The fuel and smoke tanks were taken out to check they were still serviceable and given new tubing.
New bolt holes had to be made to hold the engine to the firewall. The throttle linkages on the Valachs are on the opposite side to the DAs so the pushrods hat to be moved across. This meant that the smoke tanks had to be lifted up so it didn't foul the movement of the pushrods.

The cooling ducting was modified which meant chewing out some of the nice detail that Steve had done because it now fouled one of the cylinders.
Once everything was checked in the cowling the tanks and batteries were put back in and all the systems were checked out.
The whole process was then repeated for Tango 1. Then 34x12 props were added which is the same size used with the Mokis we had at the start. The DA150s had smaller props - 32x10.
The engines were easy to set up. The first engine started on the second swing and the first on fired on the first flick. To date they have been starting reliably every time.
There is a slight increase in power and Richard and Steve are both impressed with the smoothness - especially on take off. The throttling is slightly different so each flight they are learning more about how they respond
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