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#1389226 - 09/19/03 10:44 PM Re: Only 50 Aircraft?  
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LORD BYRON Offline
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Medfield MA USA
Quote:
Originally posted by VonHelton:
Quote:
Originally posted by LORD BYRON:
Willi,

I get extremely nervous when Von Helton and the word "physics" are mentioned in the same sentence. I'm backing out of that one altgother.

LB
Thanks for the personal attack, LB.........
VH, I really just want to stay out of the way, OK? You do a lot of really cool stuff. That's great. I'm just opting out of any complicated discussions.

LB

Inline advert (2nd and 3rd post)

#1389227 - 09/19/03 11:18 PM Re: Only 50 Aircraft?  
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I'll miss ya LORD-BYRON!

Yes, perhaps we should allow VH to discuss his issues by himself!

#1389228 - 09/22/03 01:39 AM Re: Only 50 Aircraft?  

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@Lord Byron

Very interesting post. I was out-of-town this weekend, and it's 01:39 now, so I'm heading off to bed, but I'll give a good look later today.
Have you read the book "Three wings for the Red Baron?" Great read, and a lot of good facts for Dr I fans.

Willi

#1389229 - 09/22/03 04:05 PM Re: Only 50 Aircraft?  
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Willi,

I do have TWFTRB in my library and agree lots of interesting stuff in it. Just wish the author had shown a bit more restraint in the language department.


LB

#1389230 - 09/22/03 08:13 PM Re: Only 50 Aircraft?  
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LORD BYRON Offline
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Medfield MA USA
Quote:
Originally posted by FlyXwire:
I'll miss ya LORD-BYRON!

Yes, perhaps we should allow VH to discuss his issues by himself!
I'm not going anywhere. It's just that VH and I go WAY WAY back to the RB forum on Delphi, which now seems sadly defunct. VH has done some great work on RB, but let's just say that he holds certain opinions very very strongly and no one will ever change his mind on them. I am not interested in uselessly heating up the airwaves. There is no point in it.


LB

#1389231 - 09/24/03 03:00 AM Re: Only 50 Aircraft?  

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Quote:
Originally posted by LORD BYRON:
Willi,

I do have TWFTRB in my library and agree lots of interesting stuff in it. Just wish the author had shown a bit more restraint in the language department.

LB
Do, pray tell, what do you mean?

Willi

#1389232 - 09/24/03 03:59 PM Re: Only 50 Aircraft?  
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LORD BYRON Offline
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Quote:
Originally posted by I./JG53_Willi:
Quote:
Originally posted by LORD BYRON:
Willi,

I do have TWFTRB in my library and agree lots of interesting stuff in it. Just wish the author had shown a bit more restraint in the language department.

LB
Do, pray tell, what do you mean?

Willi
Bennet is at his best when discussing design and performance issues. But when he addresses narrative history aspects in his book, I get the sense that his editor told him: "Great book, Leon, but a little dry; we need to add a little controversy and excitement." In this respect, I found parts of his prose shading a bit into the purple zone.


LB

#1389233 - 09/24/03 04:09 PM Re: Only 50 Aircraft?  

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@LB

Ach-so, I see. yes agreed. Some parts of the book seemed very much out of character to the overall theme of the work.
Still, a good read with a lot of interesting information.

Willi

#1389234 - 09/24/03 05:19 PM Re: Only 50 Aircraft?  
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LORD BYRON Offline
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Quote:
Originally posted by I./JG53_Willi:
@LB

Still, a good read with a lot of interesting information.

Willi
Quite agree.


LB

#1389235 - 09/24/03 05:29 PM Re: Only 50 Aircraft?  

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On the subject of the DrI...

For speeds at alt, from German test:

155.8kph at 2780m
148.9kph at 3200m
138.0kph at 4180m

Climb rates: (not exact, extracted from table)

2'34" -3000ft
3'42"- 4000ft
7'50"- 8000ft
13'6"- 12000ft

Willi

#1389236 - 09/24/03 07:12 PM Re: Only 50 Aircraft?  
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LORD BYRON Offline
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Medfield MA USA
Quote:
Originally posted by I./JG53_Willi:
On the subject of the DrI...

For speeds at alt, from German test:

155.8kph at 2780m
148.9kph at 3200m
138.0kph at 4180m

Climb rates: (not exact, extracted from table)

2'34" -3000ft
3'42"- 4000ft
7'50"- 8000ft
13'6"- 12000ft

Willi
Willi,

Thank you. It seems that there is a lot more Dr.I performance data than I knew. Do you have test details? Dates, conditions, etc?


LB

#1389237 - 09/24/03 07:38 PM Re: Only 50 Aircraft?  
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SunScream Offline
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Northampton UK
Useful stuff. Thank you, Willi.


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#1389238 - 09/24/03 08:30 PM Re: Only 50 Aircraft?  

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The speeds come from NACA TN-147, the climb rate I extracted from the overall chart for WW1 aircraft at NACA.
Lot's o' interesting information there for those inclined to dig deep enough.

Willi

#1389239 - 03/23/04 05:38 PM Re: Only 50 Aircraft?  

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Given the continued rotary engine debate going on, I thought resurrecting this thread was a good idea.

See FlyX's post on page one, and my post later. For reference, a link to the forum thread where this is discussed.

http://forums.delphiforums.com/TheWesternFront/messages?msg=375.1

The thread is an interesting read and should be familiar to others here.

Droops

#1389240 - 03/23/04 09:54 PM Re: Only 50 Aircraft?  
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Le Rhône 80-hp models were made under license in the United States by a Pennsylvania firm, Union Switch and Signal. Oberursel made the 110-hp model, supposedly without authorization in Germany. The Oberrursel U.R. II was a straight copy of the Le Rhône but the Le Rhône was preferred over the Oberursel due to the superior materials used over the home product. However, there were reports in July, 1918 that there was a shortage of Castor Oil which the rotaries required. A new Voltol-based lubricant was substituted and was blamed for a rash of engine failures on Fokker E.V using the Oberrursel U.R. II rotary engine. It has been suggested that without the proper lubricants, the Le Rhône rotary would have been equally failure prone.


"We have come to bring you Liberty and Equality, but don't lose your head about it. The first one of you moves without my permission will be shot." Marshal of the Empire Francois Lefebyre
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