Carrier take off

[emibat]

Hi guys,

 

in standard airdrome I use full throttle for the takeoff, to have the AB.

In carrier AB doesn't start. It's necessary use finger lifts twice.

Is it normal?

 

 

(I use Thrustmaster Warthog)

 

bye

 

 

Emi

[dburne]

Just push throttles to full, carrier take off is no problem.

[emibat]

Thanks dburne, but it's a bug or what else?

 

Same start-up procedure but different engine propulsion? :huh:

[Agrrregat]

Hi,

 

I have the same, AB is only available after useing finger lift. There was answer somewhere on the forum that this finger lift is a kind of protection to not use AB on the carrier without cover behind the plane.

On the ground everything is ok and AB is working without this.

 

Cheers,

A.

[emibat]

ok, sounds good!

[emibat]

Looking some videos, I see that not all t/o from carrier use AB. (probably depending from the weight).

Others use AB but only while catapult is running.

[ouPhrontis]

I have it from a former F-18 driver that no finger-lift is necessary to go to reheat through mil stop, it's apparently a bump, rather than a hard-stop.

[Ryno1217]

Just an FYI if you want to use AB on the carrier.

 

Hold number 9 and number 0 (not keypad numbers. The ones close to the backspace key) to raise finger lifts while advancing the throttles to use AB on the carrier.

[lobo]

Clear as mud...

[Brun]

From the NATOPS (I-2-4):

On the ground, an afterburner lockout system helps guard against inadvertent afterburner selection. With weight on the wheels and launch bar extended or the arresting hook DOWN, the afterburner lockout extends and the finger lifts must be raised or a force of approximately 32 pounds must be applied before the throttles can be moved to MAX.

 

So the finger lifts aren't strictly necessary if you apply enough force. However, 32lbs (15kg) sounds like a lot to push forward with your left arm.

 

Think I'll assign a pair of DX buttons to the finger lifts and have them turn on when I move the throttles forward. Much hassle avoided.

Edited June 4, 2018 by Brun

[emibat]

"8.2.7 Catapult Afterburner Operation. Permissible catapult launch power settings depend on aircraft gross weight. At gross weights of 45,000 lbs and above, afterburner catapult shots are required. At gross weights of 44,000 lbs and below, three options are provided, allowing pilots to tailor the power settings to their needs. Military power launches minimize the impact of sustained afterburner operation on the ship’s jet blast deflectors (JBDs) and reduce fuel consumption. Afterburner catapults improve aircraft sink-off-bow performance and single engine flyaway performance in case of an emergency. Stabilizing in Military power while in catapult tension and selecting afterburner (MIL/MAX setting) at holdback release provides a compromise between single engine climb capability, fuel consumption and JBD compatibility. Performing a MIL to MAX afterburner transient results in only a small reduction of engine stall margin. If afterburner thrust is to be selected during the catapult stroke, advance throttles to MAX immediately following catapult holdback release. This maximizes the available time for the engines to stabilize prior to the end of the catapult stroke. The catapult settings for a MIL/ MAX shot are identical to a MIL power shot, so there is no need for pilots to communicate their intention to exercise the MIL/MAX option to the catapult crew."

[Wags]

From the NATOPS (I-2-4):

 

 

So the finger lifts aren't strictly necessary if you apply enough force. However, 32lbs (15kg) sounds like a lot to push forward with your left arm.

 

Think I'll assign a pair of DX buttons to the finger lifts and have them turn on when I move the throttles forward. Much hassle avoided.

 

Correct. We are looking finger lift operation as an option for later.