iniBuilds Development Update 3, Electrics and FMOD

Luke Phillips
Saturday, March 21, 2020

iniBuilds has released their 3rd development update over on the “iniDev” section of their website. Today’s update concerns the Electrics system implemented on the A300 along with a short preview of the FMOD sounds.

Not included in the update, was any mention of the development group’s A380, a highly anticipated aircraft in the community.

The update opened with a very brief statement acknowledging the situation regarding COVID-19 (Coronavirus).

It read:

We hope everyone is staying safe during this unprecedented time.

iniBuilds then went on say that the aircraft had been under initial testing since the last update, with extensive progress happening in terms of development.

Continuing on in the update was the main talking point, the electrical systems. The team went on to say that the update would give an insight into the system depth.

The developers wrote:

“[...]The A300-600R aircraft type has quite an interesting and unique ELEC system being a hybrid between early A320s and the older A300-B4 models.

Referencing to the leftmost image, iniBuilds continued:

“[...]We are looking at the ELEC DC page and in this current configuration you can see that all 3 batteries are connected to the DC essential bus; this state is present in multiple configurations. What we have in this situation, is the APU master switch selected in ‘ON’ mode, ready for an APU start. The 3 batteries are connected as they assist quite heavily with the APU start itself. Please note how all the voltages and amps you see are not the same. They change in real time based on electrical load from the system and other factors all replicating the aircraft documentation and real-life operational sequence.

Then, moving onto talking about the central image, the developers wrote:

You can see in this configuration the NORM BUS and ESS BUS are no longer connected; due to the system being powered by an alternative source other than the external power, so they disconnect. Now why is battery 2 connected and charging you might ask? Well when the system detects that the battery voltage is lower than the permitted threshold it gets connected to the DC ESS BUS and charged with the correct amperage level to bring the voltage back in line.

Finally, moving on to the rightmost image, the explanation concluded:

The last system page preview we have is the ELEC AC page. Things to point out here are the fact we’ve modelled IDG oil temperature, based on quite a few factors. For example, if we look at ‘IDG 2’; where the engine is off; this temperature then depends on the outside air temperature at the time plus a thermal oil retention factor. If we compare this to IDG1, where the engine is running, we can see this is dependent on the ELEC system load. To add, please note all voltages and HZs present, all vary in real time along with GEN loading.

The devs indicated that they would like this level of system depth present throughout the whole aircraft.

The update concluded with a video previewing the FMOD sounds included with the aircraft. The sounds are to feature “dynamic sound balancing based on environmental conditions” and recordings from the real-life aircraft.

To read the full development for yourself, you can head to the iniBuilds website.

Threshold will ensure to cover all future updates regarding the aircraft, to stay updated with all Threshold news, join the Threshold Discord server.

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