06HeliMAN Posted February 14, 2007 Report Share Posted February 14, 2007 I have seen many videos of helicopters being used for external load operations such as installing air conditioners on roofs and so forth. I am sure such operations require a high level of precision. How do these pilots determine wheather or not they are drifting while hovering at say 300ft AGL- I mean like a 5 foot drift? Seems a though so little movement would be hard to judge from ground references at such a high altitude. Quote Link to comment Share on other sites More sharing options...
Reddog Posted February 14, 2007 Report Share Posted February 14, 2007 With the oldest and best precision targeting and ranging instrument ever invented. The Mark 1 Eyeball. Quote Link to comment Share on other sites More sharing options...
67november Posted February 14, 2007 Report Share Posted February 14, 2007 if that doesn't work, then drop 'er in via the norton bomb site :punk: Quote Link to comment Share on other sites More sharing options...
splitpin Posted February 15, 2007 Report Share Posted February 15, 2007 if that doesn't work, then drop 'er in via the norton bomb site :punk: Ah-hem!!--norDon bomb sight. :punk: :punk: :punk: Picky Bast-rd ain't I? :up: :up: Quote Link to comment Share on other sites More sharing options...
koalaa119 Posted February 15, 2007 Report Share Posted February 15, 2007 I have seen many videos of helicopters being used for external load operations such as installing air conditioners on roofs and so forth. I am sure such operations require a high level of precision. How do these pilots determine wheather or not they are drifting while hovering at say 300ft AGL- I mean like a 5 foot drift? Seems a though so little movement would be hard to judge from ground references at such a high altitude. I read a really good article a couple of years back by Denis Venturi on the "Flying the Line" I will see if I can get a scan of it and post it. It was in a copy of the Helicopters Magazine a few years back. cheers. steven Quote Link to comment Share on other sites More sharing options...
kjw57 Posted February 15, 2007 Report Share Posted February 15, 2007 It's OK to drift 5' laterally as long as you "drift" back before you've moved the hook off it's intended course. Quote Link to comment Share on other sites More sharing options...
06HeliMAN Posted February 15, 2007 Author Report Share Posted February 15, 2007 With the oldest and best precision targeting and ranging instrument ever invented. The Mark 1 Eyeball. What is this? Searched Google found nothing. Quote Link to comment Share on other sites More sharing options...
T tail Posted February 15, 2007 Report Share Posted February 15, 2007 Try a precision avionics website, The Mark one has been around for a while...anyone know when the Mark Two is due out ?....I heard Nov 08 TT Quote Link to comment Share on other sites More sharing options...
67november Posted February 15, 2007 Report Share Posted February 15, 2007 here I found one that has the components identified. Quote Link to comment Share on other sites More sharing options...
volition Posted February 16, 2007 Report Share Posted February 16, 2007 Good one N67!! Quote Link to comment Share on other sites More sharing options...
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