#2001086
“Chun an maolú cliathánach a ríomh agus cothromóid (2.7.40) á húsáid (i gcás ina dtomhaistear β i bplána ceartingearach), moltar ruthag eitilte cothrom sínte a úsáid. Sainítear ruthag eitilte cothrom sínte sa phlána ceartingearach trí S1S2 leis an gclaonfhad ingearach céanna dp ón mbreathnadóir.
‘To calculate the lateral attenuation using equation (2.7.40) (where β is measured in a vertical plane), an extended level flight path is recommended. An extended level flight path is defined in the vertical plane through S1S2 and with the same perpendicular slant distance dp from the observer. This is visualised by rotating the triangle ORS, and its attached flight path about OR (see Figure 2.7p) through angle γ thus forming the triangle ORS’.