SBS-Resources has hold patterns for:
Abbot, Alderney, Alkin, Antee, Astra, Bel, Ben, Bewli, Bexil, Bia, big, BNN, Bombo, Brasog, Brasol, Bri, Cam, Car, Cards, CDF, Cedar, Chase, CL, CT, Daley, DAYNE, DTY, EDNG, EDNL, EME, EMW, Ermin, FNY, Foyle, Fyner, GLG, GOW, GST, Guernsey, GWC, HB, holds.txt, Holly Willo, Hong, Honl, I-RW, I-RY, IOM, Jersey, JW(NDB), Kelly, KW, Lam, lanak, Lapra, LBA, LCY, Liverpool, Logan, Lorel, Luton, LYDG, LYDL, Magee, Maple, MAY, MIRSI, MOODY, MTN, New(NDB), NH, NWI, OCK, OF114, OF274, OLIVE, onHAW046, onHAW143, OY, PIK, POKER, POMPI, PY, ROSUN, SAM, SAY, SHARK, SMF, SPEAR, STIRA, STN, SUM, TD, TIGER, TIMBA, TRN, TWEED, UW, VANIN, WCOG, WCOL, WZ
Download from
http://www.sbs-resources.com/ and install. The hold patterns are in C:\SBS-resources\Files\Holds
An example looks like this:
{HOLD-IOM}
$TYPE=14
54.0669+-4.7636
54.0564+-4.8344
54.0564+-4.8344
54.0533+-4.8453
54.0533+-4.8453
54.0478+-4.8528
54.0478+-4.8528
54.0406+-4.8528
54.0406+-4.8528
54.0344+-4.8489
54.0344+-4.8489
54.0306+-4.8383
54.0306+-4.8383
54.0303+-4.8247
54.0303+-4.8247
54.0392+-4.7539
54.0392+-4.7539
54.0419+-4.7433
54.0419+-4.7433
54.0475+-4.7364
54.0475+-4.7364
54.0547+-4.7353
54.0547+-4.7353
54.0606+-4.7394
54.0606+-4.7394
54.0644+-4.75
54.0644+-4.75
54.0669+-4.7636
-1
54.0333+-4.8
54.0436+-4.7872
54.0333+-4.8
54.0269+-4.7819
-1