Read "Flight from Tomorrow" by H. Beam Piper online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Almost at once, there was a new sound -- a multiple throbbing, at a quick, snarling tempo that hinted at enormous power, growing louder each second. Hradzka stiffened and drew his blaster; as he did, five more aircraft swooped over the crest of the mountain and came rushing down toward him; not aimlessly, but as though they knew exactly where he was. As they approached, the leading edges of their wings sparkled with light, branches began flying from the trees about him, and there was a loud hammering noise.
He aimed a little in front of them and began blasting. A wing flew from one of the aircraft, and it plunged downward. Another came apart in the air; a third burst into flames. The other two zoomed upward quickly. Hradzka swung his blaster after them, blasting again and again. He hit a fourth with a blast of energy, knocking it to pieces, and then the fifth was out of range. He blasted at it twice, but without effect; a hand-blaster was only good for a thousand yards at the most.