ENYA 45 CX

I happened to bid Yahoo Auction on ENYA 45 CX because of cheaper price at 2,800 yen, with no competition I got it, looked dull and must had been worn out, this is why the seller set the cheap price, but I knew this motor was used in some very good manner keeping good compression with no scratches on the piston side wall and cylinder wall as a matter of fact, in addition no crank case distortion was observed. A fuel narrowing down closing G type carburetor is equipped.
Distorted screw heads holding carburetor on the case were corrected by hand hummer hitting and the crank shaft supporting main bearing, #6902 was replaced into new one, a rear cover plate gasket was fabricated and of course head and piston top piled carbon was cleaned thoroughly. A suitable genuine muffler in my junk box was applied in position and this motor would be operated well, I have a confidence on this lovely one.

Countermeasure for an inconvenience

As mentioned before, countermeasure was considered to prevent the fuel from coming into muffler through the muffler pressure line, one is setting an orifice in the line and another is make the exit point of pressure line in the fuel tank positioned much more backward in order to avoid centrifugal effect while a spinning maneuver.
The diameter of the orifice hole must be well considered, because the muffler pressure line would not be disconnected when fuel refilling, air ventilation must be done well but fuel must be prevented to flow so freely, several experimental trial would be required. This kind of researching and developing procedure should be performed by the factory manufactures, don't you think?
Their negligence of duty makes me busy, how come? My precious opinion about this inconvenience would be discerned by the factory engineer and would be reflected onto the next production, because the place I'm flying my airplane is the same as they do, their test flights.

Pegasus fell down

Pegasus 40 fell down today by my mistake, relatively low altitude and unexpected motor stop after spinning maneuver in the worst timing, should I control it by aileron, but I did it by elevator control. Fair judgement in the critical moment separate life and death, though I have some self-confidence to avoid any accident, actually I could not!
Motor stop phenomena has been repeated after spinning and 1/4 bulk of silencer was filled with fresh fuel, how come?
When spinning is performing, the fuselage is rotated and twisted with the center of gravity point, some centrifugal force is applied at the fuel tank position then fuel goes to the muffler through muffler pressure tube line resulting new fuel fulfill the muffler.
Checking the muffler pressure nipple, hole size of OS 46LA nipple  is larger than recent ENYA. Is there any possibility of motor stop that fresh fuel flowing backward from fuel tank to motor muffler inside?
I should know the reliable conclusion about this bizarre phenomena that led my Pegasus to destroy. Trial experiment must be performed by myself ASAP!

ASO 50th Anniversary Concert

We enjoyed ASO 87th periodical concert last evening, in addition it was a memorial one to be 50th Anniversary concert for Ashiya Symphony Orchestra. Prof. Takuo Yuasa was successfully invited as the conductor at Hyogo Performing Arts Center Grand Hall.
The program yesterday were followings:

Ballata Sinfonica by Akira Ifukube
Allegro Capriccioso
Andante rapsodico

Ellora Symphony by Yasushi Akutagawa

Symphony No.5 Op. 100 by Sergey Prokofiev

All of the program were performed well without any failure as usual and the second program was so outstanding as to surprise us utilizing his own unique expression method.
The contents of all the program were so enriched as to exhaust their energy and some additional performance was a most unlikely desire.
Their performance skill is remarkably making progress year by year, it's easy to imagine that how much effort were done to do that, remembering that they are not a professional orchestra but only an amateur group, how difficult it would be to keep their own self distinction at high level position.
I'm looking forward to meet with them again in coming Autumn, at 88th one.

Solex 34 PICT3 mixture control

Realized I this morning that I have been influenced too much by the description in some article about the adjustment of Solex 34 PICT 3 carburetor, especially on the adjustment on the mixture control screw position. 2 plus 1/2 opened angular position from the closed terminal point is the opinion to be rely on, and slightly opened would be favorable setting so written. I have been some doubt about the opinion with suspiｃion, because the fuel consumption amount is too much for 1600 cc motor.
So, attempted I this morning some experiment to seek the suitable angular position of fuel mixture adjustment screw(smaller one on 34PICT3) ignoring all the existing concept, just paying attention to set it at the most stable position.
1 plus 5/8 opened position from tightening is acceptable as a matter of fact, the idling sound became stable and also variation disappeared, in addition the smell of exhaust gas changed with no irritating stimulus smoke.
As I have an experience on WEBER side druft 40 DCOM carburetor set in TALBOT PEGEOT 205 Rallye by the manufacturer, single carburetor adjustment is not so difficult task for me, just the key to it is detecting the mixture now is rich or lean at idling speed!.
Deeper consideration about this phenomena led me a conclusion that the former user of the carburetor must have closed the screw with some violently destructive torque power and the needle hole must have been widened with distortion.
This is why the adjusting & setting position of the mixture control valve screw closure point had been moved at more closed position, am I right?
Align the surrounding condition is the first, otherwise, the conclusion would be changed in Scientific field.

Late

Once going out to the flying place yesterday as usual, weather forecast this morning telling bad weather condition prevented me from proceeding more on the way, Thundercloud and Tornado is causing strong winds forced me to return back, though the training in such an unusual condition might be necessary, because the D-day would not always be fine and suitable for the flight.
Anyway,I stayed in the working room and exert myself in maintenance and  precise adjustment in the airplanes.
Though Saturday as it is today, I went out for the flight, one person had come already at 7 AM and talkative another one came 30 minutes later than I. I could cover 3 flights and coming to the finishing degree of adjustment "Hornet" & "Pegasus", YS 45FR motor had stable performance that is suitable with contest application, OS 46LA motor in Pegasus operated well with 4 cycled rotation till the end of P-17 maneuver.
Smaller but interesting motors are waiting for the actual flight test, so "Star 06", "Star 15" and "Pilot Junior" have to be completed ASAP, because they are thrown away long time.
I happened to listen to the NHK Education channel this morning on the way to flying place by chance, I could come across with very useful and worthy program, the lecture by famous professor, Hiroaki Suga, PhD. who is specialized in the sophisticated science division, Research Center for Advanced Science and Technology Tokyo Univ.
He is also a creator of  "PeptiDream", bio-venture company based on special Peptide creative medicine, very few successful one that has an origin of the institute belongs to the University.
In his lecture he stated a famous proverb by Shoin Yoshida who is Edo period leader of those days, "No success is desired for the person without dream.", because such a person has no ideal goal so without goal, there exist no planning without setting the goal, no planning does not create attitude, so without dream no success is desired. I was moved so much to hear that, as for me, almost of dreams have overcome already. How shall I do in future and now?

Favorable YS45FR & ST40X

Remembering YS 60 FR period of time 30 years ago, the setting the condition of YS 45 FR has almost completed including tuned pipe extension length. Adjusting the regulator angular position at the nearest point to the over closure while middle speed rotation, the transition came to smooth attitude, from lo to middle and middle to hi. This position is much closing in rotated angular position than predicted.
Now Chinese made ARF trainer model "Hornet" has enough capability to play and to draw F3A-P17 pattern maneuver without any stress.
Italian made beautiful ancient gas motor, Super Tiger X40 arrived at my hand from Yahoo Auction at reasonable price. It's a matter for surprise that I can obtain a superb NIB condition item 50 years later from the production. The anxiety that anything might be lost after long period of time interval, some small but indispensable part such as a side pull cotter pin to hold the carburetor body on the rear cover plate, careful checking through the transparent plastic envelope(looks original shield)  proved that all the necessary parts are included. Instruction paper and certificate also.