Diesel aircraft engine

1. An engine, comprising:

two banks of four cylinders in a flat, opposed cylinder arrangement;

a crankshaft having four throws, a first pair of throws, comprising two of the four throws, the two throws being adjacent and coplanar and a plane of the first pair being orthogonally disposed with respect to a plane of a second pair of throws, the second pair of throws comprising the remaining two of the four throws, the two throws of the second pair being adjacent and coplanar, wherein the cylinders are numbered 1, 2, 3, and 4 in a first bank and 5, 6, 7, and 8 in a second bank and a firing order by cylinder is 1, 7, 2, 8, 6, 4, 5, and 3.

2. The engine of claim 1 wherein the firing intervals are eight by ninety degrees.

3. The engine of claim 1 including a first order moment balance shaft.

4. The engine of claim 3 , the balance shaft being rotationally driven at engine speed.

5. The engine of claim 1 , a piston being associated with each cylinder and being numbered correspondingly, pistons 1 and 5 being operably coupled to a first throw, pistons 2 and 6 being operably coupled to a second throw, pistons 3 and 7 being operably coupled to a third throw, and pistons 4 and 8 operably coupled to a fourth throw.

6. An integrated engine, comprising:

a unitary structure including at least the components of;

two banks of cylinders in a flat, opposed cylinder arrangement;

air charge compressor and air charge cooler assembly;

liquid engine cooler assembly;

liquid oil cooler assembly; and

wherein the cylinders are numbered 1, 2, 3, and 4 in a first bank and 5, 6, 7, and 8 in a second bank and a firing order by cylinder is 1, 7, 2, 8, 6, 4, 5, and 3.

7. The engine of claim 6 , a piston being associated with each cylinder and being numbered correspondingly, pistons 1 and 5 being operably coupled to a first throw, pistons 2 and 6 being operably coupled to a second throw, pistons 3 and 7 being operably coupled to a third throw, and pistons 4 and 8 operably coupled to a fourth throw.