Mod or not? I am trying to fix 4 rocket engines under that big orange tank

[MockKnizzle]

Perhaps your issues with quad/tricouplers are because of a different operating system?

[Claw]

Since we have hijacked this thread, here are the results of my testing using intakes on a quad connector. I combined all the intakes on one test airplane because I wanted the flight conditions for each set of intakes to be as similar as possible. The only difference in flight conditions is in how long it took me to activate the action groups.

The quad adapter is flipped around and connected to an FL-T100 fuel tank. Each symmetric set of intakes is on an action group. I took off with the two inboard intakes and the nose intake open. After climbing up a ways, I closed the nose intake and just flew off the two inboard.

During the flight above 20km, I periodically toggled all the sets of intakes, only running two intakes at a time, and continued a steady climb.

Once the engine flamed out, I opened four intakes (two on each side) on the quad adapters. The engine started back up.

I then toggled on the inboard intakes, and turned off one pair of intakes on the quad. The engine still ran.

Once the engine flamed out again, I opened all six intakes (three on each side) on the quad adapters. The engine started back up.

I opened the two inboard intakes (one on each side) and closed the six intakes on the quad adapters. The engine quit.

I repeated this experiment, replacing the TurboJet with a RAPIER. I removed all oxidizer to make sure it was completely obvious when the engine shut down. The results were the same.

This isn't to say there is not a case where the quad adapter isn't bugged, but it seems to work with this setup. Maybe this was previously done in v.22?

[thereaverofdarkness]

You have to use cubic octagonal struts or docking ports. I like to use docking ports because they look a lot less unrealistic.

[Streetwind]

Now those are some proper airscoops!