A109S
Joined: Jul 2009
Posts: 1
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From: Italy
AW109S fuel consumption
Mass 3000, 2000ft, OAT 20°C, ECS ON, TAS 130 kts (Max range cruise), Tq 61, 200 kg/h;
Most pilots though cruise at 150 KIAS (155 KTAS), Tq 90, 250 kg/h.
Avoid imitations
Joined: Nov 2000
Aviation Qualifications: ATPL
Posts: 15,110
Likes: 1,083
From: Wandering the FIR and cyberspace often at highly unsociable times
I set approximately 83/83 and see 150kts indicated. Setting 90/90% is very likely to put the aircraft very close to, if not beyond, Vne, especially in turbulence because these aircraft are slippery beasts. The IAS warning is likely to be activated often and each excursion will of course be logged in the DAU memory.
83/83% will use something closer to 230 kg/h.
Joined: Mar 2019
Aviation Qualifications: ATPL
Posts: 252
Likes: 29
From: Europe
From fourteen years of flying nothing but this type, I’d say that most don’t need 90/90% Tq to achieve 150 knots IAS, unless at MAUM.
I set approximately 83/83 and see 150kts indicated. Setting 90/90% is very likely to put the aircraft very close to, if not beyond, Vne, especially in turbulence because these aircraft are slippery beasts. The IAS warning is likely to be activated often and each excursion will of course be logged in the DAU memory.
83/83% will use something closer to 230 kg/h.
I set approximately 83/83 and see 150kts indicated. Setting 90/90% is very likely to put the aircraft very close to, if not beyond, Vne, especially in turbulence because these aircraft are slippery beasts. The IAS warning is likely to be activated often and each excursion will of course be logged in the DAU memory.
83/83% will use something closer to 230 kg/h.
Avoid imitations
Joined: Nov 2000
Aviation Qualifications: ATPL
Posts: 15,110
Likes: 1,083
From: Wandering the FIR and cyberspace often at highly unsociable times
Thread Starter
Joined: Dec 2014
Posts: 384
Likes: 8
From: Out West
Thanks for the input. I have been flying the 109E and before that the 139 so there are many similarities in flying techniques. 230kgs at 83% seems like a good figure to plan on for the 109S. Much appreciated.
