1. It's easy to hydroplane to the island.
2. He saw many dragonflies hydroplane.
3. A hydroplane navigated over the lake.
4. The designer of marine aircraft demonstrated his newest hydroplane.
5. The museum houses a replica of the jet hydroplane that broke the record.
6. " And don't forget we're going up in the hydroplane to - morrow morning, at nine o'clock. "
7. And do not forget we're going up in the hydroplane to - morrow morning, at nine o'clock.