Preparation for the Old Timer & Golden Age Meeting

Film coating process has been over on "MK Star 06" before long. The moving elements of 3 Golden Age are already prepared shown in a picture. The important information about the on board switch, free current flowing is not always proved especially if 3rd party parts were invited. So, I made up my mind to fabricate switch modules with proved 6 position Miyama toggle switches found in my junk box, NOS. Because, I prefer the fundamental reliability to  light weight at all under the use of gas model's combustion crank shaft knocking vibration. The report in the WEB site said, miss-contacting on the switching terminals might be the reason. Toggle construction with 2 ways of on/off circuitry is for safety proof.
Any way, some desperate efforts were required to make small model airplanes to the appearance form like ARF kits made in P.R.China. The price of them are not high but opposite.
From now, servos burdening, linkage setting, motor mounting and gears setting are waiting for 3 airplanes. Little period of time is remains before "Old Timer & Golden Age Meeting" at Uji Kyoto. Make myself haste, go!

Super Tigre 71 & OS 40 PS 15320

Some Yahoo Auction conscientious seller provided me of an ancient Super Tigre 71 motor at reasonable price the other day. It has no inconvenience such as clogging, lasting in bearings also in a piston ring portion and lance chest nut marks by a layman. It has been kept in good circumstance by enthusiastic mania with love. A taller plug terminal reminds me of many good memories in my younger period of life. The scavenge system is not a sophisticated one like Shinyure design, but conventional self scavenging one  with reflection plate on the piston top surface.
This motor would be set on a F3A stunt model, "Stock" designed by Mr. Yoshio Akizuki 35 years ago who was my most intimate friend in the field. He is also an  advanced researcher in GFRP propeller, actually he provided his products.
Though I have never met for long time, our friendship would be immediately remember again. He must be a good adviser if I might go into F3D world.

By the way, I also got an another motor, OS 40 PS that was specially produced only for F3D competition, 40 Pylon Racing, tens years ago, the factory designer had been already resigned because of age regulation in the company.
It was exhibited as NIB condition and at cheaper price with some reason. As it was provided as a established kit, including Tuned pipe, metal graved one piece beam mount and a machined spinner.  So, without important other goods was the reason for cheaper price. No anxiety exists, because my junk box has a Tuned pipe for F3D.
Finding out some extaordinary tight piston and cylinder fitting at TDC, Mr. Haneda replied in telephone, it's a normal factory setting condition, turning drive plate by finger power is impossible like a car racing ABC motors. Higher combustion temperature at higher rotation might cause more thermal expansion at TDC portion? This is why the tighter P/C fitting design for OS 40 PS 15320 is invited that rotate over 20,000 RPM?

"MK Star 06" almost completed

The general balsa figure of "MK Star 06" was almost completed yesterday, main gear and nose gear are not yet. Film coating procedure would be done on 3 small model airplanes, residual ones are "MK Super Tiger 102" and "PILOT Fighter". There are plenty of rolled films from some closed R/C shop last year, so any color combination will do as my choice.  In order to obtain the indispensable visibility from a distance about 150 m, some fluorescent color would be applied on main wing upper surfaces similar with the Rising Sun flag pattern.
I'm now considering about the power source of Star 06, Enya 09-4, OS Max 10 FSR or Cox 09? If Cox 09 is invited, either Medallion or TeeDee, exactly the same procedure done on Medallion 15 would be induced, carburetor holder one-off hand making with lost-wax casting method.
Any way, there are several high walls in front of me to be overcome, desperate effort would be exerted dreaming of being an applicant for "Old Timer & Golden Age Meeting" held at Uji Kyoto in this Fall.
To tell the truth, I have no air-conditioning system in my Hobby room, how come working at over 36 degree Celsius temperature atmospheric condition?

MK Star 06

An affirmation program by Lou Tice is lasting in my mind for as long as a half and one month and my emotional condition has been changed into better gradually.
Stable and calm daily time passing is comfortable for me for these 5 days, the absence of my sun in working place might be a reason, because is now making a trip in Hokkaido riding his favorite BMW Bike. But, noisy and restless working time would start from this Friday, awful and miserable so much, it's a secret, remember?

I'm now concentrating on Star 06 construction. Super Tiger 102 and PILOT Fighter were almost done leaving some film coating procedure.
The airfoil shape of Star 06 is symmetric one also with zero degree dihedral like a Pylon Racer, in addition full planking construction, that is the most unlikely for this size,  is invited in spite of 40 gr weight addition.

3 Golden Age model airplanes

3 Golden Age model airplanes are now under construction. "Super Tiger 102", single channel controlling trainer designed by Jumpei Kato in OSAKA who guided me in the field for as long as 50 years. "Star 06" also single channel airplane done by Masahiro Kato, the representative person in the Golden Age and the former champ, who appears in U-Tube recording a film in '50. It was flown by me but was destroyed at the first flight because of lack of rubber power for Escapement mechanism, too much signal application was the reason, remembering, the motor was LM Cox Tee Dee 049. Though the main wing of 09 size planes would be make use of that of TETRA Rookie 10, asymmetry airfoil, it would be newly reconstructed from the beginning also aileron system would be equipped.
"PILOT Fighter" single channel also, that was manufactured by myself when I was 10 years old, but it was destroyed by some unexpected accident before taking off.
These model airplanes designed over 50 years ago are preparing for "Old Timer & Golden Age" meeting held in Spring and Autumn every year at Uji Kyoto. Suppose, if they are build up from some Kit condition, it's not difficult tasks for me, but cutting a piece one by one from scattered scrap balsa takes time and desperate efforts. I'll do that to be an applicant with at least two of them.　

Another Medallion 15

Being gaining momentum, did I it, exactly the same manner was done on another Medallion 15 also obtained from Yahoo Auction. Needle valve system was my own modified one like a former Medallion, 10 gr weight reduction is worth doing for relatively smaller model airplane. Generally, main needle angular position does not change so apparently if the break-in procedure had been done adequately and both the propeller and the fuel are not changed into another ones. So, the needle valve I have applied here is not always inconvenient modification by a selfish user, any way the result of these modified LM Cox Medallion 15 R/C would be reported very soon.

LM Cox 15 Medallion throttle valve set in position

Light metallic material casting has processed yesterday and fit in position to set up OS carburetor as shown in the photos. Thanks to the precision casting technology, it fit as desired. Thin paper would be inserted on 4 fitting positions, between crank case and carburetor holder F/R, crank case and carburetor and rear cover plate.
Though I planned to make use of the original needle valve assembly set in 25LA, 10gr weight led me to set a needle at the conventional position as a photo. 2mm pai bis was utilized with sharpening on tip. Air leakage checking would be done on the test running test. Tornado 9-5 or 8-6 propeller would be used for the test running. Depending on the power at that time, one more Schnurle port would be added as TeeDee model by grinding the internal surface of residual position on the cylinder. Compression ratio might be changed by making the head bottom surface down?
This motor, LM Cox 15 Medallion R/C would be mounted on "Super Tiger 102" single channel control model designed by Jumpei Kato brother of former Champ Masahiro Kato.