Carf-Models Ultra Flash, Instruction Manual

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About the ‘FLASH’
The CARF
Ultra F
lash's aerodynamical design is based on the CARF
Ultra L
ightning.
The
Ultra F
lash is 20% reduced in size, and has a few additional modifications made. After more
than a year of experience with the Lightning we were able to further simplify the design and
even improve the aerobatic performance.
We decided to build the whole
F
lash based on the K.I.S.S. principle. A single piece wing and sta-
biliser means that the plane consists of only 3 structural parts, plus a canopy frame and an
exhaust nozzle. With a wingspan of 1.64m transportation is not an issue and assembly at the
field is made very easy and quick. Servo installation is made very easy, too. We omitted the need
for gear doors, another important point to keep the design simple. The well proven
Behotec/Intairco landing gear/wheels & brakes does its job in the
Ultra F
lash with authority.
Prefabrication is taken to the limits of what is possible. Only R/C, fuel system and engine equip-
ment needs to be installed, there is absolutely no building work necessary. We give you the
choice of using a lightweight engine (eg: P-70, P-80), and only carrying about 2.3 litres of fuel in
the plane, with a perfect ducting system around the engine, or a heavier, more powerful turbine,
with an additional wing fuel tank available as an optional item. We strongly recommend to keep
the
F
lash as simple and light as possible, so that it can best present its breathtaking aerobatic
manouverability.
The
F
lash's maximum speed easily reaches the AMA's legal limit (200 mph) but this is not what
the plane is designed for. Control surface arrangement, airfoils, wing loading and tail moments
are all designed for perfect pattern-style aerobatics. Constant speed vertically up and down is
more important than top speed in a low pass. Still, the low wing loading and the powerful
flaps/spoilers give the Flash incredible slow speed characteristics, feeling very ‘light’ with no ten-
dency to ‘tipstall’ at all. Very high angles of attack of 20 - 30 degrees are possible in slow flight.
Still, the plane ‘snaps’ really well and, due to the single piece wing, it takes a lot of hard flying
without "hard feelings" !
The Flash is the "right-sized" Sport Jet for most of us. Easy to transport, easy to store, quick to
put together at the field, yet large enough for unbeatable flying performance. Incredibly strong
structure, combined with the strong but simple landing gear even lets it take some abuse. Short
landings on small and rough fields are handled with ease due to the slow landing speed.
The CARF
Ultra F
lash if the best flying Jet possible for the money paid, there is no question
about that. It is the most prefabricated and strongest design for the money paid - no question
about that either. How much more can you expect ? How much more would you need ?
How much more would you possibly want to spend, especially when the "Go Fly Price" of others
equals the "Go-Fly-Twice-Price" of CARF
-Models
?
CARF
-Models
rules...!
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