Hearts of Iron IV

Hearts of Iron IV

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Airplane Design Guide [OUTDATED]
By pacenco
Explaining Airplane Designer from BBA
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Information about the guide
Originally posted by Gabi:
Hello! i'm gonna do my best to update the guide if something isn't very good integrated or explained, if i have some gramatical or other mistake please report them in the comments or if you have some suggestions please tell them in the comments thanks!
How to deploy Airplanes?
You can do that by following these photos:
  1. First we need to enter the Strategic Air mode, you can do that by using F3 key or right bottom of the screen


  2. Now, we need to select the airport we want to have the airplanes, after you chose the airport go over the left side of the screen and press the add new airwing



  3. Select the planes you want to add in the airport




  4. Select 'Ok' button and there you go.
What is a Airframe?
The Airframe is how the chassis is for a tank, the base, the source of the plane, on the airframe all the key things for a plane is installated, like the weapon, the bomb bay, the engine or the jet engine.
In BBA we got the:
  • Small Airframe, which could be the CAS or the Fighter ( now you can make only one plane with the CAS mission Interception and Air Superiority Missions but you should choose only one from Air Superiority and Interception )

  • The Medium Airframe Can be Heavy Fighter, Tactical Bomber or Naval Bomber

  • The Large Airframe Can be Strategic Bomber and Naval Bomber




What is the Thrust?
The thrust is how fast can your plane go, this can be changed by engine or other modules by removing them, if your weight is higher than your thrust, then your plane can't take off the airstrip and the design is not good
Example:



In this design i have 65 Thrust and 35 Weight meaning that my plane has a very fast take off and a max speed of 950 km/h (590 miles per hour)
Info about Modules and Missions
Here you can see what missions you can start and what module you need and what type your airplane will be:

Module
Missions Unlocked
Type
2x Light Gun
Air Sup. Intercept
Fighter, Heavy Fighter
4x Light MG
Air Sup. Intercept
Fighter, Heavy Fighter
2x Heavy Gun
Air Sup. Intercept
Fighter, Heavy Fighter
4x Heavy Gun
Air Sup. Intercept
Fighter, Heavy Fighter
Cannon I / II
Air Sup. Intercept
Fighter, Heavy Fighter
2x Cannon I / II
Air Sup. Intercept
Fighter, Heavy Fighter
Rocket Nails
Close Air Support, Logistics Strike
CAS
Bomb Locks
Close Air Support, Logistics Strike, Port Strike
CAS
Small Bomb Bay
Close Air Support, Logistics Strike, Port Strike
CAS
Tank Buster I / II
Close Air Support, Logistics Strike
CAS
Torpedo Mounting
Naval Strike, Port Strike
Naval Bomber/Maritime Patrol Plane
Guided Anti-Ship Missile
Naval Strike, Port Strike
Naval Bomber/Maritime Patrol Plane
Fixed Explosive Charge
Kamikaze Strikes
Suicide Craft
Medium Bomb Bay
Close Air Support, Logistics Strike, Strategic Bombing
Tactical Bomber
Large Bomb Bay
Strategic Bombing. Port Strike
Strategic Bomber



Special Modules
To make the pictures bigger you have to click on the picture then the akamai link






Photos of Special Modules and what they does:
Extra Fuel Tanks:- Devoting more internal space of the airframe for fuel increases the plane's range but it also makes the plane a lot mor flammable




Drop Tanks:-Small, disposable tanks that hold extra fuel give our fighters some extra range when on offensive missions. Since they are dropped before combat, they don't impede combat performance





Armor Plates:-Steel plating behing the pilot seat and around the engine give the plane increased survivability against ground fire attacks from behing





Self Sealing Fuel Tanks:-By adding a layer of specially-treated rubber around the fuel tanks, a hit to the fuel tank does not cripple an airplane as the tank will seal itself over time preventing loss of fuel





Floats:- A seat of floatation devices mounted under the airframe allows the plane to land on water this makes scouting missions for enemy naval assets easier, but also drastically reduces agillity





Dive Brakes:- A set of spoilers along the trailling edge of the wing deploy when the plane enters a dive, reducing the overall speed and allowing the plane to pull out of steep dives without ripping its wings off. This, in tum, allows the plane to attack from a near-vertical dive, drastically increasing accuracy





Non-Strat. Materials Usage:-By substituling specially-treated wood or fabric for aluminium wherever possible, we can drastically reduce the usage of strat. materials. However, wood and fabric don't stand up very well to modern weapons





Flying boat: - Instead of mounting a landing gear, the underside of the plane can be shapen to be able to land on water, this makes scouting missions over water much easier
Research tree and what you should do

This is the new Research tree for airplanes,

These are my recomandations:
    Designs for Airframes 36' - Modern ( 50') |
  • 1936 -


  • Fighters:




  • Close Air Support:




  • Medium / Tactical Bombers:




  • Strategic Bombers:




  • 1940 -

  • Fighters:



  • Close air Support:



  • Medium / Tactical Bombers:


    Not recommended to use as Heavy FIghter
  • Strategic Bombers:




  • 1944 -

  • Fighter -




  • Close air Support :


    You can switch the Cannons with Heavy MG or Light


  • Medium / Tactical Bomber:




  • Strategic Bomber:



    Modern -

  • Fighter:



  • Close air Support



  • Medium / Tactical Bomber:



  • Strategic Bomber:





  • Unspecified date of research -

  • Recon



  • Naval Bomber:
    What i want to say by unspecified date of research is that you can use Guided Anti Ship Missile on a 1936 airframe or modern airframe and the torpedo mounting is the same from 1936 to modern age. this template is made on a 1944 aiframe




    You can change the designs any time you want, these are for example to show you some basic designs
27 Comments
crazy rocker Nov 22, 2022 @ 9:46am 
big prob with plane designer. everytime u make a new model u have to setup a new line for them as the older planes dont upgrade to the newer planes.

If u change production ur airwings wont reinforce when they lose planes. only the curent wings with that model will reinforce.

So bacily ur inter war planes cant be upgraded to newer models without deleting the old wing and building a new wing so u loose air experience. and have to wait till u have 100 planes to build the new wing.
So if u want to keep ur experienced pilots u still have to keep making the old models as wel as the new ones.

Before BBA airwings upgraded to the new planes so u could just switch production.

SO BBA broke the planes part of the game just like tank designer removed the self propelled guns from the game as u can no longer make self propelled guns as no option to design them.
crazy rocker Nov 22, 2022 @ 9:29am 
its easier to just click on the air base as that automatilcy switches to plane mode. Then u just create new air wings for that base from there.

To see what air wings u already have and move them to other airbases or assign them to divs click the air symbol top right of the screen as that shows every plane u have already deployed. No need to use the 1 at the bottom right at anytime really.
AlexanderTheGr8 Oct 18, 2022 @ 6:04pm 
i p much just make a multi role fighter with machine guns and bombs and just spam it
rulleskøjte Oct 15, 2022 @ 8:58am 
Why do you have fighter weapons on your 1940 CAS?
pacenco  [author] Oct 3, 2022 @ 10:31pm 
Only different pictures
VolcanoLight Oct 3, 2022 @ 9:58pm 
Different countries have different airframes right?, as Japan my airframe pictures are different.
pacenco  [author] Oct 3, 2022 @ 12:46pm 
I did the designs for example, i used the dive brakes because some people could change the designs from a fighter to a multi-role fighter or even a cas
PotatKing Oct 3, 2022 @ 12:06pm 
Why are you using dive brakes in the 1940 model fighter?
pacenco  [author] Oct 1, 2022 @ 12:57pm 
guide updated
pacenco  [author] Oct 1, 2022 @ 12:08pm 
ok i will add them right now, thanks for suggestion!