I'm planning to build the WA5JVB Cheap LEO Yagi, which is basically a 2M and a 70cm yagi on the same beam for handheld or tripod use. I'm thinking to do a 3-element 2M and a 5-element 70cm design, and I'd like to make the entire thing no more than 36" long. Each antenna is individually ~20", which obviously won't fit in 36". Can I place the director of the 2M antenna ahead of some of the elements of the 440? Ideally, this would be between D1 and D2 on the smaller yagi.
I'm not sure how much impact the variously sized pieces of metal would have on each other, my biggest concern is that the 2M director would act as a reflector in front of the 70cm driven element. If this isn't possible, I'll probably just build the 2 + 5 pictured to keep it portable.