Well I am about to start a new project (Skybench Big Bird w/ electric power and flapperons added) and it is time for me to move up from the trusty Futaba Attack 4 AM radio that has served me for more years now than I care to remember. An entry/mid level computer radio seems like a good investment.

Question: it appears that each model and brand I look at has aircraft and helicopter versions, yet they all seem to have the same programming features for each type of aircraft. I see no reason why the H version of a particular radio cannot be used for for AP as well as the AP version. What's the difference?

The reason I ask that in looking at the used market, I need to know whether or not a good used H radio will do just fine for my sailplane, electric and gas flying or not.

Thanks,
Bill

If I am not mistaken the gimbals on the 'copter version are a bit different, I don't think the throttle is ratcheted. Go with the a/c version. The Futaba 7C is nice, I have the 9C and love it; easy to program, lots of flexibility, has preprogrammed mixes as well as custom capability.

You can use a helicopter radio for an airplane but with an airplane the throttle is ratcheted. It has various ¨clicks¨ of movement. While a heli radio has a smooth throttle adjustment for finer movements. Also, some of the programable switches are diferent on some radios.

If you want to fly airplanes you will probably be better off with an airplane radio.

Another difference is the location of some switches and knobs.... I have a heli version of the JR8103 which has different placement of knobs from the aircraft version. I primarily fly aircraft but fly heli as well and have no problem without the ratcheting on the throttle...

Thanks for the quick replies.

I have been looking at the 7C, as well as other options. I am beginning to get a little overwhelmed by all I have to learn just to make an informed decision on this purchase, and I am wondering if perhaps I am considering radios with far more capability than I need. The budget is limited, so I need to get just what makes sense for now and the next few years to come.

The current need is this: The ability to do flapperons, mix elevator with flap function, mix rudder with aileron function. I would like to be able to set flaps with some reflex as well.

Needs over the next several years: I will probably build another electric or pure sail plane or two, probably a gasser as well (nothing complicated). I don't know that I will be doing anything that will require transmitter features beyond what I am currently looking for. (I have a wife and kids, as well as a business and not that much time to build airplanes)

Perhaps someone could provide some feedback on a lesser radio that would complete the mission?

Thanks,
Bill

The 7C is the minimum radio you can buy from Futaba that will allow you to have these mixes. For the money the 7C is the best buy as compared to the Futaba 6 channel radio.

The Futaba 6EXA would probably JUST meet your needs. The Flash 5SX might do it too, but based on what you posted, perhaps not. Either would be an upgrade from your current radio.

I would direct you to the Futaba 7C, the Hitec Optic 6 and the JR 6102. My personal preference would be the 7C. If you can spend $300 on the radio alone, I would give a strong endorsement to the 9C.

You have not given us a budget, so I don't know how much you have to spend.

Remember you can buy many of these radios without servos/receivers, etc. Depending on what your next plane will need, the packages can be a good deal, or they can leave you with servos and receivers that are too big and heavy or too weak for hte application, so don't hesitate to buy the radio/battery/charger alone.

The following is a summary of essential features related to airplanes and
gliders. Many of these radios have helicopter features but I don't review
them. I have researched these for myself or friends. You will have to read
the manuals to confirm how they apply to you. I include links to the
manufacturer's/distributor's product page, where available.

Prices shown are approximate value for radio alone either in a package, or the
radio purchased by itself including battery and charger. Groupings are based
on my estimation of radios with comparable levels of features. Your mileage
will vary. Ease of use is subjective so it is not included here. If you note
an error, please let me know.

Unless noted otherwise, all radios have Low Battery Warning, Digital Trims,
Timers, End Point Adjustment, Dual Rates
and Exponential on Ch1&2; some include Ch 4. All include elevon and V-tail
mixes. In most cases, not all mixes or features are available at the same
time on the same model. Unless stated otherwise radios do not have support
for 4 wing servos or split elevator servos.

This article may be useful in understanding the features I mention here and
their value.

Radio Systems Part 2 - Computer Radios - The right choice for almost everyone
http://www.rcezine.com/cms/article.php?cat=&id=65


Entry level Computer Radios 5/6 channel - approx $90-110
If your focus in on parkflyers, RES sailplanes, aileron sailplanes or glow
planes, these are very capable for the price. In addition to the basic 4
channels they have retract, flap and/or split aileron capabilities. These
make great first radios for the committed new pilot, providing features beyond
the 4 channel "standard" radios at a small incremental investment. For many
pilots, these may be all the radio they will need for years. They will fly
more advanced planes, like full house sailplanes or aerobatic planes, but may
not be able to bring out all the plane can offer.

Hitec Flash 5SX -
http://www.hitecrcd.com/Radios/Flash5.htm
5 Channel, 5 Model Memory, Ch 1/5 provide dual ailerons management for
Flapper, Flaps on 3 way switch or Throttle Stick. Aileron-Rudder mix. No
user defined mixes.

Futaba EXA -
http://www.futaba-rc.com/radios/futk55.html
6 channels, 6-model memory, Prop Flaps chi 6, Flapperon using 1/6, 1 user
defined mix. No timers.


Mid Range Computer Radios 6/7 Channels Approx $130-160 for the radio.
These radios provide a richer feature set than the entry level computer
radios, primarily in more model memories, more surface mixes and switch
assignability. These radios can bring out more of the capabilities of more
advanced planes and give you set-up options the entry level computer radios
lack. If you have been flying a while on a 4 channel radio and now want to go
to more advanced planes but keep the price "reasonable", this might be the
group to consider. If you are a new flyer with a larger budget, these may be
a good fit. Some have limited split elevator features for larger or aerobatic
planes. Read the manual carefully on this. For example the 7C can operate
split elevator servos, but can not trim them in flight.

Hitec Optic 6
http://www.hitecrcd.com/Radios/OPTIC.htm
6 channel, 8 Model Memory, Model naming, Spectra channel synth option, Change
channel module, shift select, Switch Assignability, flight modes, 2 user
programmable mixes, and a variety of standard mixes.

Futaba 7C
http://www.futaba-rc.com/radios/futj69.html
7 channels, 10 Model Memory, Model Naming, Switch Assignability, Flight Modes,
3 user programmable mixes a selection of standard mixes.

JR 6102
http://www.horizonhobby.com/Shop/ByC...odID=JRP6664**
6 channels, 10 model Memory, model naming, Selectable switch locations,
Direct Servo Connect (DSC), 4 user programmable mixes, a variety of standard
mixes,


Hitec Eclipse - The Eclipse is an older design but has some nice features and
is quite popular. It is distinguished from the group above in that it has
some support for a 4 servo wing and perhaps a mix or two more but still in an
under $200 radio. If you want to fly full house sailplanes, or aerobatic
planes with the flaps following the ailerons, take a look at the Eclipse.
Other than that, most of its features can be found in the previous group at
lower cost. While switches are not generally assignable, many people don't
feel this is all that important.


Hitec Eclipse 7 - $180- for the radio
http://www.hitecrcd.com/Radios/eclipse.htm
7 channels - 7 model memory, Shift select, 3 conditional mixes per model,
Channel change
module and Spectra frequency synth, Five user programmable mixes, conditional
mixes, a variety of predefined mixes


The Futaba 9C - Unless you have a large budget, I would not consider this a
first radio. If you have outgrown your entry level or intermediate computer
radio and want a significant jump in capabilities, take a look at the Futaba
9C. The Futaba 9C is an advanced sport radio, or a budget competition radio,
that has virtually all of the features that advanced sport power and sailplane
pilots are likely to need. I would not call it a professional or serious
contest radio, but you can enter into those realms with the 9C. It has a very
strong following.

The 9C is the first radio in the evaluation group that has
full support for 4 servo wings, split elevators and a broad selection of
standard and user definable mixes that serve acrobatic and sailplane pilots.
It also has extensive Heli programming but I have not evaluated that.

Model memory is unlimited based on 8 internal supplemented with removable
CAMpacs with 6 or more models. Channels can be changed via removable a
module, and a channel synthesizer has just become available. You can move
programs from one 9C to another by swapping CAMpacs between radios.

As an instructors radio, the trainer feature allows the instructor tremendous
control over the student's flying experience. It has a large selection of
predefined and user definable surface mixes and is pretty easy to program.

Many call this the best bang for the buck on the market under $300. This is
the one I purchased after looking at all the ones above and below, so this is
the one I know best.

Futaba 9C 8 channels in FM, 9 with PCM - approx $280 for the Radio alone
http://www.futaba-rc.com/radios/futj85.html
9C has unlimited model memories via removable modules 7 User-programmable
Mixes + 6 defined mixes, 4 snap roll programs, two servo elevator support, 4
servo wing support, customizable trainer program.



$450+ for the radio alone

Royal Evo 9 - 9 Channel
http://www.multiplexusa.com/Radios/royal-evo-9.htm

Airtronics stylus - 8 Channel
http://www.airtronics.net/stylus.htm

In my opinion, these are the top of the line of the consumer radios or perhaps
are the entry level professional grade equipment line. You name it, they
probably do it. They have completely different approaches to how they provide
their features. More than I can cover here. If you have the bucks, check
these out. More than I wanted to spend and more than I needed. Both are
awesome!