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Guest CRJ700FO

CAT C and D aircraft weights?

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I searched for this info, because I thought someone had posted it...What determines if an aircraft is CAT A, CAT B, CAT C, CAT D?Is it empty weight? If so, what are those weights?RhettAMD 3700+ (@2585 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2gb Corsair XMS 3-3-3-8 (1T), WD 150 gig 10000rpm Raptor, WD 250gig 7200rpm SATA2, Seagate 120gb 5400 rpm external HD, CoolerMaster Praetorian

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>I searched for this info, because I thought someone had>posted it...>>What determines if an aircraft is CAT A, CAT B, CAT C, CAT D?>>Is it empty weight? If so, what are those weights?no it is aircraft final approach speeds.from 5-4-7 of the Aeronautical Information Manual (AIM)5-4-7. Instrument Approach Proceduresa. Aircraft approach category means a grouping of aircraft based on a speed of VREF, if specified, or if VREF is not specified, 1.3 VSO at the maximum certified landing weight. VREF, VSO, and the maximum certified landing weight are those values as established for the aircraft by the certification authority of the country of registry. A pilot must use the minima corresponding to the category determined during certification or higher. Helicopters may use Category A minima. If it is necessary to operate at a speed in excess of the upper limit of the speed range for an aircraft's category, the minimums for the higher category must be used. For example, an airplane which fits into Category B, but is circling to land at a speed of 145 knots, must use the approach Category D minimums. As an additional example, a Category A airplane (or helicopter) which is operating at 130 knots on a straight-in approach must use the approach Category C minimums. See the following category limits:1. Category A: Speed less than 91 knots.2. Category B: Speed 91 knots or more but less than 121 knots.3. Category C: Speed 121 knots or more but less than 141 knots.4. Category D: Speed 141 knots or more but less than 166 knots.5. Category E: Speed 166 knots or more.NOTE-VREF in the above definition refers to the speed used in establishing the approved landing distance under the airworthiness regulations constituting the type certification basis of the airplane, regardless of whether that speed for a particular airplane is 1.3 VSO, 1.23 VSR, or some higher speed required for airplane controllability. This speed, at the maximum certificated landing weight, determines the lowest applicable approach category for all approaches regardless of actual landing weight.

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Thank you CRJ!!!That makes sense because the approach I am looking at uses a different plate for C/D aircraft vs. A/B. The C/D planes get to make wider turns over a larger area.RhettAMD 3700+ (@2585 mhz), eVGA 7800GT 256 (Guru3D 93.71), ASUS A8N-E, PC Power 510 SLI, 2gb Corsair XMS 3-3-3-8 (1T), WD 150 gig 10000rpm Raptor, WD 250gig 7200rpm SATA2, Seagate 120gb 5400 rpm external HD, CoolerMaster Praetorian

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>Thank you CRJ!!!>>That makes sense because the approach I am looking at uses a>different plate for C/D aircraft vs. A/B. The C/D planes get>to make wider turns over a larger area.not only the mins are affected but the area around the airport with which to circle is wider for higher category aircraft.

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