Some interesting comment, opinion and urban myth…..as is often the case.
First off, I don’t have an E90 manual or checklist available nor have I ever flown an E90. Therefore, procedures specific to that airframe may differ from the following
I have however flown many a PT6A powered heavier than air contraption in the last 40 years including many of Mrs. Beech’s products. I have looked through all my various manuals and checklists (C90, C90A/B, C90GT, F90, 200, B200, B200GT, 300 and 350) and all state in the BEFORE TAKEOFF (FINAL ITEMS) checklist, ENGINE ICE PROTECTION……….AS REQUIRED.
This of course is a follow on to the BEFORE START checklist item that says ENGINE ANTI-ICE SWITCHES….ON.
Ma Beech does provide a “CAUTION” note in the AFM that says “The engine anti-ice system should be on for all ground operations to minimize ingestion of ground debris. Turn engine anti-ice off, when required, to maintain oil temperatures within limits”
Take-off performance charts are also provided for both ice vanes extended and ice vanes retracted.
All of the above says what….
- there is no prohibition against taking off or landing with ice vanes extended
- it is advised that ice vanes be extended for all ground ops ( it can be argued that both take-off and landing do have some rather fundamental ground operation aspects to them)
In various ground schools over the years, Beech, FSI, Simuflite and even P&WC have strongly advised to have ice vanes extended for all ground ops including take-off and landing.
Regarding windshield heat, Beech provides the following in their BEFORE TAKEOFF (FINAL ITEMS) checklists: WINDSHIELD ANTI-ICE (if required)……..NORMAL/HI
There is also a “CAUTION” note here that states “The practice of turning the windshield anti-ice on early in the flight is recommended if it is anticipated that it will be required later in the flight after the windshield has been cold-soaked. Activating the windshield anti-ice after the windshield has been cold-soaked may cause the windshield to crack”
Both Beech and PPG have advised that with regards to affording better bird strike protection, all their certification data is done with no windshield heat. I think you will find there are two distinct camps almost equally split with regards to any merit in having a “warm” windshield vs a “cold” windshield when it comes to a bird strike.