Mosquito Helicopter Forums
Inntec 800 reliability - Printable Version

+- Mosquito Helicopter Forums (http://forum.mosquito-helicopter.info)
+-- Forum: General Discussion (http://forum.mosquito-helicopter.info/forumdisplay.php?fid=69)
+--- Forum: General Discussion (http://forum.mosquito-helicopter.info/forumdisplay.php?fid=11)
+--- Thread: Inntec 800 reliability (/showthread.php?tid=8310)

Pages: 1 2


Inntec 800 reliability - Sigi - 03-07-2018

Hi XE285-Owners,
can you tell me something about the reliability of the Inntec 800 in your Mosquito?
How many hours have you on it? 
Has there ever been any problems and if so, which ones?
I would be particularly interested in a comparison in terms of reliability with the Rotax 912/14, which I know very well. Can one expect a similar reliability of the Inntec 800 in the XE285? Answering this question will decide,whether to buy a MOSQUITO or not (and I have the XE285 in mind ).
Honestly: I am alarmed by the accident recently in Odessa!
Thank you for your answers.


RE: Inntec 800 reliability - grevis - 03-07-2018

The most comparative Rotax engine would probably be the 582.


RE: Inntec 800 reliability - mgrindel - 03-14-2018

Lets put things in perceptive,
The Inntec 800 is a 160Hp motor designed to run at 8400RPM all day long and capable of delivering full HP all day long.
We never demand more that 45Hp from it and run at a constant 6000RPM.
You'll find your using around 1/4 throttle while flying, so if this motor does not outlast me then I'm not treating it well.
Keep it clean, check your electrics and plumbing, replace filters often, give it good fuel and high quality oil and it will give you many many years of faithful service.
Neglect it, feed it bad fuel and oil and.... you'd better practice your autos, you'll be doing more autos than you planed for...


RE: Inntec 800 reliability - Sigi - 03-14-2018

Of course I have to handle the engine well - that's a requirement. 
Nevertheless, again my question to the Inntec 800 owner: How many hours do you have on the clock? Did you have problems?
I ask that too, because many people warn me to entrust my life to a heli with a 2 stroke engine and I think only practical experience can convince me. ..


RE: Inntec 800 reliability - qwerty - 03-20-2018

(03-14-2018, 08:48 PM)Sigi Wrote: Of course I have to handle the engine well - that's a requirement. 
Nevertheless, again my question to the Inntec 800 owner: How many hours do you have on the clock? Did you have problems?
I ask that too, because many people warn me to entrust my life to a heli with a 2 stroke engine and I think only practical experience can convince me. ..
The 800 engine is designed to be used in a snowmobile mounted horizontal not vertical. There has been 3 crashes that involved the engine. No explanation has ever been given why or what went wrong.
If the post stating that the engine puts out 45 hp at 6000 rpm is true, it may run all day long, but it won't be lifting the mosquito with a 200# pilot in it.


RE: Inntec 800 reliability - mosquito - 03-21-2018

The Inntec engine is a two stroke fuel injected, oil injected engine and so can run in any position. 45 hp may be slightly understated for power but 50 -60 hp is the correct range which is still a 30 - 40% duty on an engine that can produce 160 hp. The NTSB is slow to release information and also to allow us to inspect the helicopter so I have been unable to find out the issues myself. We have just learned that in one incident it appears to be cold seizure where the engine was not allowed to warm up before take-off power was applied and caused piston scouring and eventual failure. I am waiting to hear more about the other incidents so we can formulate notifications for release.
XE285 hours range from 0 - 300.


RE: Inntec 800 reliability - qwerty - 03-21-2018

So on this site you state the hp at 60-70, while Marcher07(Mike Messex factory rep) states 85hp. http://forum.mosquito-helicopter.info/archive/index.php?thread-3353.html

The Mosquito website states 85hp. http://www.innovatortech.ca/Mosquito_Model_XE285.html

What is the correct answer?

Has there ever been any real dyno testing of the engines hp at 6000 rpm?

This info is online regarding the 285 crash in Massachusetts July 29th, 2015. https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20150729X23324


RE: Inntec 800 reliability - mosquito - 03-22-2018

The actual operational power will vary depending on what you are doing. Typical power usage during normal cruise flight operation will be 50 - 60 hp. Down to 0 during descent and up to 85 during max power climb out which is the maximum power the engine can make at 6000 rpm. That is the correct answer. And that is still barely over 50% of what the engine is capable of at its rated peak power of 160 at 8400 rpm.


RE: Inntec 800 reliability - grevis - 03-22-2018

Sigi, I cannot speak for the reliability as I am just at the stage of getting my machine running and solving the associated startup issues. I have also watched the forums with interest to see what feedback there has been from owners flying with the 285. There was one thread on the forum under 'Dialing in Fuel Maps' where owners were discussing the process of getting the tune right on their machines. You could have a look at that, otherwise I have not seen too much listed on the forum.


RE: Inntec 800 reliability - Sigi - 03-25-2018

Still no answer from  XE 285 owners... What does that tell me?
If someone has had bad experiences, he probably prefers to stay behind... Unfortunately! 
But those, who are satisfied? - why is nobody reporting??? Or are'nt there any  of them? 
Like I told  before: I know the specs of the engine, but above all I am interested in practical experiences!!!