Alternate route

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Alternate route

Author	Message
Igor De Ruitz	Igor De Ruitz posted 6/9/2021 7:32:24 PM Topic Details Share Topic
Group: Forum Members Posts: 1, Visits: 0	Hi, It's only a couple of months I'm using SD, but I cannot find a way to set a route to my alternate. When I set an airport as alternate, SD draws a single line from the destination to the alternate, no way to set waypoints on it. Am I missing something? Thanks
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Replies
grahamb	grahamb posted 6/30/2021 6:17:12 AM Post Details Share Post
Group: Forum Members Posts: 606, Visits: 29K	+x andrew62 - 6/29/2021 6:24:03 PM thanks grahamb, but no documentation in preflight prep and fuelcalc…. I don''t understand. When you use the 'Land Here' option on an intermediate waypoint, SD immediatley breaks the whole route into two routes, with flight conditions, start time, fuel plan, weight and balance etc controllable independently; it just happens that they are both presented on the chart concurrently with the 'inactive' segment dulled. It is saved as one route though. The problem with alternates as far as detailed planning is concerned is that SD, and you, don't know when you may have to divert. From halfway along your planned route? From just before you arrive at destination? What about diverting to an airfield you hadn't pre-planned as the alternate? After a hold, instrument approach procedure and a low go around and where you also may need a hold and instrument approach at the alernate? SD therefore takes the simple approach, which is that by nominating an alternate, you get the airport details, frequencies etc in your plan/plog, and the basic direct route shown. To try and second guess all the circumstances that might prevail when a diversion is required would be impossible, so it leaves it to the pilot to use the features provided as best they can for their situation on the day.
	Reply Like 4
andrew62	a andrew62 posted 6/30/2021 9:18:03 AM Post Details Share Post
a Group: Forum Members Posts: 4, Visits: 3	+x grahamb - 6/30/2021 6:17:12 AM +x andrew62 - 6/29/2021 6:24:03 PM thanks grahamb, but no documentation in preflight prep and fuelcalc…. I don''t understand. When you use the 'Land Here' option on an intermediate waypoint, SD immediatley breaks the whole route into two routes, with flight conditions, start time, fuel plan, weight and balance etc controllable independently; it just happens that they are both presented on the chart concurrently with the 'inactive' segment dulled. It is saved as one route though. The problem with alternates as far as detailed planning is concerned is that SD, and you, don't know when you may have to divert. From halfway along your planned route? From just before you arrive at destination? What about diverting to an airfield you hadn't pre-planned as the alternate? After a hold, instrument approach procedure and a low go around and where you also may need a hold and instrument approach at the alernate? SD therefore takes the simple approach, which is that by nominating an alternate, you get the airport details, frequencies etc in your plan/plog, and the basic direct route shown. To try and second guess all the circumstances that might prevail when a diversion is required would be impossible, so it leaves it to the pilot to use the features provided as best they can for their situation on the day. I´m quite certain you dont understand what I mean.... It´s about the legal requirement for preflight preparation. What you´re doing inflight is another story, but before getting airborne your planning has to cover the planned route to the destination and also a realistic trajectory to the alternate. SD suggests in this case 0,2 ltr and 1 Minute, actually it would be 11 minutes and 2 ltr. Again, I´m not arguing for the ACTUAL flight and inflight considerations, I´m arguing for PREFLIGHT conditions and legal requirements. If it´s not possible to have this feature (be it route to alternate or manual distance) in future in SD I can live with it, but if SD wants to cover all aspects of preflightplanning ..... Cheers Andy
	Reply Like 6