Polyester Glass Fiber

Thanks to the application of Polyester Glass Fiber processing on the stabilizer for YOSHIOKA Sunday Alpha 50, my initial purposes to reinforce and to keep flatness were established, though some weight increase might happened, torsional deflection strength has been increased enough to endure the forces while drawing maneuvers. Bad memory of vulnerable Flying-Tail construction leading to complete destruction in YOSHIOKA Pegasus Acro might obliged me to do that.
Anyway, PGF reinforcement in balsa wood construction is very effective to model airplane in necessary portions such as engine mounting construction and wing connecting surfaces.
Lighter weight and enough strength are the conflicting issues at all even in the actual airplanes, recent accidents happened on me forced to chose the latter item, as a matter of fact.
Following the saying by Mr. Yojiro Akiba, not a single anxiety in F3A model airplane should not be existed.
I just remembered the 3 bad items.
1. Unreliable Radio
2. Bad habit airplane
3. Motor that has stopping tendency

OS 55 AX motor

It was mentioned before that OS 55 AX motor was obtained in NIB condition, I imagined to treat this one so carefully as to keep maximum power and the longest life. As we know the initial stage of operation in break-in step is very important to finish up all the moving parts reducing slipping resistor utmost, avoiding unnecessary wear causing backlash. In another words, in the motor construction, all the slipping surfaces should be coated with adequate backlash spaces. Of course, the most important is the finishing work of Piston and Cylinder especially they have no piston ring but ABC or ABN interrelationships. OS 55 AX has ABN construction with marvelous finish supported their long lasting technology.
In order to reduce the slipping heat on moving parts such as piston to piston pin, big & small ends of connecting rod, operative road by setting smaller propeller is effective. Another way for this purpose is reduction of compression pressure by inserting a gasket between cylinder and cylinder head. 3 pieces of 0,30 mm thickness aluminum gasket would be prepared and be removed one by one according to the stage of finishing, but for this motor a few of them might be remained, because the operating noise is too high and too noisy as to make me feel uncomfortable.
A pressure nipple would be set on ordinary portion just behind the front crank shaft supporting bearing for YS fuel pressurized regulating system as usual.
UTube shows that Curare 60 is easily pulled by OS 55 AX motor, so it must be possible to draw F3A maneuver patterns relatively easily by means of YOSHIOKA Sunday Alpha 50.

A work yesterday

The work on a radio control model airplane was relatively pretty yesterday.
Main wing center Polyester Glass Fiber enforcement, stabilizer enforcement were performed. Sandwich construction with 2mm thickness soft balsa invited distortion however hard I might try to correct into straight, soon after a while venting phenomena could not be eliminated as a matter of fact, this is why I applied the reinforcement and keep it on flat standard plane till polymerization would be over, for 2 or 3 days.
I could bid OS 55 FX motor at cheaper price from Yahoo auction, then the regulation in Cassiopeia Stunt Competition could be covered with this motor.
Without a tuned pipe, this one would pull up enough into the sky possibly drawing F3A maneuver patterns with YOSHIOKA Sunday Alpha 50.
Obtaining OS 55 motor, distinctive motivation to record some favorable result in the contest comes out in my mind.
As the meeting would be held in Autumn, somewhere not decided yet, my training on fingers would be in time for D-Day.

Favorable weather condition

Revolution of the seasons into good condition for working in my place makes me do much tasks these days.
Final finish of MK Star 06 would be done today for the preparation to take part in the Old Timer & Golden Age Meeting holding the 8th Sunday in April at Uji Kyoto.
Glass fiber cloth processing with Polyester emulsion, tail stabilizer's hinge groove forming and detailed works on Sunday Alpha 50 would be done.
In addition, brake system overhauling procedure on Super Beetle might be proceeded if possible. Thanks to some desperate effort to adjust mixture control screw on Solex 34 PICT3, 1600cc AD motor is in fussy condition including cold starting scenery.
After the brake work, wheel alignment and axle constructive geometry setting are waiting as a matter of fact, they should be digested before the hottest season.

Computer system in TOYOTA Caldina AZT241W

Supplementary charging following a circuit cutting caused rough idling condition in TOYOTA Caldina AZT241W model. But, a few kilometer running recovered stable idling.
Immediately after that, such kind of inconvenience, several countermeasures came up in my mind, also remembered I the abominable passed when I was a owner of OPEL B-Vectra which had been a recognition of disorder.
If the trouble is brought by irreversible disorder of main parts, motor itself, trans-axle or main computer system.
Some of the sensor might be the reason, such as Crank angle sensor, air flow sensor or O2 sensor.
Some capacitor might have puncture problem in the main computer or trans-axle one. Not a few memory on B-Vectra reminded me in my memory.
Driving on my way home, the idle inconvenience became disappeared gradually, and when I come to the half way home, the anxious phenomena was wiped away like nothing happened.
Probably I guess that the initialized computer system must have acquired the circumstantial conditional information and it had settled in the most favorable situation, it took several minutes to study new atmospheric condition under actual driven phase.
My anxiety immediately after connecting the charged car battery has eliminated thoroughly. My experience was a really some cold sweat at all.

Polyester resin processed

Polyester resin was applied on wooden radial mounts fabricated the other day for the purpose of enforcement and fuel prover. As a matter for regret, it was polymerized in a Yakult empty bottle, and the miserable result was invited, the plastic bottle was melted down and the material was scattered on the plate, the phenomena happened at the final stage and the affair did not get cherished. Special smell of Polyester solvent was experienced two years ago.
Main work for the enforcement at the main wing center region with glass fiber cloth is remained for the task tomorrow. YOSHIOKA Flash Pro 45 and Sunday Alpha 50 are waiting for the work.

Difficult partnerships

I met one of my intimate friend who is a representative of the trading company and I asked to play a part of negotiation to set the relationship with mine better.
Almost one year has passed since a big quarrelling affair happened and no communications between her is established, she decided not to speak with me at all.
That is the only inconvenient thing for me now, the time is come to compensate the lack of good relationship with her.
He promised me to do something to make efforts to try to rebuilt good emotional intersections with my family.
Also, he had exactly the same experiences with his before long, it took him also to repair relationships with his, he had also came to almost divorcing.
I must be instructed his precious know-how to do that.
As for myself, I'm making efforts for the purpose by studying Functional Brain Science and Psychology, Alfred Adler's method, Dr. Tomabechi and Lou Tice Coaching field also.
Recently, I'm surprised to know that most of  my friends has the same kind of troubles with their partners.
Much more investigations on this point should be done as my important life work.

Cherry in full bloom

It took me 4 hours to walk about today, now is the precious period of time for Cherry Blossom covering two railway stations.
Osaka Castle garden in full bloom was enjoyed first and Nakanoshima Dojima was the secondary visiting, both of them were the best timing to be watched around the Cherry flower at all, also climate condition was the best in warm atmosphere.
Anyway it was far better athletic training than staying at home for my hobby, model airplanes construction.
Walking for long distance invites some knee joint pain on both side, it warns some over weight of my upper body, I'm pulled too much onto the ground by the gravity, that's the reason, reduction of body weight is the first. Too much eating reduces my span of life. People who dies of overeating exceeds in number to those who dies of starving in the world.

Wooden Radial Mount

A few number of wooden radial motor mount have fabricated for YOSHIOKA Sunday Alpha 50 in order to make use of this new one as the actual flying motor test bench for my several piled stock. Situated the fuel tank just under the CG point as it is, the volume was increased for the sake of 60 motors. Expanded wing span to 1600 mm and 40 dcm2 area accept some 60 class motors with adequate power support.
The shoulder style designing and larger displacement produces the degree of freedom to adjust the CG point, moving the battery point, anteroposteriorly. 350 to 450 gram difference is available.
As a forcast after several motors trial, YS 45 FR, YS 45 FS, YS 60 FR and YS 60 FS would be remained, because the YS Regulator System is the only one that I had been getting accustomed as long as 10 years intending contest application.

KAVAN caburetor

KAVAN old German carburetor that had been thrown away for long time was disassembled and serviced to be operated again under the fuel pressurized condition.
Though I do not have urgent necessity, it was performed as a good reason to escape behavior, modelers have usually this kind of tendency.
Fully clogged throttle valve required dropping them in to CRC 556 all night long, piled sludge and vanish were cleaned thoroughly into smooth movement condition.
Soldered fuel supply nipple refused to be heated over 182 degree, and it required  relatively long period of time, solvent immersion time.
Drum lower throat is widened by grinding for the purpose of fuel pressurized conditioned use under Perry pomp or Robert's Pomper system. The opening size is not enough for YS Regulating system.
The machining technology in Germany had been excellent in this carburetor in this period 45 years ago and it's designing mechanical construction is available even now. The tolerance setting is high revel at all---remembering the experience to have disassembled a famous mechanical silver-salt camera, Leica M3 model 20 years ago, it took me all day long from early in the morning till late at night to do that also re-assembling with fine shutter and distance meter coupling again.

Worthy genuine parts

Once I was an user of SUBARU Legacy B4 6 cylinder 3L model, I had experienced the lecture on front transverse link rear cracked bush, just torn and destroyed, the factory engineer insisted to replace them into the original genuine parts however easily it broke, with no counter measured parts.
Judging from the concept that the axle compliance balance is established by the combination with all the parts contributing as a buffer affecting parts. Now I can realize why the engineer insisted to replace the originally certified genuine part however hard I might have been the lack of the performance.
Even a single part replacing of compliance bush into another one such as harder one means that of completely different condition in which the researching and development are not well tested and not established as in safety.
On the other hand, the finished and established condition proved by the factory researching and development is the only one to be relied on by the others. No permission is allowed to change in to any way, it is regarded as a Biblical spells.
Once a technical chief engineer said to me, "Don't make little of researching and development engineers in the manufacturer, we are making efforts continuously for making progress.".
This is why the third party parts with lacking some enough researching and developing should not be applied into your car, but the only genuine part is reliable. 

The concept of Counter of the waves

The affair to have replaced the motor mounting parts in TOYOTA Caldina AZT241W revealed the direction of it's researching and developing. I didn't understand why the vibration canceller weight on every parts, 4 in total. Rubber material is interposed in the weight and sizes are different.
D4 motor and excellent trans-axle are mounted on the body through 4 mounting support parts, shape and construction differ each other.
I thought their constructions are so designed to play a simple buffer action physically, I have realized recently my simple imagination was not to the point.
The theory of the isolation structure utilizing some weight for vibration wavelength cancelling concept is popular in the building construction for the Earthquake countermeasure.
Exactly the same principle is introduced in the vehicle's axle designing, the weight of the motor and the trans-axle around 200 kg is mounted on the vehicle's body with vibration buffer effect and also they are utilized as the vibration cancelling weight following the upper concept.
The fact that the feeling of pushing up at rear portion also remarkably reduced after replacing motor mounts in Caldina, the change of compliance in the front motor mounting construction affected also on rear axle physical reaction at all.
Before the alliance with TOYOTA company, all the SUBARU vehicle had some tendency to be shaken even with small gap passing. After the affair, the way of front mounting heavy weight in SUBARU Boxer motor models were completely changed in different ways from long lasted conventional way, the taste of ride had been changed as a matter of fact.
Probably, sophisticated TOYOTA technology might have been introduced into SUBARU models by the different way of concept.
The taste of ride in the vehicle is dictated by the balance of compliance including vibration buffer effect, they should be balanced in the physical properties, tire & it's pressure distribution in combination with dumpers and axle spring, rubber compliance inserted between them and the total distortion of the body construction, etc.
The engineers in the researching and the developing division are making desperate efforts every day, struggling like bleeding, to establish this precise balance, because it acts so delicately on the human 5 senses.
There exists no easy occupation to go easily on Earth, don't you think?

Rainy & cold today

Unfavorable weather condition with low temp prevents me from going out today. This kind of atmospheric condition permits no active work but writing in my professional field with just keeping myself in front of LCD.
Know hows, principles and back ground piled in my researching period are still in my memory, they are so to speak residue in my brain just like that remaining dust in the cylinder of an used combustion motor.
I feel relieved after getting them out by describing on the article papers.
To tell the truth, I did not realize that it a holiday today till I recognize workers in my family did not get up at usual time. It means that I'm living my daily lives without the perception of the differentiation of the days of the week.
After 45 years period of time I had retired my business field completely, some potential behavior remains to control myself with any reason.
Every environmental condition would be changed as new Spring season, next week!

IKEA Tsurushima Osaka

I dropped in IKEA Tsurushima Restaurant in Osaka for lunch, cheap bus ride for 45 minutes from Osaka Umeda took me to the place stopping two stations on the way, Osaka dome and Taisho Br. St..
Western styled Scandinavian store selling ready-to-assemble furniture, plus housewares in a warehouse large space is situated on a artificial island.
I wonder if this kind of store style would prevail in Japan similar with Costco Wholesale?
The taste and seasoning are acceptable for me in the restaurant there, but once a month of this meal is enough to me.
Western style meat dishes are too much for geriatric who has lower basal metabolism, probably some younger people would be satisfied here.
Though it was well maintained facilities, I was not a happy person there.
On the other hand, my friend is an indispensable person for me because of  continuous provocatively active behavior solving my lack of exercise.

Released completely today

Today, I declare to resign the part-time lecturer in Medical field and my desire was accepted by the faculty of the school. It was a specific day today to celebrate a graduation ceremony of final grade and I had take part in it as one of a guest. All the scenery were perceived so differently as before because it was a last opportunity to stay there, cherry buds were still hard, more two or three days would be required to bloom.
But, I have no regret or no loneliness after the retirement today, I did do well for more than 20 years with my best contribution to the school.
Now, I'm completely free released from any care to others, I have nothing to be anxious and to be distracted.
I go to bed to a sleep without thinking over about the schedule tomorrow, I might get up any time I wan or continue staying in bed all day long, nothing wake me up forcibly except a morning call for an usual breakfast.
According to a Statistical Datum on the residual life span of the retired succeeded person in the State of Florida, 90 days, how come?
Succeeding and retirement need not tomorrow, so, they close their lives in the early stage, it's logically correct, do you think?
My task now to be found out is watch out something to be desired by myself, otherwise I might be called from the Heaven!

Got a better half

Initial type YS 60 with pressurized fuel regulating system motor could have obtained it's better halves, OS model type 704 muffler in NOS condition. Though there was some anxiety about the adaptation, it's very usual that similar but just a little bit different, got I BINGO this time! 704 muffler and YS 60 exhaust port are exactly the same sizes each other. Now I got both of them at my hand at the same even prices, 2000 yen.
Remembering the past, YS motor obtained from Yahoo Auction priced at very cheap like nothing because of piled sludge in the combustion room and clogging in crank shaft supporting bearings and another moving parts, everywhere were dusty, clogged and dirty, also carburetor throttle was glued with vanish material.
As the carburetor body is formed by the one piece casting designing, best care was taken not to break or distort when disassembling.
But my desperate effort with love to survive this miserable motor survived again like a Phoenix, and almost one year was required to marry with a suitable muffler again.
Flying motor testing airplane I'm building now would give a good opportunity this old YS 60 self scavenge combustion motor to be operated actually in the sky  sooner or later.

Peaceful lunch time

Five minutes train ride takes me to Umeda Osaka from my working place, so I make it a rule to explore and to walk around seeking for new lunch menus, telling the truth, this is not my way but my intimate friend's.

As for my opinion, I do not accept to be immersed in a Pseudo Peace now, the time is come to open our eyes to see and to gaze at the circumstantial change around us, the world is moving like some vigorous crustal deformations.
We actually do not understand the value of Peace because we are living in the environment of satiation to no appreciation for food, clothing and housing with a blind peace under US occupation since just the end of WW2.
In another words, actually we are leading our lives in a peaceful flower garden without any perception of War for as long as over 70 years.
This strange phenomena fully dependents on the US military strategy at The Far East Front following the US intended The War Guilt Information Program.
Peace itself here is beneficial of World Wide Strongest US military power and their strategy scattered in Far East aria.
The benefit of 70 years peace does not depend on the US designed Japanese Constitution, but on US military Bases with 134 in number all over Japan land from Hokkaido to Kyusyu Okinawa including Japanese Defense Power Bases. This is why we had not been invaded by the neighbor Communism and Socialism countries till now.
Probably, the Influence figure around Japan should be changed in very near future after the negotiation between US and North Korea.

Yammar Diesel Company at Umeda opens their specific company cafeteria to ordinary people at reasonable prices, the service is limited only on Saturday and Sunday, their company closing days. The tastes are not so bad, but the vegetable salad freshness is outstanding and their advantage is salad bowl served together with the selected menu.
Because the meat dish had been sold away on last Saturday when we visited relatively late, we'll start one hour earlier today than before.

A new season

Very cute vase nourished Cherry blossom has begun to bloom a few days ago, and once started the blooming would proceed progressively. The prevailing Bus-Tour information are recommended everywhere for Sakura Sight Seeing. The social atmospheric condition is becoming lighter and lighter according to the change of seasons toward coming Spring.
As for my own social duty has almost eliminated because of the retirement from my 45 years lasted occupation.
Residual one is the request for a writing a book in our specific field by the professional publisher.
The essential is almost prepared and 30 % of the branches and leaves are decorated now. Though I have never recommended the writing work as one of a profession, now I feel it a work immovably to be done.
Remembering the past that some tremendous time had been wasted to search and to visit library scattered in the country, but now, I can do that without any efforts like before just sitting in front of LCD, because the entrance of International Library is fully opened just in front of me, this circumstantial change of the method of searching the related articles is a remarkably eye-opening phenomena recently.
The more conveniently the way for researching the related articles becomes, the less opportunity hits our desired and reliable truths and facts. It is not started that the safer way had been chosen to establish a research in a limited time period by utilizing so to speak Copper Iron-ism, most of the time the conclusion is apparently proved before starting the research, we should know that the huge Ocean filled with worthless articles prevents young researchers from proceeding their vigorous research activities.

Change of external world

Elimination of overconfidence with accurate self-control is important for human being at any time, and it is mainly influenced by the individual external circumstances without consciousness. Self-control is also governed the direction to live, I could not come to know this kind of internal emotional condition till I have come out from the complicatedly involved environment piled through my own life. When I got mentally naked deserting all of social connections, throwing away all the social status, honor and unnecessary relations, recognizing the main actor is no one but myself, the external world looks so different than before, everything changes as if living in some different foreign country. This is caused not by the outside world but mainly by the change of emotional condition of myself.
Though I have led my life in the state of Liberty, I could realized that I had been combined by the piled consequences.
Also, after retiring I could know how important are the intimate relations established between the members of my family and friends.

Below 2000 gr

The specification of YOSHIOKA Sunday Alpha 50 is 1900 gr to 2100 gr weight supporting 40 dm2 wing area powered by 40 to 50 motor. As the tip of the main wing is modified extending 12cm outside with 3 dm2 increase, the area would be 43 dm2, I'm going to fly this airplane with one of 60 motors I'm keeping many. Purely symmetric airfoil make it possible to utilize this training model as a contest airplane, though it looks strange in the scienery compared with another applicant's.
However it's appearance looks so unusual from a distance, the shape is not always recognized so clearly by the judges behind from 150 m, so some high score is desired if the pattern forms are so precisely accurate. This is my principle, never to run into a easiest way, expensively finished ready to fly model by the professional. The device for the competition should be prepared by myself, for myself and on myself.

Servos for Sunday Alpha 50

Old and heavy but reliable servos are going to be invited for YOSHIOKA Sunday Alpha 50, that had been used for tens years of period 30 years ago, in spite of old controlling software, just an analogue, plastic geared and core less motor. Included one S9001 was modified by replacing lower supporting plane bearing into a ball bearing.
As for wing servos, it's airfoil thickness accepts normal height S9101, air break setting requires independent servo right and left promptly.
Bitter experiences the other day forced me to establish the principle, avoid any vulnerability, stout construction is the first, only a reliable hard wear should be invited, the best consideration should be done before an innovative structure is adopted.

Allenamento Zen

Ricordando 3 anni fa quando ho rianimato il mio vecchio hobby, 30 anni di intervallo vuoto potrebbero causare diversi problemi prima che potessi andare bene insieme al mio vecchio hobby come prima, così ho immaginato. Anche se pensavo che la mia ansia non fosse al punto a riguardo, ma ora sento la mia preoccupazione che ho avuto 3 anni fa, perché gli incidenti aerei in questi giorni avrebbero potuto evitare se dovesse prestare maggiore attenzione ai voli. Come alcuni eventi sconvenienti sono accaduti, devo ricordare me stesso del modo di auto-illuminazione. È passato quasi un anno da quando mi sono ritirato dalla mia attività, non ho alcun obbligo minaccioso intorno a me stesso, è possibile non pensarci più il giorno dopo, prima di andare a letto. In una condizione circostanziata così allentata, la mancanza di senso stretto nella mia condizione emotiva deve aver invitato i risultati assurdi?
Qualche allenamento Zen potrebbe essere utile per me?

Zen Training

Remembering 3 years ago when revived my old hobby, 30 years of blank interval might cause several problems before I could get well along with my old hobby as before, so I imagined.
Though I thought that my anxiety was not to the point about that, but now I feel my concern I had 3 year ago hit it, because air-accidents these days could have avoided if should payed more attention on the flights.
As some inconvenient affairs had happened, must I remember myself about the self-enlightenment way.
Almost one year has passed since I retired from my business, I have no threatening obligation around myself, it is possible not to think over about the next day before going to bed. In such a loosened circumstantial condition, lack of tightened sense in my emotional condition must have invited the absurd results?
Some Zen training might be helpful for me?

Completamento del framework Sunday Alpha 50

YOSHIOKA Sunday Alpha 50 ha quasi completato il mio disperato tentativo di compensare la perdita di rendite causate dagli incidenti degli altri giorni.
Ad esempio, il PILOT Fighte 400 o il Beach Camber e l'Orion, ecc., Hanno esteso le modifiche dell'estensione del bordo e del bordo dell'ala, per esempio, PILOT Fighte 400 o Beach Camber e Orion, ecc. Estensione estesa a 1600 mm accetterebbe 60 motori con mormale silenziatore in futuro.
Dato che l'angolo diedro è zero gradi come i modelli di stunt della linea di controllo, il modo di usare l'ala singola intercambiabile si diffonde all'infinito, l'ala alta, l'ala della spalla e l'ala bassa lo faranno se la fusoliera ha un motore da 45 a 60 sul naso.
Questa idea vale la pena di mantenere il concetto che le prestazioni dell'aeroplano si basano principalmente su quella del disegno dell'ala principale, in quanto è l'attore principale a generare il vettore di sollevamento.
Quindi, possiamo giocare e divertirci con la costruzione di un'ala principale, le differenze tra la superficie della superficie dell'ala e il rapporto di momento posteriore e anteriore in qualsiasi modo.
Per tutti, potrebbe essere necessario qualche fattore di stimolazione esterna per far ruotare lo stato attuale ora, se lo studio potrebbe essere più calmo e più stabile.

Sunday Alpha framework completion

YOSHIOKA Sunday Alpha 50 has almost completed with my desperate effort to compensate the loss of resources caused by the accidents the other days.
Full planking and wing edge extension modifications were performed for the sake of coming utilization to use of the main wing onto another one for example, PILOT Fighter 400 or Beach Camber and Orion , etc. Extended wing span to 1600 mm would accept 60 motors with normal muffler in future.
Because the dihedral angle is Zero Degree like a Control Line stunt models, the way to use of single wing that is interchangeable spreads infinitely, Hi-wing, Shoulder wing and Low wing will do if the fuselage has 45 to 60 motor on the nose.
This idea is worth doing keeping the concept that the performance of the airplane mainly rely on that of main wing design because it is the main actor to generate the lifting vector.
So, we can play and enjoy with constructing a main wing, the differences of the wing surface road and back and front moment ratio in any ways.
For all, some external stimulating factor might be necessary to be revolved the current status now, if the situation might be more calm and more stable.

Old or Senior?

Consumption of my stock in my hobby is increasing these days because of accidents caused by just only trifle mistakes, and these disasters could be avoided if I should pay much more attention on the preliminary investigations based on the basic principles.
I feel that my thought is not so cheerful and intelligent as before that I was working in business as a First-line Fighter.
I have been released from the time restriction, no obligation to be forced to do quickly, no external stimulation to make haste. I'm going with "Hung loose" too much? I'm far from tightening and concentration utmost.
Are they some typically specific phenomenon observed in a Geriatric?
Though I'm an available person, do I recognize myself to be an aged senior citizen?

Sunday Alpha 50 started

The airplane accidents happened yesterday and the day before yesterday excited me to start YOSHIOKA Sunday alpha 50, 70 % of construction has digested today, and almost finished tonight.
A sadness has changed into motivation to construct new one, some external stimulation is necessary to activate my next work.
Though, not a less resources has lost because of accidents, any countermeasure is available in my stock.
The residual YS 45 FS are 2 pieces, one of them would be burdened for Alpha 50, main wing dihedral zero degree would be invited for the sake of Knife-edge maneuver, eliminating rolling habit, all planking method also be done intending ultimate physical property in Aerodynamics.
This is a good opportunity to know how quickly model airplane could be built up if I make desperate efforts.