Allison's popular 501-D turboprop engine had already proved itself on the Lockheed C-130 military transport and L-188 Electra trunk route airliner as a reliable workhorse providing ample power. As Convair's rugged 50-seat twin-piston 340 and 440 models exited mainline service and were acquired by regional carriers in the early 1960s to provide capacity upgrades and higher service levels, industry engineers started investigating whether newer turboprop power could be retrofitted to the durable Convair frame. Several manufacturers' engines were successfully integrated, but most of the upgrades used the 501-D, with Frontier and North Central amassing converting notably large fleets - the renamed Convair 580 saw service on every continent thanks to its remarkable fuel economy, faster speed, and easy maintenance.
The 580 would continue service with Republic and even Northwest - and some North Central frames continued in passenger service all the way to 2022! We celebrate both the iconic engine and North Central's colorful mid-1960s livery evolution with this "retro" shirt design.
This classic unisex jersey short sleeve tee fits like a well-loved favorite; soft cotton and quality printing make it part of your everyday wardrobe. These t-shirts also have-ribbed knit collars to bolster shaping, and the shoulders have taping for better fit over time. Dual side seams hold the garment's shape for longer.
This print-on-demand shirt will be sent directly from the production facility in the USA to you.
.: 100% Airlume combed and ringspun cotton (fiber content may vary for different colors)
.: Light fabric (4.2 oz/yd² (142 g/m²))
.: Retail fit
.: Tear away label
.: Runs true to size
|Sleeve length, in||8.62||8.90||9.17||9.45||9.72||10.00||10.39|