Pacific Scientific T5-8008-306-00 Cable Tensiometer

The Pacific Scientific T5-8008-306-00 is the British/CWT dual-calibration model in the T5-8008 sub-series — calibrated for high-tension primary flight control cable tension measurement from 40 to 600 lbs on British CWT cable sizes 10, 15, and 25 CWT, while simultaneously cross-reading on the equivalent standard inch sizes (1/8", 5/32", and 3/16"). Built on the T5-8008 Ref B platform (~1 lb / 0.45 kg), it uses two calibration cards: T596-106 for standard inch readings and T596-306 for CWT readings — both included with every unit — with consistent 20 lb reading intervals throughout the full 40–600 lb range.

High-Range CWT Dual-Calibration on the Ref B Platform

The T5-8008-306-00 delivers the 40–600 lb high-range tension coverage of the T5-8008-106-00 with the addition of CWT British calibration for the mid-CWT cable size range — 10, 15, and 25 CWT — that maps to the 1/8"–3/16" standard inch group at these tension levels. For maintenance programs standardized on the T5-8008 sub-series that service both British-spec CWT and American-spec inch cable systems on the same aircraft or in the same facility, the T5-8008-306-00 provides that dual capability on the same Ref B platform without requiring a separate instrument. Select T596-306 when measuring CWT British cables and T596-106 when measuring standard inch cables — both cards cover the same 40–600 lb range with the same 20 lb reading intervals and the same riser set. The riser configuration is Riser #2 for 10 and 15 CWT cables (1/8" and 5/32" inch equivalents) and Riser #2C for 25 CWT cables (3/16" inch equivalent). Always confirm riser selection against the appropriate calibration card before taking any measurement. Zero temperature error means the instrument is accurate from -53°C to 71°C without any preliminary adjustments.

Dual-Calibration for British CWT and Standard Inch

• 40–600 lb range — high-tension primary cable coverage on the Ref B platform
• CWT cable sizes: 10, 15, and 25 CWT — mid-CWT range covering British primary control cables in the high-tension zone
• Standard inch cross-read: 1/8", 5/32", 3/16" — full dual-purpose coverage on the same instrument
• Two calibration cards — T596-106 (standard inch) and T596-306 (CWT); both included
• 20 lb reading intervals — finest consistent interval in the T5-8000 series at this tension level
• Riser #2 for 10/15 CWT (1/8", 5/32"); Riser #2C for 25 CWT (3/16")
• T5-8008 Ref B platform — ~1 lb / 0.45 kg; same platform as T5-8008-106-00
• Zero temperature error — calibration-stable from -53°C to 71°C, no adjustment required
• Pointer lock brake lever — retains reading before removal in confined or low-visibility areas
• No batteries or electronics — fully mechanical, always ready

Technical Specifications

• Tension Range: 40 – 600 lbs (all supported cable sizes)
• CWT Cable Sizes (Low): 10, 15 CWT
• CWT Cable Sizes (Mid/High): 25 CWT
• CWT Range: 10 CWT through 25 CWT
• Standard Inch Cross-Read (Low): 1/8", 5/32"
• Standard Inch Cross-Read (Mid): 3/16"
• Riser — 10, 15 CWT (1/8", 5/32"): Riser #2
• Riser — 25 CWT (3/16"): Riser #2C
• Reading Interval: 20 lbs throughout 40–600 lb range
• Calibration Type: Dual — British CWT & Standard Inch
• Calibration Cards: T596-106 (standard inch) & T596-306 (CWT); both included
• Series Platform: T5-8008 Ref B (~1 lb / 0.45 kg)
• Operating Temperature: -53°C to 71°C
• Temperature Stability: Zero temperature error
• Pointer Lock: Yes — brake lever rod
• Origin: Made in the USA
• Warranty: 1 year on new units

Typical Applications

• High-tension primary cable measurement on British-origin aircraft with 10–25 CWT cables at 40–600 lbs
• British military and Commonwealth programs requiring high-range CWT coverage on the T5-8008 platform
• Multinational MRO facilities servicing both British-spec CWT and American-spec inch cable systems at high tensions
• Programs standardized on the T5-8008 sub-series requiring dual CWT and inch calibration
• Post-repair and return-to-service verification on high-tension British-specification mid-CWT cable systems

Pacific Scientific T5-8008-306-00 Calibration

The T5-8008-306-00 should be recalibrated on a scheduled basis — annually at minimum, and immediately following any overload event, mechanical shock, or drop. As a dual-calibration instrument used on primary flight control cables at the 40–600 lb high-tension range across both British CWT and standard inch specifications, maintaining calibration accuracy across both profiles is essential to airworthiness compliance on every aircraft type it serves. Pilot John International operates an ISO 17025-accredited calibration laboratory capable of recalibrating Pacific Scientific T5-8008 series tensiometers — including dual-calibration CWT models — to original manufacturer specifications, issuing a fully traceable calibration certificate upon completion. Whether your maintenance program operates under FAA oversight, UK CAA requirements, a DOD contract, or an ISO 9001 quality management system, PJi's lab delivers the traceability and documentation your compliance requirements demand. Learn more about PJi's ISO 17025 Calibration Services →