Meeting with Backpack Factory

Andy,Re: 22 x 14 x 9 in.Several months back I did research on carry on bag size limitations. I looked at most every commercial airline especially including all LCC's based on online information. Not all were published on websites or easily findable at the time so this was not an exhaustive study.The purpose was to know the lowest common denominators worldwide in the hopes of never being denied because of bag size. Because of this, height, width and depth dimensions were all arrived at independently.Here's my findings:H: 48 cm | 18.90 inW: 34 cm | 13.39 inD: 20 cm | 07.88 inYou can see this is just slightly smaller than your 22 x 14 x 9 dimensions. As for weight limitations I came up with the following:5 kg | 11.02 lbs (a few)6 kg | 13.22 lbs (several)7 kg | 15.43 lbs (common)Obviously weight is more easily adjustable on the fly than physical size, so a bit less important.It's possible some airlines may have changed their limitations within the last year as well.Hope this is of some value to the windmill project.Eric

Hello Eric,This is great information, and because you did it, I trust it.I will have to think on this, I am not sure it is a good idea to go smaller. The reason is this, I have been looking at carry-on bags for the last few years. I see very few bags that would fit into this size rectangle, if any.What is more important is the perception and will the bag fit into the compartment above the seats.I have been on planes where they took all the trolley carts and forced them to be put below, while they allows my soft bags. You cannot stuff hard luggage into a small space.My bag would fit into this rectangle rather easy, according to how full the bag is, but also can bulge wider when packed.I have not yet decided, however I have been cosidering putting some pull straps on the interior, that would help stop the bulge. More or less side to side.Whatever the case, the information you have collected is valuable.The other consideraton is they also have an addition type method.They will add 14, 22, and 9 to come up with a total and this number has a limit.This would allow shorter bags, yet fatter. The Kelty bag I presently have a 3100 is small, very small, but very fat, so it looks larger than the rectangle, but is really smallers in volume, a very annoying problem as I must check the bag.The distrubution of space in the back needs to be 14 x 22 x 9 or maybe as you have 18.9 x 13.39 x 7.88 inches.That 7.88 is the kicker, the problem, there rest is maybe the result of the when they try to use centimeters versus inches.I trully believe the governments of the world should force this to be an identical numbers. Their are many airlines that trap you.Here in the Philippines, a person can fly with Philippine air here and have up to 60 kilos, and cannot get on the same airlines to go anywhere to fly to an Island.There is a need for lockers of storage, they are disappearing from airports, trains, buses etc thanks to the Islamic Terrorist.There is a reason for this link collection storage locatins, plus my favorite hotels have storage rooms.Storage and Lockers for Travel Bags