hardtailjohn wrote:Now you need to bubble out that window a couple inches...it'll make it stronger, but even better visibility!
That's a good idea. Only thing is I'm hoping to squeeze some reasonable speed out of this thing and I don't know how much bubble windows will slow it down. Probly not much.
Jeredp wrote:I admire your "keep after it efforts" with having three kids! I can't imagine taking on a project like this with my two kids! They won't fully appreciate your efforts till later in life but I have no doubt that they will remember their airplane experiences with dad for the rest of their life. My boys still think riding in the airplane is just like riding in the truck. Everytime they tell someone new about their flying adventures, they get some strange looks

I gets really hard some times but I think it will be worth it.
Sidewinder wrote:I don't know if the BH people have addressed this, or if they do not feel that is an issue but, If the hawk is loaded up with some weight, the pax and baggage doors can be difficult to latch. This is due to flexing of the air frame causing door latches being displaced out of alignment.
It is understandable why this is happening. The void of structure that makes up the large rear door, lacks the bracing that controls the sheer forces in the airframe on the starboard side.
Personally I would consider a structural modification this area to mitigate this deflection while in precover stage. Initially, I would suspect that upper structure above the door is to blame, considering that this area is in compression, even though it looks rather substantive. But a look at the lower frame, shows that the door frame tapers, or structurally converges into the lower longeron. I ain't an engineer, but something tells me this is where the problem lies.
I have experienced the BH airframe flexing first hand and it is something I hope I have solved. Bob wasn't concerned about it when I asked him , even the kitset airframes flex and I don't think they have any plans to address it. Nothing plastically deforms so it isn't anything to get concerned about other than I found it annoying. The top of the door opening extends to the upper longeron and I think that is where the bending is taking place. There is a piece of 0.032 4130 steel bent into a "U" channel that squares off that upper corner of the door. On my airplane that "U" channel is replaced with a 3/4" x 0.035" tube and I think that will solve the problem. Before I cover the airplane I will load it up and see if the frame has flexed.