WELLINGTON III, X, XI, XII, XIII AND XIV
PILOT'S NOTES
January 1944.
(iii) Hercules VI, XVI and XVII fuel consumptions:
(a) The approximate total consumptions in RICH mixture art as follows:
Boost
lb./sq.in R.p.m. Galls./hr.
+8 2,900 320
+6 2,4OO 239
(b) The approximate total consumptions (galls./hr.) in WEAK mixture are as follows:
M ratio at 5,000 ft. |
Boost lb/sq.in. |
2,400 R.p.m. |
2,200 R.p.m |
2,000 R.p.m |
1,800 R.p.m |
+2 |
118 |
110 |
102 |
94 |
0 |
106 |
98 |
92 |
80 |
-2 |
94 |
88 |
82 |
74 |
-4 |
84 |
80 |
74 |
68 |
S ratio at 15,000 ft. |
Boost lb/sq.in. |
2,400 R.p.m. |
2,200 R.p.m |
2,000 R.p.m |
1,800 R.p.m |
+2 |
116 |
110 |
106 |
96 |
0 |
104 |
100 |
96 |
88 |
-2 |
94 |
90 |
86 |
80 |
-4 |
86 |
82 |
78 |
- |
For every 1,000 ft. above heights quoted add ½ gall./hr.
For every 1,000 ft. below theights quoted deduct ½ gall./hr.
• For Hercules XVII engines these figures should be increased by five.
61. Static vent speeds
The following table shows the various handling speeds in m.p.h. and equivalent knots for aircraft with the A.S.I, connected to the static vent:
|
M.p.h. |
Knots |
Take-off speed (minimum) |
95 |
85 |
Safety speed—no flaps |
135 |
120 |
Safety speed—200 fla |
125 |
110 |
Climbing speed (initial |
140 |
145 |
Flying at low airspeeds (200 flap) |
135 |
120 |
Stalling speeds: |
At 28,500 1b.—all up |
85-90 |
75-80 |
At 28,500 Ib.—all down |
70-80 |
60-705 |
At 34,500 1b.—all up |
95-100 |
85-90 |
At 34,500 Ib.—all down |
80-90 |
70-80 |
Circuit speeds: |
Before lowering flaps |
150 |
130 |
After lowering flaps |
130 |
115 |
Approach speeds: |
At 26,000 1b.—engine assisted |
95 |
85 |
At 26,000 Ib.—glide |
110 |
95 |
At 26,000 lb.—flapless-engine assisted |
115 |
100 |
At 29,000 Ib.—engine assisted |
100 |
90 |
At 29,000 Ib.—glide |
115 |
100 |
At 29,000 lb.—flapless-engine assisted |
120 |
105 |
Mislanding |
100 |
90 |
Beam approach - initial |
140 |
120 |
Beam approach - final |
110-115 |
95-100 |
Maximum speeds: |
Diving |
310 |
270 |
Leight light lowered |
230 |
200 |
Undercarriage down |
150 |
130 |
Flaps down to Т.О. position |
150 |
130 |
Flaps fully down |
130 |
115 |
Landing lamp lowered |
110 |
95 |
Economical flying: |
Climbing |
140 |
125 |
Climbing |
140 |
125 |
Cruising (Medium and high altitudes) |
Fully loaded |
160 |
140 |
Lightly loaded |
150 |
130 |
Cruising (Low altitudes) |
Max. range |
165 |
145 |
Max. endurance |
150-155 |
130-135 |
Engine failure during take-off |
125 |
110 |
Single engine flight |
130-135 |
115-120 |
Fuel jettisoning: |
Flaps up |
110 |
95 |
Flaps down 20° |
135 |
120 |
Flaps fully down |
90 |
80 |
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