Recent content by weerakkodi

  1. weerakkodi

    Why doesn't a 4-engine gunboat reach 20 knots when all 4 engines run?

    It is very excellent answer..Thank you very much sir..
  2. weerakkodi

    Why doesn't a 4-engine gunboat reach 20 knots when all 4 engines run?

    Thanks russ, if you please explain further why the ship doesn't achieved double speed than its earlier speed? what are the factors to reduce that speed?
  3. weerakkodi

    Why doesn't a 4-engine gunboat reach 20 knots when all 4 engines run?

    Thanks rcgldr, if you please explain why ship can't achieve its double speed?
  4. weerakkodi

    Why doesn't a 4-engine gunboat reach 20 knots when all 4 engines run?

    Thanks russ, if you please explain further why the ship doesn't achieved double speed than its earlier speed? what are the factors to reduce that speed?
  5. weerakkodi

    Why doesn't a 4-engine gunboat reach 20 knots when all 4 engines run?

    I have a some problem about marine propulsion. Assume the 4 engine-fast gunboat is moved by forward two engines. The boat get 10 knots. Then if other Aft two engines operate gradually. You know the boat doesn't get 20 knots speed. What are the reason for that? Explain theoretically? Thanks for...