Can anyone please tell me the major difference between the Trimble 2101 I/O and the Trimble 2101 I/O Approach Plus? Whilst I have operated both systems in the past I cant remember any major differences.
Not 100% sure as I've nit had to install one but I think the I/O approach plus is mainly Arinc 429 (digital)interfaces with the aircraft systems, for the more modern aircraft whereas the I/O are analogue interfaces (synchros etc)for the older retrofits. There may also be a channel number difference for the GPS (2/8/12 blah blah). . .Basically I think the differences are more noticeable for the installer rather than the operator.
PS Trimble have a website if you really want to know
The Trimble 2101 was designed for IFR approaches .. .I believe, but don't quote me on it that Transport Canada won't approve it for IFR approaches because of high work load during approaches ( us Canadians ain't that smart just Hockey Players ya know ).
The 2101 Approach Plus is a DZUS-mount flight management and navigation system for commercial and corporate aircraft operators. The system meets FAA TSO C-129 (A1) and European Basic Area Navigation (B-RNAV) certifications. The unit incorporates an ultra-high contrast display for maximum sunlight readability and continuously checks accuracy using Receiver Autonomous Integrity Monitoring (RAIM) and predicts RAIM conditions for approach. The Trimble 2101 Approach Plus can store up to 40 flight plans with 40 waypoints each, showing nearest airport, displaying minimum safe altitudes as well as many other features. The receiver incorporates Jeppesen's NavData card including airports, approaches, SIDS, STARS, VORs, NDBs, airspace boundaries and MEAs. The unit interfaces with CDI, flags and external annunciators and altitude inputs. When integrated to an optional air data computer, the receiver displays true air speed, density and press altitudes, calculates and displays winds aloft and applies current wind to ETE and ETA calculations.. . . .The 2101 I/O Plus is a DZUS-mount system for the corporate, helicopter and regional commuter aircraft operators and is certified to TSO C-129 (A1) and B-RNAV. The 2101 I/O is also certified for primary and remote oceanic navigation. In addition to all the features of the 2101 Approach Plus, the 2101 I/O Approach Plus interfaces to many other flight instruments to maximize the flexibility of the system, all within a single unit.
Safe flight have taken over sale and support of these units as well as the Terra range of Radar altimeters . I will post the contact phone number on Monday for anyone who is interested. They are offering trade up from the TNL2000 range as well.
I'm told that Trimble is exiting the flying machine business for other fields with bigger volumes and bigger bucks. They've entered a partnership with Caterpillar, to put GPS on all Cat rental equipment. They're also big in farm tractor GPS, again with huge volumes compared to aircraft.. .. .Sort of puts the aviation business into perspective.
One of the less than intuitive things about that GPS is the way you change initial points for an approach. At least it used to be very counter-intuitive, but they have changed the software. Make sure you know how to change the instrument approach initial point for a given runway - not the easiest thing to remember. PM me if you want some other info on the issues with this model of GPS.
I've used the 2101+ fairly extensively. As others have said, it's not the least bit intuitive. However, it is a fairly capable unit. If you'll be going back and forth between it and another nav system you have my condolences. But, if you'll be using it exclusively, with a few months practice I think you'll find yourself very comfortable with it in all conditions and won't even notice the poorly designed user interface.
Several years ago Trimble distributed a tutorial for the model 2000, which is very similar in operation to the 2101+. They included a rather nice interactive trainer which operates fairly well on older computers. However, I've seen it experience problems on some newer ones.
If you'd like to PM me perhaps we can attempt to figure out a way to get a copy to you.
Flying a GPS approach depends a lot on how much the company is prepared to pay for the right connections. For example a Bristow 332 wil give the GPS presentation on the HSI but the course to fly has to be set manually and the distance to go has to be read off the Trimble unit by the co-pilot. In China GPS approaches are not approved as yet but when they are Chinese 332s will already have automatic course setting and distance to go on the HSI. ie when you reach a turning point the Beam Bar rotates to the next course and the distance to go comes up on the HSI. Same Trimble, same HSI, just more interested greenies. Sit back, plug in the Nav function and watch your instruments tell you how they are doing the approach for you.