"Sparky"

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Name of Harp:
Harp designed by:
Analyzed by:
Date of analysis:

Number of strings:
Pitch Range:
String spacing:
Distance between o/c of high & low strings:
Center strip string hole o/c distance:
Strings enter soundboard at:

Length of c'''' string:
Length of C' string:
Estimated overall height:
Estimated overall depth:

Potential Tension
Assumed max. soundboard bow:
String coordinates based on:

Tuning pin type:
Diam. of tuning pin at string-side neck:
Rotation to tighten (string side):
Height of tuning pin over bridge pin (str. 1):
Height of tuning pin over bridge pin (str. 36):
# Small bdg. pins:
# Large bdg. pins (Wound):
String-bridge pin attack angle:

NOTE:
 


43-String 8/24/99
Dan Cady - HyperHarp
HyperHarp
8/24/99

43
c'''' to C'
.473-.577 (variable)
24.769"
52.7592"
28 deg.

4 1/8"
70"
78"
31"

1409 (massive = very stout neck!)
1.125" @ str 35
Nominal length

Tapered
0.25"
Counter-clockwise
1.25"
1.625"
24
19
15 deg.

As you can see, this is a HUGE harp.  It can be made bigger, but I think the size shown is about at the low limit .  As you can see in the specs below, string 43 falls below T/L of 1.0.  If you have ideas on how to string this note or think the height needs to be increased, then please notify me.

"Megan-15"
"Dani-17"
"Juluka-20"
"Michelle-30"
"Rue Bear-31"
"LSC-36"
"Mariathan-39"
 

43-String "Sparky"
Help!
Str#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
Note
c''''
b*'''
a*'''
g'''
f'''
e*'''
d'''
c'''
b*''
a*''
g''
f''
e*''
d''
c''
b*'
a*'
g'
f'
e*'
d'
c'-m
b*
a*
g
f
e*
d
c
B*
A*
G
F
E*
D
C
B*'
A*'
G'
F'
E*'
D'
C'
Hz
2093.04
1864.64
1661.2
1568
1396.92
1244.52
1174.64
1046.52
932.32
830.6
784
698.46
622.26
587.32
523.26
466.16
415.3
392
349.23
311.13
293.66
261.63
233.08
207.65
196
174.615
155.565
146.83
130.815
116.54
103.825
98
87.3075
77.7825
73.415
65.4075
58.27
51.9125
49
43.65375
38.89125
36.7075
32.70375
Length
4.125
4.4645
4.8377
5.283
5.7684
6.2974
6.8706
7.485
8.1404
8.8395
9.592
10.3872
11.2251
12.1091
13.0555
14.0712
15.1562
16.3363
17.6
18.9373
20.3481
21.8456
23.4318
25.094
26.8573
28.6989
30.6188
32.5966
34.637
36.775
39.0168
41.7331
44.5694
47.527
50.5942
53.7755
56.8972
59.5558
61.9325
64.1242
66.1807
68.132
69.9981
Type Diam
Nyn 25
Nyn 25
Nyn 25
Nyn 25
Nyn 28
Nyn 28
Nyn 28
Nyn 28
Nyn 32
Nyn 32
Nyn 32
Nyn 32
Nyn 36
Nyn 36
Nyn 36
Nyn 40
Nyn 40
Nyn 40
Nyn 45
Nyn 45
Nyn 50
Nyn 50
Nyn 55
Nyn 55
Nyn/Nyn 40/0/10
Nyn/Nyn 45/0/10
Nyn/Nyn 50/0/10
Nyn/Nyn 50/0/13
Nyn/Nyn 50/0/15
Nyn/Nyn 55/0/18
Stl/Cpr 18/4/08
Stl/Cpr 18/4/08
Stl/Cpr 20/4/08
Stl/Cpr 20/4/10
Stl/Cpr 22/4/10
Stl/Cpr 24/4/10
Stl/Cpr 26/4/12
Stl/Cpr 30/4/12
Stl/Cpr 32/4/12
Stl/Cpr 26/4/19
Stl/Cpr 32/4/19
Stl/Cpr 30/4/23
Stl/Cpr 32/4/23
Ten
15
14
13
13
16
15
16
15
18
17
18
17
20
21
19
22
20
21
24
22
28
26
28
26
27
29
31
36
35
40
44
45
46
49
55
54
60
61
64
66
67
72
64
%Max
67
62
58
61
58
55
58
55
51
48
50
47
44
45
42
38
35
37
34
31
32
29
27
24
48
41
35
41
40
38
44
44
36
39
36
30
28
22
20
31
21
26
20
T/L
3.6364
3.1358
2.6872
2.4607
2.7737
2.3819
2.3288
2.004
2.2112
1.9232
1.8766
1.6366
1.7817
1.7342
1.4553
1.5635
1.3196
1.2855
1.3636
1.1617
1.376
1.1902
1.195
1.0361
1.0053
1.0105
1.0124
1.1044
1.0105
1.0877
1.1277
1.0783
1.0321
1.031
1.0871
1.0042
1.0545
1.0242
1.0334
1.0293
1.0124
1.0568
(0.91)
Delta*
0.261
0.2396
0.22
0.2331
0.2791
0.26
0.2748
0.254
0.3164
0.2902
0.3029
0.2749
0.3271
0.3369
0.3017
0.3472
0.3091
0.3169
0.3764
0.3326
0.4401
0.3871
0.4311
0.3743
0.389
0.4197
0.443
0.5278
0.5029
0.5907
0.6673
0.6707
0.6674
0.7208
0.8128
0.7803
0.8881
0.894
0.9263
0.9588
0.9744
1.0678
0.8988

 
SBHole**
0
1.0618
2.1237
3.2855
4.4504
5.6186
6.7868
7.955
9.1274
10.3041
11.4973
12.6904
13.8878
15.0895
16.2911
17.497
18.7072
19.9119
21.1219
22.3373
23.558
24.7839
26.0153
27.2519
28.5578
29.8743
31.2015
32.5404
33.8899
35.2554
36.5762
37.8868
39.1995
40.5187
41.8442
43.1739
44.5122
45.8611
47.2165
48.5824
49.9633
51.357
52.7592
XStr
-4.4753
-3.9768
-3.4783
-2.9329
-2.3859
-1.8375
-1.2891
-0.7406
-0.1902
0.3622
0.9224
1.4825
2.0447
2.6088
3.1729
3.7391
4.3072
4.8728
5.4409
6.0114
6.5845
7.1601
7.7382
8.3187
8.9318
9.5499
10.1729
10.8015
11.4351
12.0761
12.6962
13.3115
13.9278
14.5471
15.1694
15.7936
16.4219
17.0552
17.6915
18.3328
18.9811
19.6354
20.2937
YStrSB
-2.5031
-3.4407
-4.3782
-5.404
-6.4327
-7.4641
-8.4955
-9.527
-10.5622
-11.6012
-12.6546
-13.7081
-14.7654
-15.8264
-16.8874
-17.9521
-19.0206
-20.0843
-21.1527
-22.2258
-23.3036
-24.3861
-25.4733
-26.5652
-27.7182
-28.8806
-30.0524
-31.2346
-32.4262
-33.6319
-34.798
-35.9552
-37.1143
-38.279
-39.4493
-40.6235
-41.8051
-42.9961
-44.1928
-45.3989
-46.6181
-47.8487
-49.0867
YStrTop
1.2232
0.8256
0.4544
0.0782
-0.2688
-0.5831
-0.8618
-1.1083
-1.3257
-1.5113
-1.667
-1.7902
-1.8807
-1.9324
-1.9483
-1.9211
-1.8431
-1.6735
-1.4302
-1.1256
-0.7599
-0.3178
0.1982
0.7692
1.3345
1.9583
2.6433
3.3685
4.1766
5.101
6.1088
7.4258
8.8298
10.3202
11.6083
12.6642
13.4975
14.1804
14.7833
15.3166
15.7867
16.2039
16.5777
XBdgPin
-4.5214
-4.0229
-3.5244
-2.979
-2.432
-1.8836
-1.3352
-0.7868
-0.2363
0.3161
0.8762
1.4364
1.9985
2.5627
3.1268
3.693
4.2611
4.8267
5.3947
5.9653
6.5384
7.114
7.692
8.2726
8.8857
9.5037
10.1268
10.7554
11.389
12.03
12.6501
13.2654
13.8817
14.501
15.1232
15.7475
16.3758
17.0091
17.6454
18.2867
18.935
19.5892
20.2475
XT-Pin
-4.6852
-4.1891
-3.693
-3.15
-2.6054
-2.0594
-1.5134
-0.9673
-0.4193
0.1307
0.6885
1.2462
1.8061
2.3678
2.9295
3.4933
4.059
4.6222
5.1879
5.756
6.3267
6.8999
7.4756
8.0537
8.6644
9.2802
9.9008
10.527
11.1582
11.7968
12.4145
13.0274
13.6413
14.2582
14.8781
15.4999
16.1258
16.7567
17.3907
18.0296
18.6755
19.3274
19.9833
YT-Pin
2.8719
2.2827
1.7273
1.1558
0.6215
0.1279
-0.3214
-0.7295
-1.1004
-1.4313
-1.7234
-1.9727
-2.1831
-2.3512
-2.4569
-2.497
-2.4716
-2.3462
-2.142
-1.8688
-1.5269
-1.103
-0.595
-0.0158
0.6034
1.2915
2.0485
2.8531
3.7108
4.6521
5.7366
7.3047
8.9908
10.7926
12.6984
14.7145
16.6635
18.14
19.329
20.3235
21.1697
21.8994
22.5364
YLvr***
1.3902
0.7731
0.1878
-0.4177
-0.9881
-1.5203
-2.0107
-2.4623
-2.8789
-3.258
-3.6012
-3.9041
-4.1705
-4.3972
-4.5649
-4.671
-4.7154
-4.6653
-4.5409
-4.3518
-4.098
-3.7671
-3.3571
-2.8801
-2.3689
-1.7931
-1.1528
-0.4682
0.266
1.0783
2.028
3.4346
4.9526
6.5794
8.3041
10.1326
11.8974
13.2157
14.2623
15.1249
15.8466
16.4578
16.9811

 

* Delta is a trigometric HyperHarp function involving the force to displace strings at constant angle of approximately 1 degree as a relation of the string mass and diameter.  I use it to choose smoothest transition strings when several types will fulfill T/L limits.
** Lineal measure from high to low note down soundboard
*** Approximate, depending on belly
( ) Note:  the C' string is light.  I need to check some materials for ways to beef it up (8/24/99)

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