Pseudo ILS

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Pseudo ILS

Author	Message
pilot-byom	p pilot-byom posted 1/31/2021 5:11:18 PM Post Details Share Post
p Group: Forum Members Posts: 323, Visits: 388	Skydemon pseudo-ILS does take the airfield reference point from AIP - which may be neither at a threshold nor even close enough to the runway in use, see i.e. EGDM when approaching runway 35 the 'aiming point' is 0.8nm West of the runway or EDXR 0.2nm East of the main asphalt runway. Be aware - if you start looking out from 500ft you may not see a runway ... My opinion: as long as you don't manually input the threshold coordinates from AIP this carries the potential to be a dangerous gimmick if shit hits the fan. Skydemon is a VFR tool by these reasons and it may even not hold until the edge of marginal VFR ... Edited 1/31/2021 7:35:03 PM by pilot-byom
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grahamb	grahamb posted 1/31/2021 2:42:17 PM Post Details Share Post
Group: Forum Members Posts: 590, Visits: 28K	Given that Pseudo ILS disables the glideslope at 500’ agl, why does it matter? What about offset ILS, does it cope with that? It is not a substitute for a proper instrument procedure with the proper equipment, be it ILS or GNSS, and trying to use it like one is folly. SD is a VFR tool. IMHO of course. Edited 1/31/2021 2:53:18 PM by grahamb
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Sky Painter	Sky Painter posted 1/31/2021 2:27:59 PM Post Details Share Post
Group: Forum Members Posts: 627, Visits: 15K	+x mustang - 1/31/2021 12:28:04 PM Hi, SD pseudo ILS works with the runway threshold coordinates,giving a 50ft too low 3° vertical trajectory. As we pass over runway threshold at 50ft,the touch-down point is 300 meters ahead,at the approximative place we see tire marks on concrete runways.Abeam the glide path antenna. Is-it not conceivable to make guidance towards the touch-down point coordinates in place of threshold ones? I stand to be corrected, but I understand that both vertical and horizontal guidance is by reference to the published airfield reference point, which is often about mid-field. Mike _________________________________________ Samsung Galaxy Tab A8 – Android 11.0 & SD 4.1.1.0 Huawei P30 – Android 11.0 & SD 4.1.1.0 PC – Windows 10 (Home Ed) Version 22H2, Build 19045.6216, SD 4.1.1.102
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mustang	m mustang posted 1/31/2021 12:28:04 PM HOT Topic Details Share Topic
m Group: Forum Members Posts: 4, Visits: 3	Hi, SD pseudo ILS works with the runway threshold coordinates,giving a 50ft too low 3° vertical trajectory. As we pass over runway threshold at 50ft,the touch-down point is 300 meters ahead,at the approximative place we see tire marks on concrete runways.Abeam the glide path antenna. Is-it not conceivable to make guidance towards the touch-down point coordinates in place of threshold ones?
	Reply Like 4