Williams F112...tämä veisi pientä purjekonemaista maataistelukoneeta huimaa vauhtia.
http://en.wikipedia.org/wiki/Williams_F112
Oliko tämä muuten se jonka idea ikään kuin lainattiin Suomesta ?
Kommentti HBA saitilta:
This is a high performance engine (twin spool, high bypass) and can not be compaired with the single spool small turbine engines generally found in small aircraft like the BD5J. It is a military engine designed for high thrust and low weight with good SFC and it does the job.
I worked on the early engine development in the 70s. The engine is not cheep nor easy to build or maintain. In the cruise missle, it is a single use engine but variations built for other applaication have typical engine life. Williams had a NASA contract to build a low cost affordable version of the engine but funding was cut part way into the program. Variations of the engine were used in several light jet airframes and it was the original engne selected for the Eclipse.
The specifications given in the F112 - Wikipedia, the free encyclopedia reference are for a special military high altitude fuel that further increases the SFC figures and makes it look slightly better that would otherwise be the case if compaired with standard SFC figures. The ALCM engine was designed to reliably start and run after hours or days of cold soak at 40,000 feet. If you can find one on the surplus market buy it. It is a great little engine if you don't mind working around some of the differences such as no electric start in the ALCM engine but a reliable one time air start at 40,000 feet. The Eclipse engine was a good engine but the airframe out grew the engine as it became overweight. That engine never made it into production. It is a good little, fringe of technology, engine waiting (for 40 years) for a viable application. (Do we need long range standoff nucular bombs to fight the middle east wars? Yes, we could solve the issue very quickly with just one of these engines in an existing airframe. You all better behave over there!!!)
http://en.wikipedia.org/wiki/Williams_F112
Oliko tämä muuten se jonka idea ikään kuin lainattiin Suomesta ?
Kommentti HBA saitilta:
This is a high performance engine (twin spool, high bypass) and can not be compaired with the single spool small turbine engines generally found in small aircraft like the BD5J. It is a military engine designed for high thrust and low weight with good SFC and it does the job.
I worked on the early engine development in the 70s. The engine is not cheep nor easy to build or maintain. In the cruise missle, it is a single use engine but variations built for other applaication have typical engine life. Williams had a NASA contract to build a low cost affordable version of the engine but funding was cut part way into the program. Variations of the engine were used in several light jet airframes and it was the original engne selected for the Eclipse.
The specifications given in the F112 - Wikipedia, the free encyclopedia reference are for a special military high altitude fuel that further increases the SFC figures and makes it look slightly better that would otherwise be the case if compaired with standard SFC figures. The ALCM engine was designed to reliably start and run after hours or days of cold soak at 40,000 feet. If you can find one on the surplus market buy it. It is a great little engine if you don't mind working around some of the differences such as no electric start in the ALCM engine but a reliable one time air start at 40,000 feet. The Eclipse engine was a good engine but the airframe out grew the engine as it became overweight. That engine never made it into production. It is a good little, fringe of technology, engine waiting (for 40 years) for a viable application. (Do we need long range standoff nucular bombs to fight the middle east wars? Yes, we could solve the issue very quickly with just one of these engines in an existing airframe. You all better behave over there!!!)
