29. Secure the cowl using 4 3mm socket head bolts in conjunction with 4 bonded sealing
washers as shown.
30. Install your switches, battery and receiver as well as prop and spinner to achieve
proper center of gravity.
Pipe or canister installation hints
You may wish to install a tuned exhaust system in your aircraft. We have built a pipe
tunnel into the bottom of your aircraft to make this a relatively easy task. Some of the
advantages of using a tuned exhaust are an increase in power and a reduction in engine
noise. There are many makes of tuned exhaust systems available for 50cc engines. For
the DA-50 you will need to purchase a wrap around header with a 25mm drop which will
position the pipe in the center of the tunnel. You will also need to purchase a Teflon
coupler and spring clamps. Here are a few pictures of our installation of an ES
Composites carbon fiber tuned (www.escomposites.com) pipe using a Dave Brown
Products pipe mount. Notice we have put a ring of high temperature silicon gasket maker
around the pipe to prevent the melting of the nylon cable tie we are using to retain the
tuned pipe.
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