The work also includes determination of blade profile and number of blades, blade root

attack angle, blade root chord length, and blade end chord length.

But Director General Oscar Albayalde, chief of the Philippine National Police (PNP), said that the retaliatory

attack angle following the Jolo Catholic church blast that left 21 people dead and more than 100 others injured is just one of the theories that investigators are pursuing.

Thereby, the steering capability of wheelset was decreased and caused a greater

attack angle through the curve negotiating, then the two points contact of the wheel/rail will seriously affecting the running stability of railway vehicle.

In the equation, S is the reference area of the "leader;" [bar.L] is the reference length of the "leader;" m is the mass of the "leader;" [alpha] and [beta] are the

attack angle and sideslip angle, respectively; [[omega].sub.z] and [[omega].sub.y] are the pitch angular velocity and yaw rate, respectively; and [mathematical expression not reproducible] are the disturbance and uncertain disturbance of the various links of the system.

The influences of pitch-to-height ratio, rib height-to-hydraulic diameter ratio, and flow

attack angle on flow and heat transfer were considered for Re = 4000 = 12,000.

where [alpha] is the angle of attack, [w.sub.z] is the angular pitch rate, [[delta].sub.z] is the deflection angle for pitch control, m is the missile mass, Q is the dynamic pressure, S is the aerodynamic reference area, L is the reference length, P is the thrust of the missile, [J.sub.z] is the moment of the inertia about z-axis, [c.sup.[alpha].sub.y] is the lift force derivative with respect to the

attack angle, [mathematical expression not reproducible] represent the pitch moment derivatives with respect to the

attack angle, the non-dimensional angular pitch rate, and the deflection angle for pitch control, respectively.

Existing studies have largely focused on the effect of the

attack angle, tilt angle, rake angle, and clearance angle on the cutting performance of a drum and the influence of the angle setting sequence on the final values of tilt and

attack angles [14].

The effects of parameters, relative baffle gap, baffle height, baffle pitch, and flow

attack angle, were studied.

The

attack angle [alpha] is positive in the upper direction (swing movement), whereas the deflection h is positively measured in the downward direction.

The factors include the velocity,

attack angle, and flight height.

Considering that the actual variation of the inflow direction will not be too large, the aerodynamic characteristics were only measured at the range of wind

attack angle from -45[degrees] to 45[degrees] with an interval of 5[degrees].

Based on the parameters of Table 1 and formula (16), we can calculate the numerical values of [D.sub.Nor] as 0.0016 under 0[degrees]

attack angle, 0.00196 under 15[degrees]

attack angle, 0.00219 under 30[degrees]

attack angle, 0.00226 under 45[degrees]

attack angle, 0.00219 under 60[degrees]

attack angle, and 0.00196 under 75[degrees]

attack angle.