI engine crankshaft to optimally combine the power outputs of each machine to drive the propeller. ![]() The compressor, driven by the turbine, supplied all airflow to the piston engine. diesel) piston engine coupled with a gas turbine engine, less combustors, as the CI engine became the gas generator that supplied the exhaust energy to drive the turbine. The Napier engineering group settled on a CI (Compression Ignition, i.e. Napier decided to use a “compound cycle” engine that made use of the normally wasted exhaust gas energy, the goal being to capture this energy, convert it to useful work, and feed back into the propeller shaft. undertook a project to design a highly efficient, propeller driven piston aircraft engine that was considerably more fuel-efficient than other engines in use at that time. If you choose to do business with this business, please let the business know that you contacted BBB for a BBB Business Profile.Īs a matter of policy, BBB does not endorse any product, service or business.Napier Nomad II Aircraft Engine Performance Verificationĭuring the mid-1940s, D. BBB Business Profiles are subject to change at any time. When considering complaint information, please take into account the company's size and volume of transactions, and understand that the nature of complaints and a firm's responses to them are often more important than the number of complaints.īBB Business Profiles generally cover a three-year reporting period. However, BBB does not verify the accuracy of information provided by third parties, and does not guarantee the accuracy of any information in Business Profiles. BBB asks third parties who publish complaints, reviews and/or responses on this website to affirm that the information provided is accurate. BBB Business Profiles may not be reproduced for sales or promotional purposes.īBB Business Profiles are provided solely to assist you in exercising your own best judgment.
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