2013 FEBRUARY / Vol. 5 / No. 2 /
GA
23
At CemAir we offer high quality utility
turbine aircraft to a variety of operators
thoughout Africa and the Middle East, both
as a leasing company and an operator. Focusing
on reliability, safety and quality, we offer resource
companies, premium airline operators and humanitar-
ian organizations the ability to go further and faster
into almost any part of the continent.
Now based at OR Tambo International Airport,
South Africa we are ideally positioned to provide
support to our clients. With Extensive experience
with the variety of challenges the continent offers
we are able to understand your requirements and
meet them in this rapidly changing environment.
Tel: +27 11-395-4473 - Hangar 6, OR Tambo Airport - PO Box 8266, Bonaero Park 1622
www.cemair.co.za
Specialist aircraft
leasing
We give our customers the peace of mind
of being able to rely on first world aviation
standards in third world environments.
Aircraft such as the A340 and the
B747 400 have winglets. Other designs
such as the B777 and the B787 omit
them in favour of raked wingtips. Large
winglets such as those seen on
B737 aircraft equipped with
blended winglets are most useful
during short-distance flights, where
increased climb performance offsets
increased drag.
Raked wingtips
Raked wingtips are a feature on some
Boeing aircraft, where the tip of the
wing has a higher degree of sweep than
the rest of the wing. The stated purpose
of this additional feature is to improve
fuel economy and climb performance,
and to shorten take-off field length. It
does this in much the same way that
winglets do, by increasing the effective
aspect ration of the wing and inter-
rupting harmful wingtip vortices. This
decreases the amount of lift-induced
drag experienced by the aircraft. In
testing by Boeing and NASA, raked
wingtips have been shown to reduce
drag by as much as 5.5%, as opposed
to improvements of 3.5% to 4.5% from
conventional winglets.
While an equivalent increase in
wingspan would be more effective
than a winglet of the same length, the
bending force becomes a greater factor.
A three-foot winglet has the same
bending force as a one-foot increase in
span, yet gives the same performance
gain as a two-foot wing span increase.
For this reason, the short-range
Boeing 787 3 design called for
winglets instead of the raked wingtips
featured on all other 787 variants.
A notable move to winglets from
the previously used wing fences has
been the new A320 aircraft which has
moved to sharklets which are optional,
Airbus own specially derived winglet.
Locally you can see winglets on all
of SAAs A340 and A330 aircraft, their
B737 800s as well as Kulula's B737
800s. SAAs current A319/320s have
wing fences.
A trio of established European
aviation businesses have come
together to create iFuel, a new aviation
fuel and associated services provider.
London-based charter broker Open
Aero, fuel supplier Jet Aero Fuels
(JAF) and Switzerland-based 28 East
Group have signed an agreement to
form the new company which will
support strategic expansion plans for
all three businesses. The deal was
ratified at the recent MEBA Show in
Dubai in December 2012.
JAF will provide 28 East Group
and Open Aero's clients with
competitively priced fuel, together
with ground handling services. It
is anticipated that savings of up to
28-30% will be available for clients
operating within the auspices of the
iFuel arrangement. With an initial
focus on the CIS region, where the
founders all have a strong presence,
iFuel will be offering services at most
of the CIS airports including Russia's
Sheremetyevo and Domodedovo
International Airports, Knevichi
Airport, Vladivostok, Boryspil
Airport, Kiev, Ukraine and Lochini
Airport, Tbilisi, Georgia.
JAF has been providing fuel
and aviation services to commercial
and military operators since 2006.
General Director of JAF, Rinad El-
Rabaa will become President of iFuel.
Owing to JAF's extensive network of
global fuel suppliers from which it
sources and sells fuel in bulk iFuel is
confident it will be able to compete
with established players in the CIS,
European and African markets.
The newly formed partnership
with 28 East Group and Open Aero
will widen the scope of JAF's services
to incorporate a business aviation
offering. For 28 East Group and Open
Aero the deal will ensure that new and
existing clients together with aircraft
operators will receive favourably
priced fuel and ground handling
fees when passing through airports
offering iFuel services.
"As fuel is the most significant
operational cost of any charter we
anticipate that having direct access
to aviation gas and premium ground
handling services, at beneficial rates,
will ensure large jet charters will
select iFuel in the future. This deal
buoys up 28 East Group's commitment
to providing aviation clients with the
best service and pricing possible, and
more importantly will open further
potential markets for all of the iFuel
partners in the CIS region and further
afield," said Erica Da Veiga, partner of
28 East Group. ·
New aviation services
provider iFuel to target
biz jet market. Initial fo-
cus on Russia and CIS
Back L to R: Luca Madone Partner 28 East
Group, Rinad El Rabaa President of iFuel,
Jeffrey Emmenis Partner 28 East Group,
Front L to R: Erica Da Veiga Partner 28 East
Group, Tatiana Tektova Owner Open Aero.