Mark Boyd wrote:

Hmmm...anyone have data about forces provided by the
elevator is flight?=20

For the lift on the tail of an LS7 (standard class), see the last column =
of the table below. In a nutshell, in very slow flight the tail provides =
about 8 kgf (18 pounds) upward force, and at VNE, about 60 kgf (130 =
pounds) downward force.
These numbers are approximate, as the major influence is caused by the =
main wing pitching moment, which I estimated using xfoil and a single =
section approximation of the wing profile.

Francisco de Almeida
"C1" and "7"


IDA [33.3 daN/m2]
=20
Flight param @ min weight
=20
Wing
=20
for "111-1024"
=20
Drag
=20
=20
=20
=20
Horizontal tail
=20
=20
LD
s
Drag IDA
Power
V
=20
Pd
Rewing
CLW
a
CdW
CmW
Cdi
LD
profile
induced
parasite
Drag
s
M
CLH
LH
=20
-
ms-1
N
kW
kmh-1
ms-1
Pa
-
-
deg
-
-
-
-
N
N
N
N
ms-1
Nm
-
N
=20
23.9
0.84
144
2.9
72
20.1
247
921,632
1.346
7.5
0.0200
-0.116
0.0270
26
48
65
9
122
0.76
-279
0.30
78
=20
32.7
0.68
106
2.3
80
22.2
302
1,019,787
1.100
5.3
0.0090
-0.110
0.0180
36
26
53
11
91
0.62
-324
0.21
67
=20
39.7
0.63
87
2.2
90
25.0
383
1,147,260
0.869
3.4
0.0070
-0.105
0.0112
39
26
42
15
82
0.64
-391
0.13
50
=20
41.5
0.67
83
2.3
100
27.8
473
1,274,734
0.704
2.0
0.0059
-0.101
0.0074
41
27
34
18
79
0.68
-464
0.06
32
=20
40.2
0.76
86
2.6
110
30.6
572
1,402,207
0.582
1.0
0.0056
-0.099
0.0050
40
31
28
22
81
0.77
-551
0.02
10
=20
38.3
0.87
90
3.0
120
33.3
681
1,529,680
0.489
0.3
0.0054
-0.097
0.0036
38
36
24
26
85
0.88
-642
-0.02
-13
=20
35.4
1.02
98
3.5
130
36.1
799
1,657,154
0.416
-0.3
0.0051
-0.095
0.0026
36
40
20
30
90
1.01
-738
-0.04
-37
=20
33.0
1.18
105
4.1
140
38.9
926
1,784,627
0.359
-0.8
0.0049
-0.093
0.0019
33
44
17
35
97
1.16
-838
-0.06
-62
=20
30.6
1.36
113
4.7
150
41.7
1063
1,912,100
0.313
-1.2
0.0050
-0.092
0.0015
30
52
15
40
107
1.38
-952
-0.08
-90
=20
28.0
1.59
124
5.5
160
44.4
1210
2,039,574
0.275
-1.5
0.0050
-0.091
0.0011
27
59
13
46
118
1.62
-1071
-0.10
-120
=20
24.9
1.9
139
6.6
170
47.2
1366
2,167,047
0.244
-1.7
0.0053
-0.090
0.0009
24
70
12
52
134
1.95
-1196
-0.11
-151
=20
20.1
2.49
172
8.6
180
50.0
1531
2,294,521
0.217
-2.0
0.0057
-0.089
0.0007
21
84
10
58
153
2.36
-1326
-0.12
-184
=20
17.7
2.98
195
10.3
190
52.8
1706
2,421,994
0.195
-2.2
0.0057
-0.088
0.0006
19
95
9
65
169
2.75
-1461
-0.12
-218
=20

=20
=20
=20
200
55.6
1890
2,549,467
0.176
-2.3
0.0057
-0.088
0.0005
17
106
8
72
186
3.19
-1619
-0.13
-257
=20

=20
=20
=20
210
58.3
2084
2,676,941
0.160
-2.4
0.0075
-0.088
0.0004
14
152
8
79
239
4.31
-1785
-0.14
-298
=20

=20
=20
=20
220
61.1
2287
2,804,414
0.145
-2.6
0.0090
-0.087
0.0003
11
200
7
87
294
5.55
-1936
-0.14
-336
=20

=20
=20
=20
250
69.4
2954
3,186,834
0.113
-2.8
0.0090
-0.086
0.0002
9
259
5
112
376
8.07
-2472
-0.15
-470
=20

=20
=20
=20
270
75.0
3445
3,441,781
0.097
-3.0
0.0089
-0.085
0.0001
7
298
5
131
=20
=20
-2849
-0.16
-565
=20