Kinebohのブログ一覧

I'm suffered from self impulse buying of Radio Control Model Airplanes recently, making three successful bids in YaHoo Auction. 2 ARF(Almost Ready to Fly) with color film coated ones and 1 balsa kit, Tetra Spitfire Mk5b. Though I'm satisfied enough, I feel some stress to have been increased in working duties. Anyway, these consecutive holidays from tomorrow to 6th next month have fully occupied by newly arrived model airplanes. Now, my hobby has come into full-scale operation.

Judging from the original aspect ratio, I come to a conclusion that the scale should be changed a bit to obtain more vertical pitching stability, so the position of the stabilizer would be set at 60mm posteriorly. The original shape would be spoiled but actual performance would be far improved compared with the original design of this model. Any way, the result would be reported soon, as the most free time of these long vocation this year would be spent for the preparation of Sukhoi Su-31. 60mm extension of tail moment arm would take effect for stable vertical maneuver actions?

Peeling up of covering film on stabilizer made the pilot put in the condition of disable control, right side rolling tendency was considerably formidable as not to compensate by full aileron control leading to an emergency landing on the paddy with water filling. Thank to some compliancy landing surface, the damage was not found except some muddy wheels. Entering into the prepared paddy for rice planting with bared feet was not so uncomfortable, I should not be experienced if this affair did not happen. Because I have already found out the part that seems to come off on the stabilizer of Curare 60, I must take care of that and mend the wrong parts one by one. Rookie 20 has lighter weight and it was saved with no damage, but 60 stunt model would be torn in pieces in case of any accident like today's.

Tightening needle valve that had been modified on the tip works well as I imagined and screwing in of main needle valve shows the former valve had affected on the highest speed needle valve position. Hi-Mid and Mid-Hi, Mid-Idle and Idle-Mid smooth transitions could be obtained after some carefull and gentle adjustment on the fuel pressure regulator diaphragm control valve adjusting screw angular position, finally, 120 degree screw-in adjustment from the initial terminal angular position.

Curare 60 is now under fine maintenance for the survival flight since 30 years absence. The main wing has 5 servos for retract main gear, for flap, for spiller and for ailerons on both sides promptly. Old servos as they are, they move and work the jobs properly, so, no replacement of servos would be performed, I let them go as they are. Header pipe for YS 60SR is newly prepared because the old one fabricated 30 years ago was lost while the moving dispute last year. As it was flown at that time but with some complaints, I have no sense of fear for the first flight on this Curare 60 World Champion Model. Also, there is no interference in 2,4 GHz Radio, so no apology is available whatever destructive accident might happen while the flight of Curare.

The tightening mechanism according to throttle valve closure was modified and adjusted in OS 32F motor, by scraping the tip of needle valve to the oblique direction, the fuel flow at high speed would not be suffered from the special mechanism of the carburetor. This counteraction would establish the normal and smooth transition throttle connection from middle speed to hi speed under YS fuel pressure injection system. The same modification was also done on 25LA motor with 2B carburetor having tightening mechanism.

As my intention is to come back to F3A field as a contest flyer, I must make effort to carry out the speculation in a year.
Regaining the intuitions as a F3A competitor is not an easy task for me after 30 years of absence blanking, training myself and preparing the competition model airplane are the indispensable things to be achieved for the purpose. Now comes the interesting things would happen in future?