Thats a given- the LG Block needs beefing up. I mad the same mistake on my previous (two) Reactor 46s where I didnt reinforce the LG block and it broke off many times. In that airplane the LG 'block' is inside the fuse, so it does a lot of damage when it rotates. Someone on the Reactor 46 thread suggested two things to prevent this- adding CF stock inside the LG block and replacing the LG
The Bipe shares a few of the 46's problems- firstly the LG block is just a ply former. Secondly, the LG is two piece. In a hard landing, the LG flexes outward and the ply simply breaks in the middle. Also, the LG tends to rotate, crushing the fuse components near its trailing edge. So, I am planning to add in the CF stock across the fuse to take the bending moment and then put in some (furniture) ply in the LG block and secure it in place with tristock to take the compressive stress and shock. Problem is the tristock has nothing to glue against as there will be a gap between it and the fuse side due to the balsa frame. So at the minimal, I will need to fill up that bay
Second thing that happens in a less than perfect landing- if you hit the wingtip, the fuse will break at the dowel and behind the wing TE. To avoid both, I will tristock and fibreglass these areas
Firewall needs to be fibreglassed to take the larger engine / possibility of a DLE20 later.
I will need to relocate the blind nuts, so am ordering 4mm blind nuts so that I have something standard to work with instead of 5/64 screws everywhere (you can only use allen keys for those)
I will be using larger 3" rubber (or foam, depending on the total weight) wheels and am getting CF landing gear from HK that is one piece.
Plus I will put tristock everywhere in the fuse I can reach
Doubt this will add too much weight. I am still to study the fuse properly, not enough time after work[

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Ameyam