206 Question

[Puddle Jumper]

Was looking over the old 206 manual and managed to stump myself. It is in regards to having the same type oil in the engine as in the transmission. I know that the reason they are the same is due to the fact that the freewheeling unit is fed from the transmission and if it ever leaked the transmission oil would mix with the engine oil. However the question is why would they feed the freewheeling unit from the transmission to start with? And why not use the engine oil? The only thing I could come up with is that it either deals with the temperature of the oil or the pressure. Anyway I was wondering if anyone has the answer. :unsure:

 

[407 Driver]

It could be that when the Donkey quits, the ENG Oil press goes to "0", but one would still want a finely lubed Freewheel as you descend to the earth on nothing but autorotative energy through the M/R and Transmission.

 

[Puddle Jumper]

Thanks 407! I believe that the lack of sleep yesterday allowed my mind to wander too far off track. I knew the answer must be something simple. Thanks once again!

 

[cyclic monkey]

407 Driver, thank you for your explanation, and for limiting the references to farm animals to a minimum.

This photo has been seen here before in regards to C of G questions.......however, I think it may be appropriate here too.
My question for you, old wise and curly master, is whether this Donkey has "quit", or is it just "freewheeling" at this moment??

 

[cyclic monkey]

..............and Puddle Jumper, please be careful.

You must NEVER let a lack of sheep in the recent past cause your mind to wander !!

 

[airsides]

hey, does anybody want to give me a c of g config from the flight manual for a 206b?

just thought i'd try.....

 

[407 Driver]

Helicopter Primate, excellent picture.

This Donkey has not quit, it is merely resting. It has become inneffective, as it's 4 main drive-hoofs have become disengaged.
An Interesting question comes to mind, since the main drive-hoofs have disengaged, do you turn off the Donkey (with an AK-47) or leave the donkey at idle, ensuring the T/R control remains ???

What do you do? 😀

 

[cyclic monkey]

It would be interesting to know the internal temperature and pressure of this particular Donkey during this disengagement.

I suspect this would be affected by the Donkey's age, and Total Time in Fright.

To assess this Donkey's age, may I suggest an AME with experience on foreign models such as this (i.e. Magseal) should look up it's date !!

 

[407 Driver]

Mag, would you be so kind to look up it's date? ...or is it your date?? 😀 😀

 

[CTD]

It appears the two aft drive hooves are not free to freewheel, as they are partially impeded by the rear attachment strap. This can be serious, as it interferes with the flow of exhaust from the rear of the animal. Don’t stand behind it when you let it down.

 

[100ft]

Recently I had opportunity to see first hand an unrelated but nevertheless interesting maintenance issue arise on a 13000hr 206b3. Inside the console btwn the frt seats was found the wet line feeding the torque meter almost completely worn through at one point by a neighbouring wire harness. This particular machine has little in the way of unique add-ons and is fairly 'standard' in equip layout. A chance decision to re-arrange some radios led to this discovery. Is it a known problem to have these lines rupture due to external friction wear or more likely a rare phenomenon?

ps- cyclic monkey i think your ass is too small :huh:

 

[MagSeal]

the only true way to determine the age of this beast is to lop off it's head and count the rings. Unfortunately this will undoubtably enrage the animal rights activists. So, to protect the endagered animal, I have devised a new taste test. One long lick across the vermins backside will give immediate impressions as to the approximate age (or freshness, you might say)

 

[MagSeal]

100ft...

hope you guys were moving radios to the proper place according to the drawings. I remember getting quized on an audit as to why radios on one aircraft were not located in the same place as the next, and was told to research the drawings and ensure they were in the right places.

 

[sharky]

Looks like the donkey may be u/s; beneath it appear to be numerous 'freewheel unit chips', and therefore the donkey was taken out of service.

 

[100ft]

Magseal,

I am neither professionally nor legally assoc to this particular machine. Interesting info from you though...