May 2, 200521 yr In anticipation of running Dave Schueler's "Send In The Marines" from HNR2003, I am trying to get up to speed on LHA/VSTOL Flight Operations. I am using the AV-8B II data found in the HNR2003 and I would truely appreciate it if someone took a look at my numbers and planning process. Here it goes: Conditions: It is 1200 Local; Sea State 2; Winds 5kts 100 degrees True; Visibility 75%; Two layers of clouds - Intermittent @ 1,000m, 2,000m thick, and Scattered @ 12,000m, 1,000 thick. Intent: From USS TARAWA a section of AV-8B II will take off on a strike mission on a non-descript target 300nm away. The AV-8B II has a cruise range of 965nm and a maximum payload of 6,000kg. I will fly the first 200nm at High Altitude, the next 100nm at Low Alititude (attack run), and return back 300nm to Tarawa at High Altitude. Form 5 1. AV-8B 2. Turbo Fan Engine Type 3. 6,000kg Max Payload 4. 964nm Basic Range (600nm for mission) 5. Strike 6. UnderWing1 3xMk82 500lb GP Bombs @ 241kg each (6x 241= 1,446kg); UnderWing2 1x 300USG Drop Tank (+265nm each); UnderWing3 1x AIM-9L/M @ 85kg each (2x85=170kg). Centerline hardpoint - empty 7. 2,196kg Loadout Weight = LOAD1 Speeds Cruise Full Military Afterburner V/Low 460 (1.9) 580 (2.4) - Med 460 (1.9) 550 (2.3) - High 460 (1.9) 520 (2.2) - Ceiling 15,240m Leg1: Turbo Fan 200nm @ High Alt with LOAD1 = 200/0.8 = 250nm Leg2: Turbo Fan 100nm @ Low Alt with LOAD1 = 100/0.4 = 250nm Leg3: Turbo Fan 300nm @ High Alt CLEAN = 300/1.0 = 300nm Real Range = 800nm 10 minutes of Low Altitude Combat = ((10/60)x460)x3.5 = 273.7nm 800nm + 273.7nm = 1,073.7nm 965nm +265nm+265nm = 1,495nm which is greater than 1,073.7nm by 412.3nm 412nm is 24.8% of 1,495nm so 15% customary reserve is met. Launching Aircraft: Per 3.3.5.4.3 Pad Launch - One Aircraft per Spot, per Three Minute Tactical Turn. If using Engagement Turns, at end of Second Movement Phase, Aircraft is moving into the wind, at 25% max speed, at 100m. Question, if using Tactical Turns are the Harriers moving from a hover/roll to 460kts within that first three minutes and is it abstracted to the point that the Aircraft has travelled the full movement of 23nm (460/20=23nm) from Tarawa on the heading to the target within that first three minutes since liftoff? Thanks, Pete
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