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Page 14. November Flite Facts WEIGHT MEASURING SYSTEM (Cont'd) recorder installations. One of the parameters this system monitors is gross weight, and a means for measuring this input is required. An evaluation is beginning promptly on one Boeing 707-131 (Plane 7742) for a weight sensing transducer, associated wiring, and connectors. The service test will indicate system accuracy and durability of axle mounted transducers in airline service. Periodic weight checks will be conducted by Technical Services. FCIB will be on board. -Equipment 707- ADJUSTABLE MARKER - EPR TWA's equipment policy requires as much standardization between associated models as possible. This standardization factor improves day-to-day techniques and contributes towards a more precise operation of various models. Precision in setting take-off thrust has important implications in both performance and economic aspects. All TWA jets, except the 131 and 331 models, presently incorporate indicators with adjustable indices. All models utilize the rolling take-off techniques; however, standardization was comprised without an adjustable EPR index on only two types. TWA had made appropriations available in the amount of $89,847 initially to accomplish the installation of an adjustable EPR target marker and associated digital readout counter. The same instrument will be used on 131 and 331 aircraft and is identical with our present jets. It is proposed to modify both aircraft concurrently. The capital cost on spare unit procurement @$510 per unit is $35,700. Each aircraft installation (4 units) with clamps requires $2,056 for material and $24.50 for labor for 26 aircraft. Spare accessories require an additional $54.00. Additional fringe advantages of this modification are: 1. Reduction of multiple stocking of units and spares. 2. Additional en route fuel of approximately 5000 lbs. by not using the standing take-off. 3. Greater accuracy in trust setting, avoiding engine over boosting. The initial internal work behind the panel will be accomplished during base overhaul cycle and modification program. At first opportunity, and later on receipt of new indicators and clamps, they will be installed on modified aircraft at MCI, JFK, LAX or MKC. The work is scheduled to begin April 1966 and be completed in November 1966. This schedule is predicated on earliest possible unit availability. HATRACK METAL ENCLOSURE To prevent magnetic objects from being placed in the hatrack under the fluxgate transmitter on either side of the aircraft, metal enclosures are being installed that will fill the area. The forward edge of the enclosure will be at the following locations: Aircraft Types All -331B -331 (7668-7672) -331 (7661-7667)* Locations Sta. 662 Sta. 662 Sta. 682*
