Latest Articles Tue, Aug 21, 18, 07:36:43

Monday, August 20, 18, 12:04:48, 20 Hours In Communications

The Carburettor Temperature Probe (CRB) is used to detect temperature drop in the carburettor. For successful ignition to occur, the air-fuel mixture has to be perfect and this can only happen at the right temperature. Now when fuel and air is mixed, the temperature inside the carb will drop dramatically and this is compounded due to external cold air and cold temperatures. Next thing you know – the carburettor is frozen solid – and this is not something you want to happen when flyin...

Thursday, August 9, 18, 10:07:26, 2 Weeks In Communications

The best EDM that money can buy in under ten thousand dollars (U.S) for 4 or 6-cylinder aircraft engine with transducers and all? The answer has to be EDM 790 manufactured by J.P. Instruments, U.S.A. It’s not just an advert claim, the Engine Data Management 790 system is truly the most advanced twin piston engine-monitoring instrument on the market. The EDM 790 has been TSO’s for quality and is rightly thought of as a Flight Engineer and Maintenance Manager that has your back covered...

Wednesday, August 1, 18, 13:12:01, 3 Weeks In Business

There was a time when portable watches used to be two inches in diameter and as much as three-quarters of an inch thick. These watches were kept in the pocket and taken out only when you needed to know the time. We all know how these pocket watches evolved, became slimmer and turned into wrist watches. The display gauges in the aircraft cockpit underwent a near identical transformation except that; on the evolution time-scale, they evolved nearer the electronic revolution so instead of becoming ...

Tuesday, July 24, 18, 08:56:36, 4 Weeks In Communications

The engine data monitoring system (EDM) 960 – the one manufactured by J.P. Instruments is available for all aircraft with 4, 6, 7, 8 or 9 cylinders engines. There are so many things in an aircraft that need to be monitored that in days gone by, there used to be a flight engineer whose job it was to keep an eye on the engine performance during flight. But the flight engineer was only human and during long flights, it was easy to not notice some things. But being a machine albeit an intellig...

Tuesday, July 17, 18, 08:02:26, 1 Month In Communications

For this article, we’ve selected to explain the working principles of the RPM standard sensor for the pressurized Bendix series (manufactured by Teledyne Continental Motors): The RPM sensor is connected to the magneto. To understand the sensor let us first begin with the “why” of things i.e. why is the magneto required in the first place is: A magneto is required to power the sparkplug. Every combustion engine (including those used in aircraft), have sparkplugs. These provide t...

Monday, July 9, 18, 11:25:44, 2 Months In Communications

Back in the days of WWII, aircraft cockpits had few dials (gauges) and each was connected to any individual part of the aircraft engine. As aeroplane design improved so did the number of gauges in the aircraft cockpit. Overtime, the aircraft cockpit got so crowded with gauges that it was impossible to keep track of all the information that was being displayed. The pilot would look at the gauges that were critical to the flight and just eye-ball the rest and hope for the best. These gauges did no...

Wednesday, July 4, 18, 11:20:27, 2 Months In Communications

Just so there is no confusion, the RPM sensors we refer to, are the ones used for measuring the RPM of the Bendix Magneto or the Slick Magnetos in aircraft. Some aircraft use Dual Magnetos but Bendix Magnetos and the Slick Magnetos are more widely used. One of the main reasons the Bendix Magnetos are popular is because they are easily overhauled and for any aircraft; this is a winning feature as it saves time and money. Amongst the most prominent companies that manufacturer highly accurate aircr...

Wednesday, June 27, 18, 08:45:36, 2 Months In Fashion

For the uninitiated, an oil temperature probe is required keep a check on the oil temperature. The oil temperature is vital to maintain its viscosity. A low temperature will make the oil useless whereas a higher than normal temperature will risk a whole lot more than just engine damage.An oil temperature sensor is inserted into the aircraft engine (please see latter part of this article on how to install the oil temperature probe), and the wires are connected to the oil temperature indicator or ...

Thursday, June 7, 18, 13:04:09, 3 Months In Communications

We present a comparison between EDM 730 and EDM 760 – both Engine Data Monitors are manufactured by JP Instruments; World leader in onboard flight instruments and aircraft engine data management systems.JP Instrument’s aircraft engine data monitors provide the pilots with real time information for aircraft. These systems constantly monitor the health of the aircraft engine and any anomalies are instantly brought to the pilot’s attention via audio-video alarms. This leaves the p...

Thursday, May 31, 18, 12:14:10, 3 Months In Communications

A CDT probe is used in aircraft as well as in ships. The ones used in ships are known as Conductivity, Temperature and Depth probe. It provides data on water salinity or lack thereof, it's temperature and water depth at current location.The CDT probe used in aircraft on the other hand, is used to measure compressor discharge temperature of the aircraft compressor and is therefore installed in the engine compartment just ahead of the inter-cooler. The CDT probe kit for the aircraft usually comes ...

Wednesday, May 23, 18, 13:03:02, 3 Months In Communications

Although it’s technically termed as aircraft manifold pressure monitoring, the word “pressure” in this case, is a bit of a misnomer. This is because the aircraft manifold pressure data is not about pressure but suction.The cylinders in any aircraft engine are like a large suction pump because the cylinders are constantly sucking air into itself. The MAP sensor therefore, if anything, is reading suction not ram air pressure. So at idle power your MAP gauge might display between ...

Monday, May 14, 18, 13:11:54, 4 Months In Communications

Fuel flow transducers came to be used in aircraft around the early 70s. Vibration of an aircraft engine. It also had to meet the important FAA regulation regarding blocked rotor pressure drop which could not be more than 1.5 times the spinning rotor pressure drop. Fuel flows can be measured via a conventional rotor-based fuel measurement system or, via the more modern fuel flow transducer - a digital-technology based system. The advantage of this new technology fuel flow measurement system is th...

Friday, May 4, 18, 12:28:05, 4 Months In Fashion

We all know that every combustion engine (except maybe in rockets), rely on an external air source for combustion. Problem for aircraft is that, the air entering the combustion chamber may not always have the ideal temperature for a healthy combustion.Cold air usually found at high altitudes for example, is denser than air at sea level. Cold air being denser, requires more fuel otherwise an air-fuel ratio imbalance occurs and the combustion will be erratic. If the combustion in an aircraft engin...

Thursday, April 26, 18, 13:07:59, 4 Months In Communications

This article provides you with relevant information to compare EDM 730 and EDM 830 aircraft engine data monitoring systems manufactured by J.P. Instruments.EDM 730From $1,557.00 to $3,965.00)Features:1. Colourful Graphics2. Larger data display for easy reading.3. Parameters in full colour4. Annunciation of exceedances.5. Less page swapping, more data per page.6. FAA STC/TSO approved.Package Form Factor:1. Easy 3-1/8" mounting at the front.2. Face is offset from centre to better fit in spaces wh...

Wednesday, April 18, 18, 13:00:51, 4 Months In Communications

If you are looking to upgrade your cockpit with a new EDM look no further than the EDM 830 manufactured by World leader in EDM’s – J.P. Instruments.For the next couple of years at least, the EDM 830 is going to rule the pack because the EDM 830 through its brilliant full-colour graphical LCD display totally revolutionizes the way aircraft engines are monitored.Despite its small size (probably the smallest aircraft EDM in the market), it easily packs more features, functionality, and ...

Tuesday, April 10, 18, 12:58:55, 5 Months In Communications

Based on the model of the magneto installed in your aircraft, there are several different models / types of RPM standard sensors for aircraft. The RPM standard sensors you select and use would therefore depend on the brand of magneto in your aircraft.Typical RPM standard sensors (as manufactured by J P Instruments) include:RPM Standard Sensor for pressurized BENDIX 1200 SERIES (JPI part # 10-05459)RPM Standard Sensor for pressurized BENDIX 20 SERIES (JPI part # 10-05460)RPM Standard Sensor for p...

Monday, April 2, 18, 13:04:22, 5 Months In Fashion

This question comes up often enough so we decided to write on how best to install the fuel flow transducer model 201B manufactured by J.P. Instruments in an aircraft.Orientation of the 201B fuel flow transducer:To start off and assuming you have removed the existing fuel flow transducer, hold up the new 201B fuel flow transducer in a horizontal position with the three wires up – because this is exactly how it is to be fitted. Fitting the fuel flow transducer any other way will lead to its ...

Friday, March 23, 18, 12:07:41, 5 Months In Communications

EDM 960 manufactured by J.P. Instruments is available four, six, seven, eight and nine-cylinder aircraft engines configurations. The EDM 960 is designed to be a pilot’s personal flight engineer – one that is always working in the background and constantly watching over the aircraft engine while the pilot concentrates on flying the aircraft.The EDM 960 actively monitors the aircraft engine four times per second and sound/ display a warning if any part of the aircraft engine does not c...

Thursday, March 15, 18, 12:04:56, 6 Months In Communications

The Compressor Discharge Temperature (CDT) probe (not to be confused with Conductivity, Temperature, Depth probe used in ships and also called CDT probe), is installed in the engine compartment just after the inter-cooler. The probe is installed with a #40 stainless steel clamp. A large clamp is supplied to fit around the air-port leaving the inter-cooler.A typical CDT probe kit from J.P Instruments includes the thermocouple type ‘K’ CDT Probe, a stainless steel clamp thimble, one st...

About Author
Joseph Polizzotto
Date Registered: Wed, Apr 13, 2016
Last Time Online: Mon, Aug 20, 2018
So far has created 75 entries.
jpinstrumentsart
J.P.Instruments was founded in 1986 in Huntington Beach, California, USA. J.P. Instruments is leader in aircraft engine data management systems and has added a whole line of reliable and cost effective aircraft instrumentation to its name.
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