1.   A year later, a bad engine weld felled the second, so the third lifted a dummy payload.

2.   After two previously failures, the rocket carried only a dummy payload so Boeing had to eat the launch costs.

3.   Some companies test a new rocket with a dummy payload to make sure that it works correctly.

4.   The first Sea Launch rocket will carry a dummy payload because of concerns about past failures of the Zenit booster.

5.   The first Sea Launch rocket also carried a dummy payload.

6.   The Fregat unit also put a dummy payload into orbit.