Nacra 500 MK2 Assembly Manual page 61

6.2.
Spinnaker sheet ratchet block on hull
1.
Mount the strap eyes on the hull.
2.
Attach the 57 mm carbo ratchmatic single
spinnakerblocks on the strap eyes on the
hull.
40mm
2x
2x
6.3.
Spinnaker sheet blocks
front crossbar trampoline
1.
Take out the screws plastic screws from the front crossbar.
2.
Mount the eyestraps to the front crossbar using socket head
bolts and nylon washers.
3.
Attach the two carbo 40mm single/swivel blocks to the
eyestraps on both sides located at the front beam.
57mm
2x
2x
2x
2x
2x
61.