The purchase agreement for a Bell 429 helicopter with Caverton Helicopters is likely to have a positive short-term impact on Bell Textron Inc.'s stock price. This deal demonstrates the ongoing demand for Bell Textron's helicopters, particularly for offshore operations, which could be seen as a positive indicator of the company's performance in the aviation sector. While the financial details of the deal are not disclosed, the sale of high-value aviation equipment like helicopters typically contributes positively to a company's revenue and can be viewed favorably by investors.