For the 25K Sling Set used with UH-60 and CH-47, is the use of a spacer permitted?

For the 25K Sling Set used with UH-60 and CH-47, is the use of a spacer permitted?

• A. Yes
• B. No
• C. Spacer required
• D. Not applicable

Answer: (B)

Spacers are not allowed with the 25K Sling Set because this sling is designed to attach directly to the load and the aircraft’s attachment points in a specific geometry that keeps the lift stable and within the tested capacity. Introducing a spacer would change the sling’s length and angle, which can shift the load’s center of gravity, reduce effective lifting capacity, and create unstable hover or swing. It can also introduce new contact points that may rub or snag on hardware or aircraft surfaces and interfere with clearance during flight. Because the system is configured and tested to operate without spacers, the approved configuration is no spacer.

Spacers are not allowed with the 25K Sling Set because this sling is designed to attach directly to the load and the aircraft’s attachment points in a specific geometry that keeps the lift stable and within the tested capacity. Introducing a spacer would change the sling’s length and angle, which can shift the load’s center of gravity, reduce effective lifting capacity, and create unstable hover or swing. It can also introduce new contact points that may rub or snag on hardware or aircraft surfaces and interfere with clearance during flight. Because the system is configured and tested to operate without spacers, the approved configuration is no spacer.