Macchi L.2
The Macchi L.2 was an Italian biplane flying boat developed from the earlier Macchi L.1, itself a copy of a captured Austrian Lohner flying boat.
Development
In an attempt to improve the performance of the L.1 flying-boat Macchi, the design was improved with a reduced span on the swept biplane wings and a more powerful 119 kW (160 hp) Isotta-Fraschini V.4B engine. The L.2 was a three-bay unequal-span biplane flying boat with a two-man crew in side-by-side cockpits. It was powered by a single Isotta-Fraschini engine, strut-mounted between the two wings and driving a pusher propeller. It was armed with a single machine gun on a trainable mounting and could also carry four light bombs. Ten L.2s were delivered to the Italian Navy, but they were soon replaced by the newer L.3.
Operators
Specifications (L.2)
Data from The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing. p. 2392.
General characteristics
L2
L2, L2, L02, L II, L.2 or L-2 may be :
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Aircraft
Square-integrable function
In mathematics, a square-integrable function, also called a quadratically integrable function, is a real- or complex-valued measurable function for which the integral of the square of the absolute value is finite. Thus, if
then ƒ is square integrable on the real line 
. One may also speak of quadratic integrability over bounded intervals such as [0, 1].
An equivalent definition is to say that the square of the function itself (rather than of its absolute value) is Lebesgue integrable. For this to be true, the integrals of the positive and negative portions of the real part must both be finite, as well as those for the imaginary part.
Often the term is used not to refer to a specific function, but to a set of functions that are equal almost everywhere.
Properties
The square integrable functions (in the sense mentioned in which a "function" actually means a set of functions that are equal almost everywhere) form an inner product space with inner product given by
where
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