CLUB SUNDOWNER CLASS
Current as of 02/01/2010
NOTE: If you need more information or clarification, E-mail us at supra@miners-peak.com or post any comments or questions in the FORUM.
PLEASE NOTE: If the listed class
does not specifically say that something can or cannot be done to an engine
or airframe or any other component, it should be considered that it CANNOT be
done.
Also note that the models that qualify for
the Sundowner class can also race in one of the bracket classes, (Sport or Super
Sport). If the pilot wishes, the
plane may be entered in only one of the bracket classes.
If an airframe is raced in one of the bracket classes, it must continue
to be legal while running in the Sundowner class.
4.1
The model for this class will be limited to the Hanger
9 Sundowner 50 only.
4.2
The engine for this class will be limited to the Thunder
Tiger Pro .46 only.
4.3
Muffler must be the original OEM, (Thunder Tiger), muffler that is
supplied with the engine. No enhancements or modifications can be made to
the muffler to increase performance, with the exception that the baffles may be
removed. If it is necessary to replace the muffler, it must be a
replacement in kind to the original muffler supplied with the engine. No
Pitts Style mufflers.
4.4
Minimum dry weight of the model will be 5 lbs. 12 oz., (5.75 lbs.),
(Ready to fly, no fuel).
4.5
Fuel for this class will be provided by the race organization.
Fuel will have a Nitro-Methane content of 15%.
NOTE: If a model is flown
in this class AND one of the bracket classes, it will be required that the pilot
remove the fuel from the tank before and after racing in the bracket class.
Only fuel provided for the Sundowner class is to be used during heats
flown in this class.
4.6
Propeller will be limited to the APC 10 X 7 Sport Prop only.
Propeller will be the responsibility of the pilot. Race organization will
not provide propeller. Propeller will not be modified in any way.
Only whatever is needed to achieve proper balance may be done to prop as long as
it does not change the pitch, length, thickness of blades or hub or anything
that else that may change or enhance performance.
4.7
It is recommended that the servos installed are the ones listed in
the assembly manual. At a minimum,
the servos must be a standard size rated at least 40 oz/in. torque at 4.8 volts.
No micro servos allowed.
4.8
Model must be assembled according to the manual with no changes to
the external outline of the model. No modifications or enhancements to the
airfoils or any other part of the model are allowed.
4.9
Graphics may be added or removed or plane may be completely
re-covered as long as no changes are made to the internal or external structure.
4.10
Pushrods may be replaced as long as it does not enhance
performance.
4.11
Control horns may be replaced as long as it does not enhance
performance.
4.12
E-Z connectors are not allowed on any of the control surfaces,
however they may be used on the throttle connection.
4.13
Engine shut off or throttle cutoff must be available from the
transmitter.
4.14
Tail wheel assembly may be replaced as long as it does not enhance
performance.
4.15
Main wheels and tail wheel may be replaced as long as they are at
least the same width and diameter as the original wheels that came with the kit.
4.16
Main landing gear must be the original style that came with the
kit. Gear may be re-painted or stripped completely clear of any paint or
color, however, nothing may be added or removed from the leading or trailing
edges nor any other part of the landing gear that may enhance performance.
4.17
The cover over the landing gear mount is optional.
4.18
It will be up to the race organizer as to whether wheel pants are
required to be installed while racing, (knowing that some of the fields we may
be racing at are rough or dirt).
4.19
The pilot in the model is optional.
4.20
Sealing the hinge gaps is allowed.
4.21
Spinner may be replaced, however the spinner must be a minimum size
of 2 1/2 inches in diameter.
4.22
It is highly encouraged that you add graphics to your aircraft to
make it easy to identify while in the air.