[UPDATED] 公館飛行場裡的防空塔
Pillboxes on Kokan Airdrome (Now CCK)

Source： Google

網友Michael Carl在我上一篇文章留言，敘述他在1970年代駐防清泉崗基地期間，進到基地上一座日軍防空塔內部探險的親身經歷，讓我想說基地裡是否還有其它的防空塔，於是開始在Google Earth上尋找。其實還滿容易就找到另外一座，因為它就位在Michael探險的那座不遠處。上面這張2003年11月24日拍攝的衛星照片中（點擊可放大），標示1號的是Michael提到的防空塔，2號是我自己找到的另一座，由於它的影子又長又寬，顯然體積比1號防空塔更龐大。3號物體的高度跟1號差不多，但因為頂部沒有圓洞，所以初步判別不是防空塔。
Prompted by Michael Carl’s comment in my last post regarding his personal experience of exploring a pillbox on CCK Air Base in the 1970s, I started to look for other pillboxes on the base by checking satellite images on Google Earth. It was not too difficult to find another one, because they was not far apart. The pillbox that Carl personally explored is #1 in the above satellite image (click to enlarge), taken on November 25, 2003. The one I just found is #2, which is judged to be much bigger and taller than #1 since its shadow is wider and longer. There is an object, #3, which appears to be as tall as #1 but does not have a cavity on its top. So it might not be a pillbox at all.

下面這張衛星照片攝於2011年7月8日（點擊可放大），前面提到的1號與2號防空塔都還在，但是標示為3號的物體已經不見，應該是被拆除了，地上還留下拆除作業的痕跡。
On the satellite image below (click to enlarge), taken on July 8, 2011, both #1 and #2 are still there but #3 is gone. The military must have torn it down.

Source： Google

清泉崗基地的前身是日軍的公館飛行場，但這裡其實最早被稱為台中飛行場。在以下這張1945年7月11日由美軍拍攝的偵察照片中，前面所提三個物體大致可見，因此確認它們都可列為古蹟（在台北市比我年紀還小的建築都叫古蹟了），所以2011年的衛星照片也顯示軍方極可能把一座古蹟拆毀了（反正這也不會是第一次）。
CCK Air Base is largely built on the site of former Kokan (Kungkuan) Airdrome. But the airdrome was first called, confusingly enought, Taichu (Taichung) Airdrome. I don’t know when the Japanese renamed it. Anyway, the three objects mentioned can be seen in the reconnaissance photo of Kokan below, taken on July 11, 1945, confirming that all three are dated back to WWII. In other words, Taiwan military mostly likely has destroyed a historic relic (not their first time, if they did).

Source： NARA via Academia Sinica 中央研究院臺灣文史資源海外徵集與國際合作計畫「美國國家檔案館典藏臺灣舊航空照片」

下面這張戰後的空照是1959年10月21日拍攝：
The next is a post-war photo taken on October 21, 1959:

Source： NARA via Academia Sinica 中央研究院臺灣文史資源海外徵集與國際合作計畫「美國國家檔案館典藏臺灣舊航空照片」

因為我去過幾次清泉崗的基地開放活動，所以有可能無意間拍下這些古蹟的身影。果其不然，在我2006年拍的照片裡，三座古蹟全部入列。下面這張照片的右側是我稱為1號的防空塔，而照片也顯示所謂的3號物體其實是一座像是水塔的建築。
I have been to CCK several times for the Air Force open house. So I may have photographed one of these pillboxes “by accident”. After I search my photo archive, it is confirmed that I photoed them all when attending the 2006 open house. In the next image, pillbox #1 is on the right-hand side and #3, which turns out to be a water tower, is on the left. (This is because I took the photo from the north east.)

後來我又發現我在1999年（那還是底片機的時代），就拍過這座「水塔」：
Then I found out that actually I photoed the water tower back in 1999:

我現在才想起其實以前就注意過被我標示為2號的防空塔，因為它真的非常顯眼，下次基地開放時不妨多留意一下。以下是我在1999年拍到的照片：
I believe many people attending the open house would have seen the pillbox #2 already, since it is tall and big. The photo below was taken (on a film) in 1999.

[2013/01/01 Update]:
以下是網友提供的2號防空塔內部照片：
The next photo shows the interior of pillbox #2:

我會利用時間把之前在Google Maps上公布的防空塔位置也做更新。 另有網友指出，除了上述兩座防空塔，目前清泉崗基地事實上還有第三座，並且提供了座標。以下2002年的衛星照片顯示了這座新發現的防空塔頂部的圓孔，它的影子也反映了它的高度。
I will update my list of pillboxes on Google Maps accordingly. An anonymous source told me that there is still another pillbox on CCK AB and provided its coordinate. The hollow on the top and the long shadow in the following 2002 satellite image reveal it is a pillbox.

Source： Google

下面這張攝於2012年5月22日的衛星照片顯示它仍屹立在基地上，由於它的位置離台中航空站不遠，說不定搭機的旅客就看得見。
The following May 22, 2012, satellite image confirms it is still on the base. Since this pillbox is very close to the new terminal of Taichung Airport, passengers may be able to see it when they fly to/from this airport.

Source： Google

清泉崗基地的三座防空塔位置標示如下，最新發現的一座以英文字母O代表。
All three pillboxes are shown in the following Google Maps, with the last found one marked as O.

在較大的地圖上查看中台灣防空塔 Pillboxes in central Taiwan