a learjet usually has a few pitot-static holes on both sides of the nose on the lower half...do not get those filled with water or wax....and be careful with the angle of attack vanes behind them a bit....depending on which model you are gonna detail.....if its a factory paint job with no metallic stripes on it then it isnt clear coated...but the learjets are covered with putty...so be careful if you come across a patch of exposed putty u dont want to go over it with a d.a. or what not other wise you'll grab the edge of it and start flaking off more putty and paint...usually the learjets are painted with jetglo matterhorn white...which is an enamel paint...very hard...paint thickness is around 4 to 6 mil,,,but then again depending on who painted it,,,if it has metallic stripes...they are clearcoated and the clearcoat is not even half that thickness....if yo9u are gonna do some wet sanding...be careful over the clearcoat u dont wanna eat into the metallics otherwise u have to respray the metallic and blend it in then clearcoat and buff and polish the area...do not wax the forward windshields...they are heated and some waxes actually get a bit sticky when it gets warmed up..use a sealant......normally on the windows around the glass is usually a black,dark brown, or dark gray sealant that does get a bit soft if u go over it with a rotary or a da so use caution over that...its usually about an 1/8'' to 1/4'' wide....have the owner/mechanic go over the aircraft with you and have him show you what to tape off and what he should take off....static wicks on the trailing edges of the controll surfaces/wings/tail. etc,,, if u break one,,,,,its like 300 to 400 bucks a peice...depending on the model...sometimes there is about 8-12 of em on the jet, some have more...some have less......i have worked on learjets/citations and others and i aslo am lead painter for aircraft at my work...when i respray a section...i go over it with 1500 grit 3m wet or dry on a pneumatic sander...respray...resand with 1500 and then buff with 3m rubbing compound on a rotary with a wool pad...glass smooth......nothing more than that is needed with that kind of paint....there is a detailing crew at my work and the types of wax they use is mostly acrylic sealants on the high end big buck planes...those last a fricken long *** time....and believe me.....nothing sticks to that shyte!! i think its called aps 365 made by jetstream....dynamite stuff....in other words...biggest worry are bugs on the leading edges...DONT USE SIMPLE GREEN!!! its corrosive!!...and be careful around any exposed metal from missing patches of putty/paint...those jets usually have a well maintained finish...