Bob G. 4 Posted February 2, 2015 Share Posted February 2, 2015 After takeoff in the DHC-6 Twin Otter what is the proper power and propeller reduction sequence and why? Is it reduce propeller RPM first and then engine power or is it reduce engine power first and then propeller RPM? On landing what is the sequence? Thanks Link to comment Share on other sites More sharing options...
Finn 873 Posted February 2, 2015 Share Posted February 2, 2015 It depends... Since Torque will increase as You reduce prop RPM, You need to alow for this increase in torque, before reducing Prop RPM Often You don´t need full power for the take off, so in that instance You can simply let the power levers where they are, and reduce prop RPM, monitoring that Your torque stay within limits. If You take off with full allowable power setting (torque), then You will need to reduce power before reducing prop RPM. During descend, simply keep cruise prop RPM setting. Before reaching MDA/DH (Minimum descend altitude or Decision height) increase prop RPM to full inorder to prepare for an eventual go-around. Finn Link to comment Share on other sites More sharing options...
Bob G. 4 Posted February 2, 2015 Author Share Posted February 2, 2015 Thanks for the answer Finn, that helps a lot. Bob Link to comment Share on other sites More sharing options...
Capt. Crash 14 Posted April 25, 2015 Share Posted April 25, 2015 Bob, See this post about the procedures we use in the aircraft.http://forum.aerosoft.com/index.php?/topic/91246-climb-data-and-cruise-power-tables/#entry674234 //Crash Link to comment Share on other sites More sharing options...
Finn 873 Posted April 25, 2015 Share Posted April 25, 2015 Thanks for Your great input Crash ! Very interesting Finn Link to comment Share on other sites More sharing options...
Capt. Crash 14 Posted April 26, 2015 Share Posted April 26, 2015 Always glad to help. I have a checkride coming up next month so I like answering questions since it forces me back to the book! Link to comment Share on other sites More sharing options...
John2 196 Posted April 26, 2015 Share Posted April 26, 2015 I love this aircraft. So much fun to fly. And I love the fact that it continues to be improved with hotfixes. Link to comment Share on other sites More sharing options...
Bob G. 4 Posted May 1, 2015 Author Share Posted May 1, 2015 Hi Capt. Crash, Thanks so much for the info, best I have seen on the subject. Bob G. Link to comment Share on other sites More sharing options...
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