Yorn, thats exactly what I do. I use cloths and such ont he ends and its packed in nicely around cloths and gear. The more fragile stuff (binos etc) goes in my carry on. I have an arrow case underneath the bow cloths on top and usually either a boot on either end or something firm to keep the tips from being beat up. Topped with cloths and gear. Have done this for years now and its worked very well. I usually am lucky enough to fly south turkey hunting every spring and every fall or three get south for a MN whitetail hunt. I have and I think it helps is having a fly rod tube in there alongside the bow, that with the arrow box underneath ensures they arent going to squash my bag hard enought to do damage to the tips.
Remember weight becomes a factor when flying these days! Last spring it bit me bad. 4 bags, flying from KS to PA to finish my turkey season ran me 400 bucks in excess baggage alone! So if you're going to pick a case do it smartly! Very few meet all the requirements of bomb proof and light
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you one piece guys if you're going to go with a tube...the telescoping rod tubes work very well and are large enough in diameter to make the extra bag fee worth it..ie stick your cloths, socks etc in the tube with the bow and any other gear you can fit. This is where that white three rivers arrow tube would really shine....with a large enough bow tube, yo ucould fit the bow, the tube of arrows, and the bulk of your hunting gear in the tube and its about as bomb proof as they come.