In 1957, he made the first nonstop supersonic flight across the United States, flying from Los Angeles to New York in three hours and 23 minutes. Glenn was preceded in space by two Americans, Alan B. Shepard Jr. and Virgil I. âGusâ Grissom, and two Soviets, Yuri A. Gagarin and Gherman S. Titov. In April 1961, Gagarin was the first man in space, and his spacecraft Vostok 1 made a full orbit before returning to Earth. Less than one month later, Shepard was launched into space aboard Freedom 7 on a suborbital flight. In July, Grissom made another brief suborbital flight aboard Liberty Bell 7.
Most customers will spend between $700 and $2,800 for a mid-quality heat pump, not including labor costs. Depending on the brand, model and installation factors like drilling or excavation, this can take the cost up to $9,000.
â¢ Heat pump: Most heat pump upgrades cost $1,000-$2,000, plus additional expenses for electrical upgrade or wiring. â¢ Hybrid / Dual fuel: Most hybrid upgrades cost $800-$1,600. Hybrid is all the benefits of the heat pump without the loss of the good heat of a gas furnace.