E Flite Blade SR fitted with
MIA's Performance, Stability, Durability and Aesthetically
Enhancing Mods and Upgrades.
I set out to design these specific MIA TUFF™
SR Upgrades I am offering, after flying the Blade
SR in stock form, out of the box and having a slight mishap
landing, breaking and shattering the canopy and canopy support
bar, as well as bending the boom. I was a bit upset! It was not
like I had crash hard, so I decided right away, that the SR could
benefit from some of the Upgrades I had employed in previous
similar micro heli designs. I didn't want to diminished my confidence
level in the Blade SR to withstand more enthusiastic level of flying,
but I knew that I would have to change some parts to give it an
extra level of protection in case of a reoccurring similar mishap. I
typically fly in rough terrains, and the MIA TUFF™
Upgrades are ideal for such, but the benefits also apply
to just about to anyone seeking a
more robust and confidence building Blade SR setup.
I recognize that the Blade SR stock heli is very nice and
some people are actually pretty good and never crash, so these
upgrades may not apply to some of you out there that are at this
level of flying.
The Blade SR
design flows very well, something I like about E-Flite, as a
company, but one cannot realistically expect from any company a
product that meets 100% everyone's needs and expectations. So
every product has a gap for improvement, including my own.
However, I
often revamp, my own products as well, to offer a wider choice
of options to a wider audience, based a number of needs. I believe these MIA
TUFF™ SR upgrades
bridge that gap and offer a greater margin of protection for the
Blade SR helicopter, as can be appreciated in the MIA TUFF™
SR video (S).
About the
MIA TUFF™
LG Struts
In general, the MIA TUFF™
LG Struts are typically taller and designed in an
"A" shape form, a setup and style that has been a trademark of
MIA Micro FLIGHT, for many years, since first employed in
the MIA 1999 Robin 280 micro and similar MIA Retrofits and
Upgrade Kit for helis that followed, such as
the Century Hummingbirds, GWS Dragonflies, E-Sky Honey Bees,
etc. I applied the same upgrade design concept also to the QUARK SRB, Walkera,
Nine Eagles helis and even really small helis such as the MIA
Palm-Size™ original designs and
similar ones that have appeared in recent years such as the E-E-Flite
mCX and mSR, for the very same MIA TUFF™ LG benefits as described
here.
The new MIA TUFF "Delta" ™ Tail
Rotor Guards are also designed with the concept of protection
for the tail section. I have designed countless vertical and
horizontal stabilizer fins over the years of running MIA
Micro-FLIGHT and offering upgrades worldwide to micro heli
enthusiasts, and have tested, on various size helis, numerous
and creative ways of adding an extra level of protection
for the tail section, without compromising tail performance,
while providing a unique simple and attractive look. I arrived
at the design of using a ring made of the same, but thinner
material to the MIA TUFF™ LG Struts,
coupled with a delta shape part made from the G10
material, same as used for the MIA TUFF™ LG strut supports, micro frames and
skids, in general.
I realize the benefits
of this particular design might take a bit to sink in,
for new viewers, especially if you are accustomed to the more typical fins that
everyone in the industry uses as tail fins, but for all
practical purposes, single piece rigid fins, in general, do not
work as well as ones which have a level of cushion or suspension,
yet wide or tall enough to guard the tail blade on a hard
landing. At least in my reasoning, and personal experience, coming down with the heli on
a hard tail fin and very rigid LG simply transfers
that impact to the boom and mainly tail section, with the
blades' suspension pulling them towards the boom, thus resulting
many times in the infamous "boom strike!". Has this happened to
you?
If you are mechanically
inclined, and can visualize the dynamics involved in the above
MIA TUFF "Delta" ™ tail protective guard photo, then these words will
probably be nothing new.
About the MIA Custom Tail
Blade Option to the Blade SR Stock Small Tail Blade
I also noticed that the Blade SR tail rotor, no matter how
well I tweaked the gyro, it still hunted, vibrated and whined
too much for my liking. So I set out to try various blade
options.
My design work experience with the 2001 MIA House FLY
sub-micro helicopter, indicated to me that the direct drive tail
blade on the SR is simply to small with the stock tail motor, to
counter the main rotor torque smoothly. I had tried on the House
FLY similar direct drive tails with smaller blades and I had the
similar hunting issues with the tail, this also has to do with
other mechanical, electronic and dynamic factors,
the gyro setting, type of motor, and level of electronic design
in particular in the ESC-mixer section, not to mention, there is
got to be a happy medium with the main blade pitch and rotor
axle to axle distance, also, so
things have a wider envelope of adjustment to balance the main
and tail rotor torque. I solved this issue on the House FLY by
going with a geared high ratio tail setup, using a large tail rotor blade
with a small tail motor. Later on, trying a higher speed and torque
BL tail motor with smaller prop seemed aesthetically better, but the fact that
the small tail rotor required time to rev up to higher rpm and
thus more time to catch up with the main rotor torque balance,
it was evident to me that the larger diameter geared tail rotor
was a more efficient setup, since it consumed less power and was
more quick to respond to stick input control and tail response
was smoother.
For simplicity sake, I opted
not to redesign the tail section on the Blade SR but to provide
a blade option that I think is much better than the stock, and
one does not need to replace the stock tail motor. My videos are
done also with such. So I will also offer, this MIA Customized
Tail Blade to be used
with the stock Blade SR tail motor.
Providing a much better
Swashplate Anti-rotation bracket and Making the Blade SR
Battery Mounting More secure.
I had some slight issues with
the mounting of the Blade SR battery, the Velcro strap kept
falling off and was hard to get a snug strap on it.
Therefore, I came up with better and more secure way of
strapping the battery without too much fuss. I designed some small buckles from G10 that simply slide over the existing
battery Velcro strap and provide 3 things:
1) they hold the Velcro strap in place
2) They hug the battery tight against the
side of the from t of the frame
3) it provides a much better
gripping and tightening strap mechanism for the battery.
In addition, I also made some padded and double-sided foam plate
for both the battery and the frame battery location, so that I
could easily mount the battery at the same location without
changing CG.
The SR is a great heli stock, but is a lot better with the
MIA Upgrades.
Q. Who Can benefit from the SR fitted with the MIA Upgrades?
A. Anyone who is looking for a much more fool proof,
robust and stable setup.
If you are transitioning from Co-axials to the E-Flite Blade SR
heli, you will really benefit from the MIA TUFF (TM) LG Kit
which comes with the MIA TUFF Delta (TM) Tail Guard and other
neat little improvement items to make your flying
experience much more enjoyable. Minimal broken parts equals a
more enjoyable helicopter.
These specific MIA TUFF ™ Upgrades
are designed mainly for Higher "protection and durability "of
the Blade SR helicopter.
Interchangeability and Application to Other Helis
So many helis are
similar in size and in parts. What works for one will
typically work for the other with little or no modifications, in
some cases. Therefore, the MIA Upgrades employed in the Blade SR
, shown in MIA video (s), will also apply to similar size and
type other brand
helis.