Skyranger Nynja, Build Manual

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Nynja Build Manual 1.4d
1.2 The BMAA Homebuilt Aircraft System
Before starting the build of your Nynja you must register the project with the BMAA.
The required forms are downloadable from the BMAA website at
www.bmaa.org , go
to the Technical Information section, click on Forms, and download form
BMAA/AW/022.
An example form for a Nynja fitted with a Rotax 912ULS and standard Kiev prop 283
is shown towards the end of this manual.
You will have to find a BMAA Inspector to oversee the project. A list of Inspectors is
available from the BMAA if required. Fill in the form with information about your
aircraft and Inspector.
Send this form, along with the certificate of conformance for the aircraft, engine and
propeller, with the current fee to the BMAA.
The BMAA will then register the project and issue you with a project number. They
will send you a pack of paperwork with information about building a BMAA homebuilt,
and a stage inspection form to be completed during the build by yourself and your
Inspector.
Please read all the paperwork that the BMAA send you when you receive it
–
this may prevent stress later!
You can also register the aircraft with the CAA and order registration letters
(available from Flylight) to save time later.
Your Inspector is required to visit prior to commencing any real building to inspect
your workshop and the kit. This forms the first stage inspection.
Your Inspector has to sign off several key stages of the build. Get his signature on
the form at the time, just in case! He can be a very useful source of knowledge and
advice, and should be your ‘mentor’ during the build. Also, a second pair of eyes and
an experienced mind can often solve problems for you in an instant.
Inspectors will vary somewhat in their likes and dislikes, and so requirements may
vary from what you may consider to be adequate. It is best to listen to your
inspector’s views, but in case of specific queries either you or your inspector may
contact Flylight or the BMAA directly to discuss matters.
Please respect the stage inspections and do not present him with a fully built aircraft
for the first visit! It is not his fault if you have to undo a lot of building to make right
something that should have been checked in a stage inspection before continuing
further. If there is a delay in having an inspection it is better to get on with building
bits and pieces like wheels and wing frames than to continue adding to the main
assemblies.
When your aircraft is complete and to your Inspector’s satisfaction, the completed
stage inspection form is sent to the BMAA. Also required to be sent at the same time
is the Engine Installation Check Sheet (either the Rotax version or the generic BMAA
version for non-Rotax engines). This details tests required to ensure correct
installation and set up of the engine, such as the fuel-flow test described towards the
end of this manual. Again your inspector has to witness the tests and sign the form.
The BMAA will then process the paperwork and raise a BMAA AW029 giving
permission to test fly, along with a draft MAAN (Microlight Aircraft Approval Note) for