Aces High Bulletin Board

General Forums => Aircraft and Vehicles => Topic started by: Kweassa on April 04, 2007, 02:50:33 AM

Title: Another theoretical WEP question..
Post by: Kweassa on April 04, 2007, 02:50:33 AM
According to HTC charts, the P-51D WEP and military performance margin diminishes over about 26~27k altitude.

 I'm assuming that the P-51 WEP system (before the water-injected P-51H arrived) used a classic 'overboost' method by just simply opening the manifold upto higher levels than '100%' under normal military power conditions.

 Does that mean that theoretically, around 30k or higher (where MIl and WEP shows no difference in performance), the P-51D won't 'overheat' or meet any of the engine-related problems which are prone to mainfest if WEP was engaged for too long?

 I'm think that might be the case, because if a WEP system uses the standard 'overboost' method, it'd mean that at such high altitudes there isn't enough air to cause an 'overboost' in the first place, regardless of whether your throttle lever is at 100%(MIL) or 110%(WEP). Therefore, it won't matter if you just slammed the throttle forward 'over the wire', since not enough air = not enough combustion = no overheating.

 Would this be the case?
Title: Another theoretical WEP question..
Post by: gripen on April 04, 2007, 05:57:31 AM
Yes, that will be the case.
Title: Another theoretical WEP question..
Post by: AquaShrimp on April 04, 2007, 06:03:20 AM
I read a book in high school that was full of first hand accounts from P-51 pilots.  It was about 350 pages, and titled P-51 Mustang.  In one of the accounts, a pilot was on the deck after escorting bombers.  Some fighters jumped him, so he engaged WEP and flew all the way home from France to England with WEP engaged.
Title: Another theoretical WEP question..
Post by: Keiler on April 04, 2007, 08:42:40 AM
France to England can be as short as 20 miles :P

Matt
Title: Another theoretical WEP question..
Post by: Puck on April 04, 2007, 10:18:19 AM
Quote
Originally posted by Keiler
France to England can be as short as 20 miles :P

Matt


He took the eastern route...
Title: Another theoretical WEP question..
Post by: Joachim on April 04, 2007, 10:31:22 AM
Quote
Originally posted by Puck
He took the eastern route...


With Gunther and Hans  calling him a timid runstang dweeb all the way home on radio frequency 200.
Title: Another theoretical WEP question..
Post by: Keiler on April 04, 2007, 12:07:09 PM
Quote
Originally posted by Puck
He took the eastern route...


I was just kidding ;)

Matt