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[Turn] on Engines?

switchngcswitchngc Member Posts: 0 Arc User
edited August 2012 in Federation Discussion
What does the [Turn] ability actually do?

I bought a Hyper-Impulse Engines Mk XI [Full] [Spd] [Turn] just to test it out. It says "+19.2 Flight Turn Rate". Is that +19.2 % or +19.2 degrees per second, or something else entirely? In addition, when I get into Sol System on my Armitage it changes to "+23.8 Flight Turn Rate" where my Aegis Hyper-Impulse Engines also say "+23.8 Flight Turn Rate" (as does my Borg Engines) and neither have a [Turn] modifier. However, with my Borg Engines on I have a turn rate of 28.1 deg/sec, Aegis drops me to 27.5 deg/sec which is the same for my engine with the [Turn] modifier.

Nothing seems to make sense with the [Turn] modifier.
Post edited by switchngc on

Comments

  • thoroonthoroon Member Posts: 409 Arc User
    edited August 2012
    It is rather complicated,
    [turn] adds Flight Turn Rate (see below).
    Every flavour of Engines has a "base" Flight Turn Rate. So, while you compare engines of same flavour, [turn] makes a difference, while two different flavours may look the same (with one having [turn]).

    This is the info I have from mmoguides:
    Ship turn rates in STO are measured in degrees per second, and appear to be determined as follows:

    Base + TM x (1 + TB /100 + Stat / TMod + APow / 100) + ETB

    Base is the base turn rate. All ships currently appear to have a base turn rate of 3 degrees/sec with no engine equipped (again, presumably this comes from thrusters build into the hull).

    TM is the Turn Modifier of the ship type, which is the Turn Rate listed on on the information terminals in the room above the Shipyard on Earth Spacedock (where you go to buy new ships and to trade Exploration Badges for ship weapons and equipment) minus 3.

    For example, the Turn Rate listed for the T2 Escort is 16, so its Turn Modifier is 16 ? 3 = 13. The Turn Rate listed for the T4 Exploration Cruiser is 5, so its Turn Modifier is 5 ? 3 = 2.

    TB is the total Turn Bonus from any items, abilities or other modifiers that provide a percentage bonus to turn rate.

    For example, a Tactical captain with a +25% turn rate console activates Attack Pattern Alpha II for another +65%, giving a total Turn Bonus of 25 + 65 = 90.

    Stat is the total Stat Bonus from the captain?s skills and any modifiers. Note that the Federation Tier 1 Light Cruiser counts as a cruiser, and so is affected by the Tier 2 Cruiser Captain skill.

    TMod is the Tier Modifier of the ship:

    Tier 1 and 2 ships have a Tier Modifier of 200
    Tier 3+ ships have a Tier Modifier of 400

    (As with Impulse Speed, the purpose of the Tier Modifier would appear to be to normalise the maximum bonus to turn rate across the tiers ? Tier 1 and 2 ships are only affected by two Captain skills, with a maximum stat bonus of 48, while Tier 3+ ships are affected by three Captain skills, with a maximum stat bonus of 100. Hence, the different modifiers result in a maximum bonus of 24% for Tier 1 and 2 ships and 25% for Tier 3+ ships.)

    APow is the current Auxiliary Power level of the ship.

    ETB is the Engine Turn Bonus (see Engines and Turning, below)

    Some examples:

    Captain A is commanding a Tier 2 Escort (listed Turn Rate of 16, so Turn Modifier of 13), has Starship Command-7 and Escort Captain-7, for a total Stat Bonus of 45, and a current auxiliary power level of 50. He is using a common engine with no turn bonus. His turn rate will be:

    3 + 13 x (1+ 0 / 100 + 45 /200 + 50 / 100) + 0

    = 3 + 13 x 1.725

    = 25.4 degrees/sec

    If he activates Attack Pattern Alpha II for a +65% turn rate bonus, his turn rate will be:

    3 + 13 x (1+ 65 / 100 + 45 /200 + 50 / 100) + 0

    = 3 + 13 x 2.375

    = 33.9 degrees/sec

    Captain B is commanding a Tier 4 Exploration Cruiser (listed Turn Rate of 5, so Turn Modifier of 2) equipped with an rare engine with a 0.2 turn bonus, has Starship Command-7, Cruiser Captain-7 and Exploration Cruiser Captain-5, for a total Stat Bonus of 81, and a current auxiliary power level of 75. His turn rate will be:

    3 + 2 x (1+ 0 / 100 + 81 /400 + 75 / 100) + 0.2

    = 3 + 2 x 1.9525 + 0.2

    = 7.1 degrees/sec
    [SIGPIC][/SIGPIC]
  • switchngcswitchngc Member Posts: 0 Arc User
    edited August 2012
    thoroon wrote: »
    It is rather complicated,
    [turn] adds Flight Turn Rate (see below).
    Every flavour of Engines has a "base" Flight Turn Rate. So, while you compare engines of same flavour, [turn] makes a difference, while two different flavours may look the same (with one having [turn]).

    This is the info I have from mmoguides:

    But the test I did above, the only change in the test was the engines (2 without [Turn] and 1 with, and all 3 having, SUPPOSEDLY the same Flight Turn Rate, so theoretically the same ETB) and equipping the one with Turn ended up Dropping my turn rate. I'm wondering because a lot of the Fleet Engines have [Turn]x3 and I want to know if they are going to be worth it before spending so much Dilithium and Fleet Credits
  • sotaudisotaudi Member Posts: 7 Arc User
    edited August 2012
    switchngc wrote: »
    But the test I did above, the only change in the test was the engines (2 without [Turn] and 1 with, and all 3 having, SUPPOSEDLY the same Flight Turn Rate, so theoretically the same ETB) and equipping the one with Turn ended up Dropping my turn rate. I'm wondering because a lot of the Fleet Engines have [Turn]x3 and I want to know if they are going to be worth it before spending so much Dilithium and Fleet Credits

    Where did you do your testing? You will get different results on the ground and in space. To check the effects of space gear proplerly, you need to be in space when you check it.
  • switchngcswitchngc Member Posts: 0 Arc User
    edited August 2012
    sotaudi wrote: »
    Where did you do your testing? You will get different results on the ground and in space. To check the effects of space gear proplerly, you need to be in space when you check it.

    In Sol System, with my impulse slider at 100% (Not Full Impulse)
  • lostusthornlostusthorn Member Posts: 844
    edited August 2012
    The [turn] modifier is shown only on non set engines. While set engines just have a fancy name with their actual modifiers hidden.

    The aegis engine would have [spd] [turn] [special] as modifier but you would not see it. all you se eon those engines is their effect when actually equipped.
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