thanks guys, regarding the ils at ontario,as i am new to this i hope you can understand this, i get the hsi nav 1 allright and can line up ok, but i don,t get any miles on the rmi to tell me how far i am from the airport only when i call up the tower do i know, also on autopilot i want to know when i am 8mls out to start my desent i fly into los angeles intl [klax]7L with no trouble ,am i making sense? anyway thanks for the help and i will try easynav, regards dodger uk.

Did you know that today is your lucky day? I live about 1 mile south of KONT (Ontario International) and have flown into there many times. :) Im not sure about the FS end of the ILS system at ONT but I can give you the real ILS stuff, just in case you wanted to know.[h2]Runway 8L/26R[/h2]Dimensions: 12198 x 150 ft. / 3718 x 46 m Surface: asphalt/concrete/grooved, in good condition Weight limitations: Single wheel: 30000 lbs Double wheel: 200000 lbs Double tandem: 560000 lbs Dual double tandem: 850000 lbs Runway edge lights: high intensity [h2]RUNWAY 8L RUNWAY 26R[/h2] Latitude: 34-03.41263N 34-03.41358N Longitude: 117-37.36860W 117-34.95323W Elevation: 943.3 ft. 931.9 ft. Traffic pattern: left right Runway heading: 076 magnetic, 090 true 256 magnetic, 270 true Displaced threshold: 998 ft. no Markings: precision, in good condition precision, in good condition Visual slope indicator: 4-light PAPI on left (3.00 degrees glide path) RVR equipment: touchdown Approach lights: MALSR: 1,400 foot medium intensity approach lighting system with runway alignment indicator lights MALSR: 1,400 foot medium intensity approach lighting system with runway alignment indicator lights Runway end identifier lights: no no Touchdown point: yes, no lights yes, no lights Instrument approach: ILS ILS/DME Obstructions: 20 ft. rr, 600 ft. from runway, 250 ft. right of centerline, 20:1 slope to clearAPCH RATIO 50:1 TO DSPLCD THR. 40 ft. pole, 2050 ft. from runway, 400 ft. right of centerline, 46:1 slope to clear [h2]Runway 8R/26L[/h2]Dimensions: 10200 x 150 ft. / 3109 x 46 m Surface: concrete/grooved, in good condition Weight limitations: Single wheel: 30000 lbs Double wheel: 200000 lbs Double tandem: 560000 lbs Dual double tandem: 850000 lbs Runway edge lights: high intensity [h2]RUNWAY 8R RUNWAY 26L [/h2]Latitude: 34-03.29745N 34-03.29818N Longitude: 117-36.97350W 117-34.95313W Elevation: 936.2 ft. 926.4 ft. Traffic pattern: right left Runway heading: 076 magnetic, 090 true 256 magnetic, 270 true Markings: precision, in good condition precision, in good condition RVR equipment: touchdown, midfield, rollout touchdown, midfield, rollout Approach lights: ALSF2: standard 2,400 foot high intensity approach lighting system with centerline sequenced flashers (category II or III) Runway end identifier lights: no no Centerline lights: yes yes Touchdown point: yes, no lights yes, lighted Instrument approach: ILS/DME Obstructions: none 40 ft. pole, 2050 ft. from runway, 400 ft. left of centerline, 46:1 slope to clear Now this is for the ILS aproaches and stuff for RWY8 (is it 7 in FS?).[h3]ONTARIO, CAINSTRUMENT APPROACH TO RUNWAY 08LAPPROACH AIDS INFORMATION AS PUBLISHED ON 23 JANUARY 2003[/h3]ILS (CAT. I) RWY 08LApproach bearing Magnetic bearing: 076 True bearing: 090 Magnetic variation: 14ELocalizer information Type: LOC Frequency: 109.70 MHz Identification code: I-AOD .. .- --- -.. Antenna location: 34-03-24.819N / 117-34-45.837W Course width: 3.30 degreesGlide slope information Type: STANDARD GLIDE SLOPE Glide slope angle: 3.00 degrees Antenna location: 34-03-29.268N / 117-37-02.163W -1683 ft. in from approach end of runway 08LRunway elevation at GS: 941.90 ft. MSLNo outer marker/locator navaidMiddle marker information Type: MIDDLE MARKER BEACON ONLY Location: 34-03-25.802N / 117-37-51.548W 0.4 nm (2474 ft.) from the approach end of runway 08LNo inner marker navaidI hope this all helps you in some way, have a great day!! :)

Which runway are you using?8L does not have DME. See here http://www.airnav.com/airport/KONT

Right, not all ILS beams have DME equipment. You have to use some other tool (is there a VOR/DME on the field?) or estimate. As far as knowing when to descend, if it is a full ILS you should be following the glide slope 'dot' anyway, so you don't need to "judge" when to start your descent.