Priming and Starting a Diamond Star DA40
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- เผยแพร่เมื่อ 26 เม.ย. 2020
- Detailed, step-by-step demonstration of how to prime and start a Diamond Star DA40, which is powered by a Lycoming IO-360-M1A fuel injected engine.
The tutorial begins by examining the engine controls and Garmin G1000 engine system indicators that are used in the procedure. Then you see a detailed, step-by-step demonstration of how to start a cold engine, how to start a warm engine, and how to start a flooded engine. Finally, the tutorial concludes with safety precautions and engine priming tips. After watching this video, you’ll know how to prime and start a DA40 engine like a pro. And you’ll know what to do when things don’t go according to plan.
I. VIDEO CONTENTS
1:09 Cockpit Orientation
4:03 How to Start a Cold Engine
7:32 How to Start a Warm Engine
8:46 How to Start a Flooded Engine
10:22 Safety Precautions and Priming Tips
II. PROCEDURES
A. COLD AND WARM ENGINE START
1. Prop lever...........Verify Full Forward (max rpm)
2. Strobe Lights (ACLs) ..................... ON
3. Fuel Pump ......... ON, Note Pump Noise
4. Throttle ....................... Set for Priming
(3 cm or 1.2 in forward from rear of slot)
5. Mixture control lever…...... RICH 3-5 sec, then LEAN
(For a Warm Engine - Mixture RICH only 1-2 sec, then LEAN)
6. Throttle ......................... Set for Starting
(1 cm or 0.4 in forward from rear of slot)
7. Toe Brakes ............................. Push ON
8. Verbal Warning .............. “Clear Prop!”
9. Ignition Switch ........................ START
When Engine Fires…
10. Mixture control lever............ Rapidly move to RICH
11. Ignition Switch ......... Release to BOTH
12. Throttle ................... IDLE (1000 RPM)
13. Oil Pressure. ...... Green (within 15 sec)
14. Fuel Pump ...................................... OFF
15. Fuel Pressure ........... Check (14-35 psi)
16. Alternator side of Master Switch .... ON
17. Voltmeter ....... Check, In Green (greater than 25V)
18. Warnings/Annunciators .............. Check
B. FLOODED ENGINE START
1. Fuel Pump ....................................... OFF
2. Mixture ....................... LEAN/Full AFT
3. Throttle ............................. Mid Position
4. Toe Brakes ............................. Push ON
5. Verbal Warning .............. “Clear Prop!”
6. Prop Area ..................... Verify CLEAR
7. Ignition Switch ......................... START
(Starter: 5 sec max, cool for 1 min; 6 attempts then cool starter for 30 min)
When Engine Fires...
8. Throttle ......... Pull Back Towards IDLE (1000 RPM)
9. Mixture ...... Rapidly Move to Full Rich
10. Ignition Switch ......... Release to BOTH
WARNING
Before starting the engine the pilot must ensure that the propeller area is free, and no persons can be endangered.
CAUTION
Do not overheat the starter motor. Do not operate the starter motor for more than 5 seconds. After operating the starter motor, let it cool off for 1 minute. After 6 attempts to start the engine, let the starter cool off for half an hour.
III. ABOUT THE DIAMOND STAR DA40
The airplane shown in this video is a four-seat, all-composite, Diamond Star DA40 XLS, equipped with a Garmin GFC 700 autopilot, a Garmin GTX 345R transponder, and a Garmin G1000 avionics system, including Synthetic Vision. Terrain and traffic alerts (TAWS, TIS, and ADS-B), a large moving map, and stunning canopy views provide enhanced situational awareness.
IV. RESOURCES
Lycoming - Tips to Start Your Engine
www.lycoming.com/content/tips...
Diamond Star DA40 Airplane Flight Manual
www.empriseair.com/flight-plan...
Diamond Star DA40
en.wikipedia.org/wiki/Diamond...
Diamond Aircraft
www.diamondaircraft.com - วิทยาศาสตร์และเทคโนโลยี
This tutorial is a godsend. I am IFR-rated with over 500 hours of flight time and still struggle with getting this plane started. When a grumpy instructor is sitting in the right-hand seat, the plane will never start, leading to "you're going to burn out the starter!". Funny how that happens. :)-
This is the best startup tutoriaI I've ever seen, I appreciate the different angles and the re-reviewing discussing the timing and what to watch separately, nobody else does that. Though I do wonder why for near a half million quid you'll need your own ruler and quilly to score up the throttle ;-)
Best DA40 startup tutorial
by far the best tutorial i've seen
Very clear and well done tutorial.
Great video.
I used to fly a DA20. It makes want to go back to flying. I really miss it.
Thank you!!
My experience with the DA40s starting is...
1. If it hasn't run at all that day -> Cold checklist
2. If it's run at all in the past 3-4 hours -> Hot checklist
3. If it recently was shut down in the past 1 hour -> Flooded checklist
Thanks man!
Thanks 👌🏾
in this day and time can't much of this process be automated.
Yell “clear” lol great video, thanks for sharing
Hey ! I love flying N294DS At my school. Had many hours in this aircraft
Excellent tutorial. I may try to adjust my current method with your recommendation. Till now, I've always opened both the throttle and the mixture full forward and then turned on the electric fuel pump, turning off the pump and then moving the mixture to lean and the throttle to the starting position. What benefit do you see in running the fuel pump while the mixture control is still in the lean position, is it to build up pressure in the lines?
What is not mentioned is Diamond very wisely fitted a Slick Start unit as standard. The Slick Start is an automatic ignition booster that increases the ignition voltage by approximately 300% during starter engagement and makes starting much less of a black art.
This was great, could you please cover prop lever settings ???
Hello,
That’s a great idea and we will try to cover prop lever settings in a post on our website.
In the meantime, here is some basic information:
*Prop Lever*
The Prop lever (also called the Propeller lever or RPM lever) has a blue handle and is located between the throttle and Mixture control lever. As you can see in the video, the Prop lever is in the full forward or max rpm position. As you pull the Prop lever back, the pitch angle of the propeller is increased and this reduces the propeller rpm.
CAUTION: The Prop lever should be moved slowly, in order to avoid over-speeding and excessively rapid RPM changes.
*Prop Lever Settings*
1. Engine Start
Prop lever…….Full forward (max rpm)
2. Taxi
Prop lever…….Full forward (max rpm)
3. Runup Prop Check
Prop lever…….Pull back until a drop of 250 to 500 RPM is reached then push to the full forward position.
Note: Check manifold pressure, rpm, and oil pressure changes as the Prop lever is pulled back.
3. Takeoff
Prop lever…….Full forward (max rpm)
4. Climb
Prop lever…….Set to 2400 rpm
5. Cruise and Descent
Prop lever……..Set as needed for the desired power setting. Check the AFM for the different combinations of throttle and RPM settings.
Note: Lower rpm yields better fuel economy. Anytime you change the RPM setting, the fuel mixture will need to be adjusted to maintain proper EGT temperatures.
6. Final Approach
Prop lever…….Full forward (max rpm)
7. Go-Around
Prop lever…….Full forward (max rpm)
Emprise Air thanks legend :),
Can you explain why we increase the throttle to 3cms when engine is switched off,
is it because throttle and mixture control is linked , so that when you increase the throttle and mixture to rich, then fuel flows, but if throttle was at idle and mixture to rich, then no fuel flow would take place, is this the reason we are doing throttle to 3cms forward ?
Also, can you explain why we are increasing little above idle when starting the engine ?
Also, why do we have put the mixture to full rich .. when the throttle is little above idle, the engine should be receiving air and fuel sufficient for running ?.
Thanks
Hello,
There is no mechanical linkage between the throttle and mixture controls, so that's why there are two separate levers. The throttle lever controls the amount of air entering the engine. Technically the mixture lever only directly controls the amount of fuel entering the engine. The two levers, each set at the right position for right environmental conditions (Density Altitude) and for the current operation (cold/hot/flooded start, takeoff/climb/cruise/descent, etc) work together to get the right fuel/air ratio. Some aircraft, like most jets, turboprops and the DA50 with the Continental diesel engine, have FADECs that control everything with one lever via computer.
For engine priming, the throttle is set 3cm forward from the rear of the slot because the engine needs some air added during the priming process to get the fuel/air mixture initiated. Then for starting the engine, the throttle is set to 1cm forward to enrichen the mixture a bit (less air available) before turning the ignition key. Once we crank and the engine fires, we have to put the mixture initially to full rich because the priming process put only enough fuel in cylinder heads to start and run for a couple seconds. A full mixture is the starting point for a running engine. Once the engine is running on its own, the throttle is reduced to high idle and the mixture is leaned back for the density altitude you're at (so the plugs aren't fouled/carboned up during taxi).
Hope that helps!
I flew this plane before and it had a fuel pressure issue
In a car the priming is done automatically by the ecu. Why isn't that feature available in piston engine airplanes?
It is for some. Diamond included, but not with the Lycoming engine. Their FADEC controlled Austro engines have this capability. Interestingly, they were originally automotive engines.
@@Outworlder which planes have auto priming
@@dranzergigs8333 FAA aircraft certification means technology adoption is slow.
Be nice if us viewers had a clue about what engine this plane has.. These turbo diesels dont need priming just glow plugs.
This aircraft is fitted with a Lycoming IO-360 …….so not a turbo diesel.