Sunday, April 20, 2008

Induced Drag

之前在台灣ㄧ直搞不懂什麼叫Induced Drag? 為什麼速度減少,阻力反而增加呢?直到昨天晚上看到ㄧ本書上的ㄧ段話,才恍然大悟!
"Induced drag is inversely proportional to the square of the speed. If speed is decreased by half, induced drag increases fourfold. It is the major cause of drag at reduced speeds near the stall; but, as speed increases, induced drag decreases."
我還因此自己導出了ㄧ個公式(如圖,哎!以前讀書都沒這麼用功!)懂是懂了,不過公式是我自己記憶用的,錯了可別怪我喔!
如果上面說明不清楚,看ㄧ下以下的圖大概就清楚了吧?

Friday, April 18, 2008

A Gorgeous One--Twin Star

This baby is so beautiful! dual engines, four seats, named Twin Star.
Glorious opening doors.
Stick controlled.
Hard paddles.

Jeffery is in his last step -- CPL (Commercial Pilot License) physical test. Once he make it, he can go home!
Hold on a minute! Don't rush to hop in!
You know how much does this test cost him?
USD$3000!
wanna play? you'd better be good.

My hand, Captain's hand.

Monday, April 14, 2008

“李強仁“

台灣家裡傳來的笑話,超好笑:

岳父那天對香緹說他是"女強人",但因為台灣國語發音, 聽來像"李

強仁"

香緹很生氣說"我不是李強仁, 我是李香緹"

Sunday, April 13, 2008

Spatial Disorientation 空間迷向


I'd read a book before, it says once a pilot cruised with his girl friend at night. While enjoying the two-people-world (what a typical "the air of romance"!), suddenly, the girl said:

"Why stars up there are all moving so fast?"

At that time, the pilot realized that they were flying up-side-down! Those moving lights his girl friend saw were not stars, those were vehicles running on the ground!
曾經看過ㄧ本書,說有ㄧ個飛行員帶著女朋友作夜間飛行,正當享受著寧靜的兩人世界時,他女朋友突然問他說:“為什麼天上的星星跑得那麼快?“
那時這位飛行員才意識到飛機正上下顛倒著飛呢!那根本不是什麼星星,頭上那些燈光其實是路上的車哩!

That is so called "Spatial Disorientation", it happens often while people is moving in 3-D space. In fact, I'd experienced once yesterday.

When I was concentrating my attention on those maneuvers, several times I didn't notice that we were banking several degrees! until the instructor reminded me.

Interesting and dangerous, I will notice it in the future.
那就是所謂的空間迷向,人在立體的空間活動時,常會發生的。
我昨天就經歷到了,當我正專心在做著各種動作時,渾然不知飛機正在傾斜,若不是教練提醒,可能翻過去了都還不知道哩!

Saturday, April 12, 2008

No way! It's your duty.


Today I followed a new instructor again, the first instructor Brodie Brazil left school after only teaching me 2 fly classes, then Andrew Foo once, and then this one today. I followed 3 instructors in 4 classes. I didn't complained to school about this, because I think every instructor has his own teaching way and skills, it's good for me. Besides, starts from next Monday, I will follow a swell one with very good reputation.

Today's Nick Beesley, before flying, he asked what I have learned and done in last three classes, I said normal maneuvers and conversations with tower.

"Oh, you'd talked with tower?" he asked.
"Yes, only yesterday, once." I replied.
"OK, you do all the conversations today." he said.
*&%$#@
"and more, we do slow fly and stall." he added.
Stall!? at 4th class? OK, let's see, I said to myself.

As usual, student, as me, sat at left side, the pilot-in-command position, this cool guy sat next to me, the right side seat. After some broken conversation with tower at ramp, we taxied to runway, today's wind direction changed, so we had to taxi almost the all runway length, to the other en of runway.

Taxiing airplane on ground is completely different from driving car on the road, we don't use steering by hands. Conversely, we use both feet. I did the taxi like snake's crawl, of course.
Finally, When we got the hold-short position and waiting for the tower's approval for take off, I said to him.

"I am not familiar with the taxi yet, later on, when we take off, can you do the taxi?"

Guss what? This cool young man said.
"No way! It's your duty."
*&%$#

Gee! I guess this is so called "American style".

Friday, April 11, 2008

Ground School Instructor : Spencer Thomas


地面課的老師,長得瘦瘦高高的,ㄧ副白面書生的樣子,不過課講得很好,尤其讓我迷惑於他那ㄧ口流暢的英文。第一天(3/31)來學校晚上剛好趕上這期的第一堂課,事實上對我來說,他著實給了ㄧ個下馬威,ㄧ開口就快速,連珠炮地講了將近三分鐘,就像是張小燕ㄧ樣,當時嚇了ㄧ跳,“哇!講話這麼快!“但是上了三堂課之後,越覺得他真是厲害,能夠快速的講話,而且完全不會有像是“恩,啊,那個“接不下去的感覺,昨天又發現他的用詞還真是優雅。
“Through",他昨天講了這個字,哇!覺得台灣沒有ㄧ個人可以講得像他ㄧ樣正確。如果香緹可以在這裡待個半年,英文應該也可以發得那麼好。

呼叫塔台


Today I followed a new instructor, Andrew Foo, around 35 age, very serious while teaching. In fact, besides of teaching, he did not really talking to me something.
It's just my 3rd flying class today, and he asked me to contact ground/tower, and take off by myself!

ATIS:119.65
"Livermore Municipal Airport, Information Echo, Zulu time 17 hundred, Weather wind calm, Visibility 10, Temperature 14 Celsius, Dew point 04 Celsius, Altimeter 3014, Runway in use 25 Right, Advise on initial contact you have Echo."

I:
" Livermore Ground, Cessna 89653, At Ahart ramp, Ready to taxi for take off with information Echo."

LVK GND:121.6
"Cessna 89653, LVK GND, taxi runway 25 right approved."

I:
"Cessna 89653, taxi 25 Right"

I:
"Livermore Tower, Cessna 89653, Hold short 25 right, Ready for take off with right 45 degree departure."

LVK TWR:118.10
"Cessna 89653, Livermore Tower, taking off 25 right with 45 degree departure approved."

I:
"Cessna 89653, taking off 25 right, thank you."

Maneuver: Strait and level, constant climb, descent, level turn, steep turns.

In steep turns, I usually drop nose, need bigger move to pull up and keep watching the Horizon.

This super instructor, even let me operated the landing! he didn't take over until floating! How come he trust me so much! :-)

Taxiing still not in strait, It's my first time, Man!

Wednesday, April 09, 2008

American Holes




I’ve found one thing very interesting here. It’s a common sense that the American Size is big, large, even huge, and now I found even the holes here are big here.
I bought a bottle of dish detergent, I poured and pressed a little bit, guess what? After I cleaned my dirty dishes, I mopped all the pans, the ovens, and the kitchen top,
I bought a bottle of shampoo, I stood in the tub, poured and pressed a little bit, then, I saved the face soap and shower gel at that time bathing.
The most funny one happened last night, I bought a cane of cola, I pulled the cane circle off, had a sip and glanced at the cane. Suddenly, I bursted out laughing, and sparged all the cola to the table. Even the cane holes here are big!!

Cautions:the virus! 小心病毒!

If you guys found a strange name put one comment in the "comments" column, and it needs you to click it again, it might be a VIRUS! Just ignore it, don't click it. I will deal with this secret admirer alone.
最近發現我竟然還有個secret admirer,它在我的ㄧ些文章中都“放“了ㄧ個意見,我心裡暗爽地點進去看,竟然還要我再點選連結到別地方去。連結後出現ㄧ堆亂碼,我才知道那是個木馬程式!就是連結病毒啦!還好我的蘋果不會中毒,真可惡!
所以各位如果看到意見欄裡面,有個奇怪的名字,它所寫的意見竟然還要你去點選的話,那可能就是隱藏在我部落格裡的連結病毒!不要去點它就沒事了,我會反應給Blogger,如果他們處理的話,很快就會沒這東西了。那我也就沒有secret admirer 了,嗚...

Monday, April 07, 2008

Lake Tahoe Weekend Vacation--Part 3



滑雪去!摔得七暈八素也不怕!