There very few multiengine homebuilts out there and for pretty good reason. Engines represent an enormous part of the cost of an aircraft project and the cost per horsepower tends to go down with increasing size. Add in the cost of accessories and propellers and it's easy to see why two 50 hp engine installations are going to cost more than one 100 hp installation. Here is the Grenet G.47, an amateur-built light twin from 1949 powered by two 40-45 hp Salmson radials, performance is modest but it's still an interesting concept. What do you think?
![Les_Ailes___journal_hebdomadaire_[...]_bpt6k3201448k_8.jpeg](https://cdn2.imagearchive.com/homebuiltairplanes/data/attachments/71/71222-3960612c264f825f073f5cd8c03340e3.jpg "Les_Ailes___journal_hebdomadaire_[...]_bpt6k3201448k_8.jpeg")
