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Al, Please permit me to disagree without digging through all the books. As I heard it, there was a lot of pressure to get an increase in the gross weight approved. The airplane structure was OK but the FAA was unhappy in their testing at 1400 lb., full power, full up elevator (with, according to Bill Bayne, an extra few degrees added during testing to allow for maintenance errors in the field so 13° + 3 or 4° for testing). So the FAA limited the D model to 9° of up travel. It went into production. With the 9° up travel, the stall speed / landing speed increased somewhat and became less desirable. After making something like 77 D models, the factory cranked the elevator back to 13° (with few, if any, other changes) and sold the planes as model 415-CD for a while. My memory tells me that the sales slowdown started in the fall of '46 when the dealers and pipeline became filled and demand suddenly slackened. Your comment that CDs were C models recalled by the factory is something I don't remember seeing in any of my source documents. Could you let me know, please, where you learned this? By my old charts (Bill Bayne is making new ones), there were 77 415-D and 368 415-CD made. It's true that there were a lot of planes sitting around in the winter, spring and summer of '47. If any were 'converted' to be D or CD, they were serial numbered with D or CD series numbers. I'm looking forward to Bill Bayne's upcoming book even though I don't know which year (or decade) he'll publish it. He's been doing some seriously careful research as is shown in many of his answers here on the list. Ed Burkhead http://edburkhead.com/ ed -at- edburkheadQQQ.com (change -at- and remove the QQQ) I know you believe you understand what you think I said, but I am not sure if you realize that what you heard is not what I meant. (Jim, AKA Midnight Plowboy) -----Original Message----- From: A J DeMarzo [mailto:[EMAIL PROTECTED] Sent: Sunday, February 27, 2005 7:05 AM To: [email protected] Subject: Re: [COUPERS-TECH] 1947 415 CD Data Plate ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- Larry; The CD and D are two different animals, they are not the same. You're on the right track by saying they were converted at the factory, but not all of the required work was performed. The CD's were actually C's that were either recalled by the factory or were excess factory stock that had a few of the improvements done. Many were done by Ercoupe dealers in the field, too! ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers-tech/
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