![]() ![]() The test stand information can be quite interesting and informative. Its not especially their fault.they have never been taught properly.įor another source of information on these big-bore TCM engines, also has some helpful information.Īnd finally, you might consider joining the Cessna Pilots Association where you will find, after doing a search, considerable information from the folks in Ada, Oklahoma (GAMI) who have done rather extensive tests on all sorts of GA engines, especially large turbosupercharged TCM engines. Many flight instructors today have not had the benefit of factory engine/aircraft courses, so continue to perpetuate mis-information.and it just grows from there. Keep in mind however, that this site requires you to register, and the information provided is checked against actual engine serial numbers, as it has been compiled to assist owners with any problems that are encountered. You might try to have a look on the TCM website for much helpful information. However, large and very rapid throttle movements can and have been very detremental to large GA engine longevity, due to excessive pendulum damper bushing wear. TCM have done extensive tests and have failed to find any particular problem with rapid cooling issues with their engines, when used in regular day to day flying. The reason that the mixture is closed first is because the engine will continue to pump air into the cylinders during the rapid power reduction (after all, the engine really is a large air pump, with fuel added) and in this case, excessive bifler pendulum damper (counterweight) bushing wear will be significantly reduced, thereby prolonging the life of the engine.Īir ambulence operators who have trained their pilots PROPERLY in the operation of the GTSIO engine are generally seeing the engine continue to run to TBO, without much difficulty. Lets look at point number two more closely. This is all covered by a service bulletin issued long ago by TCM, so I'm a tad surprised that more pilots (and charter carriers etc) are not familiar with its contents. Then, close the throttle, move the mixture to full rich, and slowly open the throttle to the approximate zero thrust position. With the engine at or near max power, rapidly move the mixture control to the idle cut off position. Slowly retard the throttle to the approximate zero thrust position.Ģ. It has been known for many years that the proper way to simulate an engine failure in a GTSIO powered airplane, can be done one of two ways.ġ. Now, some pilots who, unfortunately, are not familiar with, nor how to properly operate this rather interesting GA engine, operate it INCORRECTLY either due to poor training or just plain stupidity. This engine is also used on the following. The Cessna 421 is powered by the TCM GTSIO-520 engine. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
January 2023
Categories |