mrjpc130h Posted May 24, 2020 Share Posted May 24, 2020 cheers up hercs expert...im seeking a guidance on doing touch n go with fuel in external tank, does it ok or not? if not what structure will be affected since in AFM as image below to preclude landing in fuel in external ,anyting with fuel sloshing? pls help me... Quote Link to comment Share on other sites More sharing options...
mrjpc130h Posted June 3, 2020 Author Share Posted June 3, 2020 pls assist me... Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted June 4, 2020 Share Posted June 4, 2020 There are multiple references to touch and go operations with fuel in the external tanks. Check your Normal procedures section for guidance. Some places it says to land "with little, if any, usable fuel in the external tanks" and other places it says "Crossfeed from... external tanks may be done during… touch and go landings" Not really a yes it is OK or a NO it is NOT OK, to do touch and goes with external tank fuel and crossfeed operations but your sink rate is limited to 300 FPM at touchdown any time there is more than 500LBS in the external tank. Less than 500 LBS is considered empty and the tank should not be used for crossfeed as pressure will probably not be maintained as the fuel level is too low to maintain pump pick up with the changing pitch angles. Do you have fuselage tanks installed? If so you cannot have usable fuel in the external tanks with the fuselage tank not full (20,000LBS+) 1 Quote Link to comment Share on other sites More sharing options...
mrjpc130h Posted June 5, 2020 Author Share Posted June 5, 2020 (edited) tqvm sir..much appreciated.. and we don't have the fuselage tank Edited June 5, 2020 by mrjpc130h Quote Link to comment Share on other sites More sharing options...
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