For usual locomotive practice

v » v_b » v₁ » 1.9 m³ kg^-1

L/D » 2 ; F₁/F » 7; F_b/F » 7; W/W_b » 3.5; W₁/W » 0.43; W/W_b » 1.5

(Dynamic pressure at throat)/(dynamic pressure at bell mouth(gas)) » 2.25

(Dynamic pressure at throat)/(dynamic pressure at blast pipe) » 0.185

Recovery in diffuser = 75% of dynamic pressure at throat

d₁/d_f » 2.65 (d_f = equivalent diameter of the 4 nozzles)

d_f/d₁ » 0.38 ; (F₀+F)/F » 8; d_b/d₁ » 1.07 (d_b = diameter of the bell mouth)

d_f/d_b » 0.35; d_b/d_f » 2.8;

(Height of mixing chamber/diameter of mixing chamber) » 2.5

(Chimney outlet diameter)/(Throat diameter) » 2; Diffuser included angle £ 12°

(Draught at tuyère plane)/(smokebox draught) » 1.4

Specific heat of steam » 0.47 cal kg^-1 K^-1; Specific heat of gas » 0.27 cal kg^-1 K^-1; Specific heat of steam/gas mixture » 0.34 cal kg^-1 K^-1

Steam-gas mixture temperature = 0.5(steam temp. + gas temp.)