Tost weak links

Tost weak links in their optimized format combine the following improvements:

  • Longer service life
  • Correct marking with load group and manufacturer’s name
  • Made of high-quality certified aircraft steel
  • Clear distinction from inferior copies
  • Manufacturing tolerance only 5% (in the requirements 10% are stipulated)

Like our type-tested products our weak links are also manufactured according to EASA-approved production methods.
Each batch is tested on computerized test equipment and the results are documented. This guarantees consistent high quality and traceability.

Important Notes

  • Weak links protect your aircraft against overloading
  • Use only the weak link stipulated in your aircraft TCDS or aircraft manual
  • Checking the cable preamble is mandatory according to SBO (German Gliding Operation Regulations); this includes the inspection of weak links
  • Replace the weak link immediately in the case of a visible damage
  • We recommend that the weak link inserts are replaced after 200 starts; an insert exchanged in time is always safer and cheaper than one single aborted launch
  • Always use the protective steel sleeve
  • Use only the correct shackles; they prevent the weak link and the steel sleeve from twisting and hence an undefined increase of the breaking load
  • Never use two equal inserts, e.g. both with round holes, in a reserve system since this would double the breaking load

Warning
Using combinations of weak link inserts from different manufacturers can double the breaking load because of the length change (elongation) of inferior inserts!

 

Tost weak links – examples

weak-links-examples

 

Load table
Winch launch and aero tow

Insert
No.
Colour
Breaking load
daN
Single insert
round hole            P/N
Reserve insert
oval hole                P/N
1
black
1000±100
110101
110121
2
brown
850±85
110102
110122
3
red
750±75
110103
110123
4
blue
600±60
110104
110124
5
white
500±50
110105
110125
6
yellow
400±40
110106
110126
7
green
300±30
110107
110127


Load table
Kites, hang gliders, ultralights

Insert
No.
Colour
Breaking load
daN
Single insert
round hole             P/N
Reserve insert
oval hole              P/N
8
mauve
200±20
110108
110128
9
grey
150±15
110109
110129
14
turquoise
120±12
110114
110134
11
orange
80±10
110111
110131

 

Tow cable and fan assembly

Tow cable + fan ass.

tost-startausruestung