# pitch ratio

## pitch ratio

The ratio of the geometric pitch or another specified pitch of a propeller to the diameter of the propeller. It is expressed as a mathematical proportion, as in 1.4 to 1.
Mentioned in ?
References in periodicals archive ?
They also concluded that the optimums of the relative baffle gap distance, relative baffle gap width, baffle height ratio, baffle pitch ratio, and flow attack angle are around 0.67, 1, 0.5, 1.5, and 60[degrees], respectively.
Only Newcastle striker Papiss Cisse had a better top flight goals per minutes on the pitch ratio than the ex-Everton man.
The design incorporates a fixed pitch ratio of 4 to I , so the ladder is always at the optimal angle.
Such an analysis can contribute significantly to the investigation of how the pitch ratio and roughness element geometries would affect the flow pattern and consequently the heat transfer coefficient.
In this paper, row number of longitudinal tubes [N.sub.l], row number of transverse tubes [N.sub.t], longitudinal tube pitch ratio [X.sub.l], transverse tube pitch ratio [X.sub.t], and tube outside diameter [D.sub.o] were taken as optimization parameters, as shown in Table 1.
This test vehicle has an interconnect aspect ratio (height/diameter) of 8 and pitch ratio (height/pitch) of 1.7.
[X.sub.l] = [P.sub.l]/[D.sub.o], longitudinal tube pitch ratio
But earlier in the campaign he made an instant impact, scoring three times and earning the curious statistic of having a better goals per minutes on the pitch ratio than every top-flight striker apart from Papiss Cisse.
Weaver and Abd-Rabbo [6] had performed visualisation study of in-line tube bundle with pitch ratio 1.5.
We used attic trusses with an 8:12 pitch ratio for the upstairs to provide extra living space.
In this manner the geometry parameters (diameter D and pitch ratio P/D) of the optimum propeller for each case have been calculated, as well as thrust T.
During his descent at approximately 30 degrees nose low and 450 knots, the master caution light illuminated with a roll ratio and pitch ratio light and the sluggish flight controls.

Site: Follow: Share:
Open / Close