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Search: Posts Made By: Feno
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Forum: Tech Log
8th Apr 2013, 21:23
Replies: 17
Views: 9,524
Posted By Feno

Hi, 2.4% is a gross climb gradient the...

Hi,

2.4% is a gross climb gradient the manufacturer has to demonstrate the aeroplane complies with on the 2nd segment. [and provide the conditions under which said compliance is achieved]. This is...
Forum: Tech Log
14th Mar 2013, 13:16
Replies: 2
Views: 1,237
Posted By Feno

The aerodynamic controls respond to dynamic...

The aerodynamic controls respond to dynamic pressure - EAS is a direct measure of dynamic pressure.

Yes ok.
I get it now.
No matter how air density varies, required dynamic pressure remains...
Forum: Tech Log
14th Mar 2013, 01:43
Replies: 2
Views: 1,237
Posted By Feno

Vmc vs OAT

Hello,

Vmc decreases as OAT increases.
I take it that the main governing factor for that is the lower thrust/power delivered by the live powerplant due to the lower air density, hence the lower...
Forum: Tech Log
14th Mar 2013, 00:55
Replies: 37
Views: 20,385
Posted By Feno

Part of the confusion comes from what the rules...

Part of the confusion comes from what the rules are written for.
Agreed

It's quite often a certification vs exploitation confusion.
Another example being the GA approach climb 2.1 % climb...
Forum: Tech Log
13th Mar 2013, 16:22
Replies: 37
Views: 20,385
Posted By Feno

HazelNuts

Thx for clearing that up.
The gross ("actual" as per CS 25.115 terminology) and net notions apply as part of the clearing obstacles process by 35 ft, which is a separate issue from the gross 2.4%...
Forum: Tech Log
13th Mar 2013, 05:10
Replies: 38
Views: 14,255
Posted By Feno

Agreed. More bank applied results in less...

Agreed.

More bank applied results in less yaw needed from the flight mechanics point of view, the automatic consequence of which being a reduced rudder drag.

Surely the 5 deg mark is a good...
Forum: Tech Log
13th Mar 2013, 01:57
Replies: 37
Views: 20,385
Posted By Feno

jmn

2.4% minimum gross gradient; can it be increased?


If I may, 2.4% is the minimum net gradient requirement on the 2nd segment for twin engines.

To answer the question:

Increasing V2 and/or...
Forum: Tech Log
13th Mar 2013, 00:11
Replies: 38
Views: 14,255
Posted By Feno

doubleu-anker

hello,

I take it that you consider spoilers' drag as systematically being greater than rudders' no matter the deflection magnitude of said rudders you may need to center the column ?

Never had...
Showing results 1 to 8 of 8


 
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