SME NOTEs Slide 75 has changed. The VOR approach at Simmons AAF no longer exists. It depicted dual VOR minima. Henderson, NV has an IAP that depicts dual vor minima. 12/18/12 – add a ceiling to TLH slide 12 - corrected page no. of INOP chart on slide 68. Weather Flight Planning.
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SME NOTEs Slide 75 has changed. The VOR approach at Simmons AAF no longer exists. It depicted dual VOR minima. Henderson, NV has an IAP that depicts dual vor minima. 12/18/12 – add a ceiling to TLH slide 12 - corrected page no. of INOP chart on slide 68
Weather Flight Planning • This will be an interactive exercise. You will need the following items on your desk. • TLA Vol’s 14 & 19 (or TPP) • IFR S • AR 95-1, Chapter 5 • FIH • E6B Flight Computer TD 68
Terminal LearningObjective Determine Weather Flight Planning Minimums.
E L O A Determine weather briefing sources for flight planning purposes.
WEATHER BRIEFING AR 95-1, para 5-2. c. (7) 1. Weather information will be obtained from a U.S. Military Weather Facility. 2. Weather forecast will be void 1hr 30min after weather briefing time if aircraft has not departed. 3. The crew should update weather briefing information on STOPOVER flights.
Sources of Weather Briefings Per FIH, page C-2 1. Face to Face U.S. Military Forecaster 2. Operational Weather Squadron (OWS) Telephonic (Refer to FIH) Closed Circuit Television 3. Flight Service Station (FSS) When use is authorized by local procedures. Telephone 1-800-WXBRIEF Remote Communication Outlet
Sources of Weather Briefings • Fort Rucker Weather Station at Cairns. • http://www.rucker.army.mil/6weather/avwx.htm • Aviation Weather • http://aviationweather.gov/adds/
If requesting a military telephonic weather brief provide the following info 2 hours in advance: • Name of person calling • Aircraft type and call sign • VFR or IFR and proposed altitude • Departure point and time (ETD) • Route of flight • Destination and ETA • Alternate and ETA, if required
DD Form 175-1 Flight Weather Briefing
The DD Form 175-1 has 5 sections: • Take off data • En Route and Mission data • Aerodrome Forecasts (TAF) • Comments / Remarks • Briefing Record
TH67 / 2741 23-Oct-14 OZR / 1300 A167 - TSTMS Entire LFA 020 - 080 020) 24010 +25 030) 24018 +23 040) 25020/+21 050) 26025/+19 060) 26025/+17 070)27030/+15 080) 29040/+13 2 X X X BR 150 LFA 006 LFA 400 LFA X X X X X X X X SFC - 050 LFA VCTY TS LFA LFA
X LFA X X X X X ½ RAFG FEW 010 OVC 015 TEMPO 1400 1800 SFC 060 - 080 LFA LFA VCTY TS OZR 1200 1800 22010G157 SCT 020 BKN 030 29.90 DHN 1200 1800 21010 7 BKN 025 OVC 100 29.98 TOI 1200 180026010 7 SCT 030 BKN 100 29.96 MGM 1200 1800 270107 BKN 030 OVC100 29.87 TLH 1200 1800 24010G18 1 ½ RA BKN 015 OVC 025 29.87 AM (1200 - 1800) 1200 W.G. 1330
E L O B Determine weather minima.
Summary of Requirements Do I meet requirements to takeoff? Do I meet requirements to file to my destination? Do I need an alternate airport for my destination? Does my alternate selection qualify?
Departure Procedures AR 95-1, para. 5-3 1. Current weather conditions at time of departure will be used to determine if departure minimums are met.
Departure Procedures AR 95-1, para. 5-3 2. Aviator flying the aircraft at Take-Off determines take-off minima which are: Logged 50 hours or more actual WX time as PIC…. 0 cig – 0 vis • Logged less than 50 hr actual WX time as • PIC…. 100 cig – ¼ vis or 1200 ft RVR
Current Departure Weather Conditions may be obtained through any of the following when departing Controlled Airports: • ATIS • Ground Control • AWOS or ASOS • Control Tower
Departure Procedures AR 95-1, para. 5-3 • All aviators will comply with published nonstandard IFR take off minimums and departure procedures published in FLIP.
NON STANDARD TAKE OFF PROCEDURES How do you determine if Non Standard Take off procedures are applicable to your departure aerodrome? Look in the TLA. Let’s go there now. Vol 14. Table of Contents
Refer to the TLA to determine if Non-Standard Take off procedures apply. Vol 14, pg III. TABLE of CONTENTS XXIV • Determine if IFR take off Minima is Non-Standard for Birmingham, AL • Non-standard T/O minima does exist at Birmingham, on pg. XXIV
Vol 14 Another method to determine if an airport has Non-Standard Take-off procedures is look for a symbol in the Pilot Briefing Section of any IAP At your departure airfield. T T If there is a symbol you must refer to the TAKE OFF procedures listed in the front of this FLIP for specifics. Let’s go there now. Pg. XXIV
What are T/O minimums if you are departing from RWY 6 at Birmingham? You must have at least 300 – 1 ¾ with min climb of 282 ft/NM to 1800. UNLESS ..*.. Or std if your climb gradient is at least 421 ft per NM to 1800. If your gradient is at least 421 ft/nm then your take off minima is STD, which is: 100 - 1/4 or 0 – 0. Let’s review E6B procedures on how to convert feet per nm to feet per min.
G/S: 80kt Gradient: 421 f/nm Use E6B to compute Rate of Climb, given Gradient and Ground Speed 2. Locate 421 f/nm on inner ring 1. Set speed index at 80 GS • Determine FPM. It’s on the outer ring opposite 421 f/nm . • 560 FPM
What are T/O minimums if departing from RWY 24? There is no non-standard T/O minimums published for RWY 24 therefore T/O minimums are 100-1/4 or 0-0. Note there is a published minimum altitude before making turns. 2200 feet.
Destination PlanningAR 95-1, para 5-2. c. (5) Destination weather must be forecast to be equal or greater than the published weather planning minimums for the approach procedure to be flown at ETA through 1 hour after ETA.
Destination Planning (95-1) 1. Use Weather Forecast (TAF) 2. Predominant Weather will apply 3. Published Weather Planning Minimums. (___). Cig & vis a. Helicopters may reduce Destination and Alternate CAT A visibility minimums by 50% but not less than ¼ mile. b. Visibility reduction of COPTER approaches is not authorized. c. Visibility reduction of approaches labeled “Visibility Reduction N/A” is not authorized. 4. Adjust planning minima for INOP components 5. Forecast Valid Times (ETA plus 1 hour) 6. Area Forecast (Use when there is no TAF available)
What is meant by the terms: Published Weather Planning Minimums Weather Planning Minimums Planning Minimums as used in AR 95-1?
This is the ceiling (CIG) and Visibility figures listed in the Minima Section of the TLA Chart in parentheses under the applicable Aircraft Approach Category. • Example: ( 200 – ½ )
If this is the IAP selected for our Destination what is the Weather Planning Minimums for the Straight-in ILS RWY 6 approach? DESTINATION WEATHER PLANNING Selected Approach Helicopters can reduce vis if not prohibited by the IAP. Determine helicopter Planning Minimums for Cat A Planning Minimums is 200 – ¼ for this S - ILS 6 IAP 1/4
If this is the IAP selected for our Destination what is our Weather Planning Minimums for the Straight-in LOC RWY 6 approach? DESTINATION WEATHER PLANNING Selected approach Planning Minima for this S - LOC 6 IAP is 500 – 1/4 Helicopters can reduce visibility if not Prohibited by the IAP. 1/4
If this is the IAP selected for our Destination what is the Weather Planning Minimums for the Straight-in VOR RWY 18 approach? Correct Answer: Need at least 500 CIG ½ sm vis at ETA + 1 Hr to file IFR to this procedure. ½ Vol 14
If this is the IAP selected for our Destination what is the Planning Minimums for the COPTER VOR 336 approach? Answer: 400 CIG ½ sm Vis You cannot reduce visibility on COPTER approaches! Vol 14
You cannot reduce visibility if there is a restriction in the PILOT BRIEFING section or the PLAN VIEW of the IAP
When is an Alternate Airfield Required? AR 95-1, para 5-2. e. When the answer is yes to any of these questions. 1. Is Radar Required for the approach procedure? 2. Are the Approach Navaids Unmonitored? 3. Is forecast Predominant Weather @ ETA + 1 hr Less Than: • Ceiling, 400 Feet Above Planning Minimum • Visibility, 1 Mile greater than Planning Minimum VFR Exception – Alternate is not required if descent from minimum en route altitude for IFR operation, approach, and landing can be made in VFR conditions.
What is the minimum Weather that would not require an Alternate when filing to the S-ILS RWY 10 approach at MGM? ¼ +400 -1 600 – 1 ¼ or higher required at ETA Plus 1 hour to not need an Alternate Vol 14
What do the terms, Minimum Altitude for IFR Operations or Minimum IFR Altitude (MIA), include? • These terms may include any of the following: • MEA, while on an airway • MOCA, while on an airway within 22nm of the NAVAID • Published Feeder Route Altitude • IAP segment minimum altitude • MEA as determined by the Pilot when on a “Direct” Route using VFR Sectional.
IFR Alternate Planning. VFR Exception Rule. Determine minimum Ceiling for VFR conditions when applying the VFR exception rule. 3000 3000 V-70 V-70 • Required information: • MIA (min IFR altitude) • Airport elevation • Required VFR cloud clearance Airport Elevation 250 ft
IFR Alternate Planning. VFR Exception Rule. Determine minimum Ceiling for VFR conditions when applying the VFR exception rule. 3000 V-70 MIA (MEA in this example) 3000 Subtract airport elevation -250 2750 Add VFR cloud clearance, (below) +500 3250 Round up to next 100 feet. 3300. This is the minimum ceiling necessary to have VFR conditions at your MIA. Airport Elevation 250 ft
IFR Alternate Planning. VFR Exception Rule. Determine minimum Ceiling for VFR conditions when applying the VFR exception rule. 3000 V-70 3300 CIG – 3 sm would be required at this airport to meet ceiling and visibility requirements that would result in VFR conditions at the MIA. Airport Elevation 250 ft
Alternate required MEMORY AIDMWR M. unMonitorednavaid W. Weather less than 400-1 above planning minima R. Radar required
Let’s now determine if a selected IAP qualifies for use as an Alternate when an Alternate is required.