lml@lancaironline.net Mailing List Archive

<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> >What is a PSRU? I have purchased a subaru and will be using a hydrolic >constannt speed prop. I hope. >Bobby >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> PSRU stands for prop speed reduction unit. Because props (for the most part) are designed to spin much slower than auto engines turn you have to bolt a psru to your subaru to reduce the engine rpm at the prop. We are also putting a Subaru 6cyl in our White Lightning. This engine will turn about 5,000-6,000 rpm and with a 2.2:1 psru, the prop will turn between 2,200 rpm and 2,700 rpm. To date, we have not found anyone who has then mounted a hydraulic constant speed prop to this configuration. The Marcotte PSRU has the capability to supply oil to the prop, but can't find anyone who has done this with a constant speed prop governor; therefore the electric constant speed is being considered. Greig Huggins >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML website: http://www.olsusa.com/Users/Mkaye/maillist.html Builders' Bookstore: http://www.buildersbooks.com/lancair >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>