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I have a collection of useful links at
http://beardsell.com/flying/yak/

From hundreds of hours of Yak-18T flying I have carefully modified and re-worked a Westernised checklist which I obtained vi ...

Thanks to Dennis and Doug for very useful replies which I have forwarded to my engineer for comment.

Ah, Richard, yes. But no one wants to do that as the composition of the brake pads is, err, unknown, shall we say?

The engineering workshop which maintains my Yak-18T recently purchased some brake pads to fit my aircraft and others. They are at least 1mm too thick. They are finding it impossible to fit the brake p ...

Depends what you mean by "proven".

I am trying to buy replacement bulbs for my 18T. In particular I am frustrated at the beacon bulb blowing at least every 50 hours. [I am aware I should also be investigating possible excessive vibrati ...

Not to mention a big dollop of wishful thinking.

The -XDK suffix I have not seen before. Although the Western flange and the fancy paint hob is, I know, available from all the regular places, the "-XDK" designation is, I think, nothing mor ...

I am unsure which of us trying to teach the other's grandmother to suck eggs. Whatever the unit is it is not mm/Hg. It would be mmHg. That or cmHg. And this refers to the height of the column in a mer ...

This over-square under-square stuff is just short hand for a rule of thumb that works with some engines and with some systems of units. There is nothing that says revs should be measured per minute (c ...

How much? What diameter is the prop with these blades? More or less than original? What are the overhaul hours/years on these blades? Are they legal to fit to EASA (restricted-)CoA certified Yak-18T? ...

If I had known about your chart I wouldn't have had to do anything at all!

Following on from the "low boost" discussion, I have added a few columns to the table provided in the M14P maintenance manual and that enhanced table can be found here: http://bit.ly/M14P-fu ...

Phil, if the crankshaft is turned 720 degrees every piston has gone through each of the 4 cycles of a 4-stroke engine. OK, in various orders, so double it, if you really must. 1440 degrees, or 4 ful ...

Didier, thank you.

The NOTAM saying there was no avgas at Gap-Tallard aerodrome expired yesterday and was not renewed. Nevertheless, they still do not have any.

Yesterday I asked to see the sp ...

But is the 88/97 Mogas pump at Gap-Tallard aerodrome better than the 95 octane cutoff you quote. 88/97 is MON=88 RON=97 octane. I think also that when the M14P manual says "B91/115 at least 91 ...

So the sump drain device is not enough, in the T6, by itself, to prevent hydraulic lock?

I haven't seen the T6 guys. do they still swing their props before starting?

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This subject has been done to death, so it seems, and I think I have read much (maybe all) posted here about mogas in recent months. Sorry to open it up again.

I am tempted to put mogas into my 18 ...

Hi Didier,

look at the photo at the bottom of my previous posting showing the installation in the 18 T. The pumps are Pierburg 24 V and 0,5 bar, ~€ 90.- . The whole set is homemade and sits under ...