Flap settings on takeoff? - Page 2 - ED Forums
 


Notices

Reply
 
Thread Tools Display Modes
Old 01-06-2019, 11:21 PM   #11
Ala13_ManOWar
Senior Member
 
Ala13_ManOWar's Avatar
 
Join Date: Apr 2010
Location: Spain
Posts: 1,393
Default

Quote:
Originally Posted by Nealius View Post
I find it confusing that, normally when extending flaps I get a pitch down moment, but when I take off with flaps down, 2 degrees nose down trim, and neutral stick I get massive pitch up once the wheels leave the ground.
That's because of ATA setting, the higher you use the more torque forces you encounter, the lower your speed the worst those torque effects are and the harder to control she is. Give a try with different TO setting and you'll be surprised.

With regard to the OT I never use flaps to TO in the 109 (or 190, or Spit, or Ponny unless external stores), as somebody already said she's willing enough to get airborne making any extra aid useless or even a drawback. But of course that's using 1.2-3 ATA, the time I forgot to watch it and go higher I have a bad time taking off until I realise my mistake. Also manual pitch to 11.30 (as recommended by some modern warbird pilots) is a quite pleasant setting and more than enough to get airborne in a few seconds with a quite predictable torque, once in the air auto goes fine. With flaps everything is worst, they can be used but unnecessary for my taste.

S!
__________________
"I went into the British Army believing that if you want peace you must prepare for war. I believe now that if you prepare for war, you get war." -- Major-General Frederick B. Maurice
Ala13_ManOWar is offline   Reply With Quote
Old 01-07-2019, 11:16 AM   #12
MAD-MM
Member
 
MAD-MM's Avatar
 
Join Date: Jul 2014
Location: Germany
Posts: 946
Default

20 Degree Flaps setting works Pretty good, because with full Fuel Tank the Center of Gravity is moves backwards in the 109, that makes the sudden nose Pitch up in the 109 on Take off.
With Flaps down it wil shift Foward, makes smooth Take off even with full Power and Nose heavy Trim of 1.
Why should this a Drawback?
__________________
Once you have tasted Flight, you will forever walk the Earth with your Eyes turned Skyward.


9./JG27
MAD-MM is offline   Reply With Quote
Old 01-07-2019, 01:57 PM   #13
Nealius
Senior Member
 
Join Date: Feb 2013
Location: Tokyo
Posts: 2,590
Default

Just tried with 60% fuel, no flaps, nose down trim of 2, 1.2~1.25 ATA. Super smooth. I still had to tap the right brake a few times until the rudder took over at around ~50km/h or so.
__________________
YouTube Channel: "Clutch"

ASUS Z170 | i5-7600 | GTX1050Ti | 16GB DDR4 | Windows 10

Last edited by Nealius; 01-07-2019 at 02:42 PM.
Nealius is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT. The time now is 03:04 AM. vBulletin Skin by ForumMonkeys. Powered by vBulletin®.
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.