"Juluka"

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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 a''' string:
Length of c'-m string:
Estimated overall height:
Estimated overall depth:

Appx. Total 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. 30):
# Small bdg. pins:
# Large bdg. pins (All Wound):
String-bridge pin attack angle:
 


20-String "Juluka"
Dan Cady - HyperHarp
HyperHarp
8/24/99

20
a''' to c'-m
.472-.554 (variable)
10.368"
18.0758"
35 deg.

5
25 5/8"
34"
16"

493 pounds
.612"
Nominal

Tapered
0.25"
Counter-clockwise
1.25"
1.625"
20
0
8/15/99

"Megan-15"
"Dani-17"
"Michelle-30"
"Rue Bear-31"
"LSC-36"
"Mariahthan-39"
"Sparky-43"
 

Juluka's 20-String...

Help!


Str#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Note
a'''
g'''
f'''
e'''
d'''
c'''
b''
a''
g''
f''
e''
d''
c''
b'
a'
g'
f'
e'
d'
c'-m
Hz
1760
1568
1396.92
1318.52
1174.64
1046.52
987.76
880
784
698.46
659.26
587.32
523.26
493.88
440
392
349.23
329.63
293.66
261.63
Length
5
5.535
6.1098
6.7245
7.3789
8.0731
8.8134
9.6111
10.5461
11.5443
12.6055
13.734
14.9305
16.1911
17.5156
18.986
20.5335
22.153
23.8446
25.6236
Type Diam
Nyn 25
Nyn 25
Nyn 25
Nyn 28
Nyn 28
Nyn 28
Nyn 32
Nyn 32
Nyn 32
Nyn 32
Nyn 36
Nyn 36
Nyn 36
Nyn 36
Nyn 40
Nyn 40
Nyn 40
Nyn 50
Nyn 50
Nyn 50
Ten
15
15
14
19
18
18
24
23
22
21
28
26
25
26
30
28
26
42
38
35
%Max
69
67
65
70
67
64
68
64
61
58
62
58
54
57
53
49
46
48
44
40
T/L
3
2.71
2.2914
2.8255
2.4394
2.2296
2.7231
2.3931
2.0861
1.8191
2.2213
1.8931
1.6744
1.6058
1.7128
1.4748
1.2662
1.8959
1.5937
1.3659
Delta*
0.7009
0.6733
0.6416
0.8881
0.8367
0.7815
1.1138
1.035
0.972
0.9053
1.2538
1.1578
1.0603
1.1038
1.2791
1.1594
1.0396
1.8248
1.6341
1.4502
SBHole**
0
0.8669
1.7337
2.6032
3.4753
4.3474
5.223
6.1021
7.0622
8.0223
8.986
9.9531
10.9202
11.8873
12.8579
13.8928
14.9276
15.9712
17.0235
18.0758
XStr
-0.8158
-0.3186
0.1786
0.6773
1.1775
1.6777
2.18
2.6842
3.2349
3.7856
4.3383
4.893
5.4477
6.0025
6.5592
7.1527
7.7463
8.3449
8.9485
9.552
YStrSB
-4.9445
-5.6545
-6.3646
-7.0769
-7.7913
-8.5056
-9.2229
-9.943
-10.7295
-11.516
-12.3053
-13.0975
-13.8898
-14.682
-15.477
-16.3247
-17.1725
-18.0273
-18.8893
-19.7513
YStrTop
0.0555
-0.1195
-0.2548
-0.3524
-0.4124
-0.4325
-0.4095
-0.3319
-0.1834
0.0283
0.3002
0.6365
1.0407
1.5091
2.0386
2.6613
3.361
4.1257
4.9553
5.8723
XBdgPin
-0.862
-0.3647
0.1325
0.6312
1.1314
1.6316
2.1338
2.638
3.1888
3.7395
4.2922
4.8469
5.4016
5.9563
6.513
7.1066
7.7002
8.2988
8.9023
9.5059
XT-Pin
-1.0257
-0.5338
-0.0419
0.4515
0.9464
1.4413
1.9383
2.4372
2.9827
3.5281
4.0755
4.6249
5.1743
5.7238
6.2752
6.8634
7.4517
8.0451
8.6434
9.2416
YT-Pin
1.3055
1.1502
1.0346
0.9568
0.9166
0.9161
0.9589
1.0563
1.2245
1.456
1.7475
2.1036
2.5276
3.0157
3.5649
4.2073
4.9268
5.7112
6.5606
7.4973
YLvr***
-0.2252
-0.4303
-0.5979
-0.7299
-0.8267
-0.8858
-0.9043
-0.8715
-0.7755
-0.6199
-0.4076
-0.1347
0.2024
0.6
1.0551
1.5952
2.2081
2.8818
3.6165
4.4336

* Delta is a trigometric HyperHarp function involving the force to displace strings at constant angle of approximately 1 degree as a relations to 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 the face of soundboard
*** Approximate, depending on belly

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