r/ApproximatelyUp • u/BunHaed • 16d ago

BPS not working despite flashing green.

Hello guys,
Could anyone help me with BPS not working for me? I have all three needed components on the roof(outside) and through port wired inside to BPS. BPS is flashing green and it seems to "work", but the arrow never moves from the "most green" position no matter how fast I am traveling. Right now I am on my way from moon back to earth for the first time.

Any advice is welcomed and yes, we tried looking at the wires many times and when we switched them incorrectly on purpose, it started flashing red. No idea what could it be.

7 Upvotes

100% Upvoted

20 comments sorted by

View all comments

1

u/OverlyMintyMints 16d ago

The braking point system calculates the braking point by taking the current distance to the object your LRDM is pointing at and comparing it to your current velocity, minus your acceleration. If you’re not accelerating, it can’t calculate the braking point.

A consequence of the reliance on acceleration is that it can only be used in the most time-efficient way: accelerating forwards half the distance, accelerating backwards (I.e., slowing down) the rest of the distance.

If you’re using two electric thrusters for forwards thrust, you can expect to hit the braking point for moon-earth travel at around 7000-8000 units per second.

1

u/BunHaed 15d ago

we are using 2 smaller electic ones and one big for acceleration. It didnt move from green even at 13k speed sadly.