![]() |
Quote:
Dang! I edited my post from 'Cortina' to 'Escort' because I figured nobody would remember the old monster. Oh yes, I loved the Cortina, my mate had one and Christ - how am I alive today!?! Then there was the Capri 2.8i - that was for the big league ;) |
I hope I got people flying, and restored some faith.
http://www.rdox.info/01.jpghttp://www.rdox.info/02.jpghttp://www.rdox.info/8.jpghttp://www.rdox.info/9.jpg http://www.rdox.info/0.jpg |
Hi Dan, how would you have done that? Are you a dev or something?
|
Quote:
With BCC-O, Merlin XII was technically capable of pressures higher than +9lbs., it was certainly safe to operate it at +12lbs. (for that was the take-off power with the throttle gate system and also supported by simple fact that XII was improved III and III was approved for that MAP). +17lbs. is consistent with R-R raw tests but perhaps JtD is right, I don't know. I agree that as for Pilot's Notes the Merlin XII are set correctly for the sim (at +9lbs max), there is not enought direct evidence and the date of amendment is not clear, unofrtunately. The best authority at early Merlins is the Merlin in perspective publication quoted by Al Schlageter in here but it does not clarify the date of emergency boost amendment. There was no modification necessary to achieve that fore sure, it was physically possible to have boosts higher than +9lbs from day one on Merlins XII. I agree with you that it would be great and interesting to have the BCC-O (ABC) modelled, I would not mind. It is logical and almost certain that it has been used in combat. For the operation and technical details of both Take Off power and ABC, there were some interesting scans and description by Banks in some other thread. |
Quote:
There was actually very specific vocabulary to describe the use of emergency combat boost. The same went for any other conflict where they could use some extra power available (e.g. afterburners in Vietnam war) and often described it in their narrations, written or spoken. I am sure German pilots would be doing the same if that was the case. The only thing that could explain that lack of specific references to Erhoehte Notleistung (and mind you it referred to by the pilots in some late war combat literature as they were flying German aircraft with extra combat power designed by one mean or another) is that in the Emil, for emergency MAP one had to slam the throttle fully forward, there was no switch or knob or any gate to go through to prevent the use of 1,45 ata. So perhaps that is why. |
I'm struggling with some of the logic behind the use of 12lbs here.......for the life of me I can't think of a single circumstance where a pilot would need to break a sealed lever to get an emergency take off boost in a single engine aircraft, take off performance should be accounted for using max available non emergency power...........OR have I got the wrong idea and 12lbs boost was available without breaking the seal but was instead achieved by use of a throttle gate and was automatically reduced above 1000' and if you hadn't climbed above 1000' on departure you were expected to reduce after a max of 3 minutes? thereafter the max boost was 9lbs?........which means that the sealed boost lever has not yet been used.......I wonder what would happen if I used it?
|
Quote:
|
Quote:
However I doubt that any Merlin XII had a unrestricted boost cut-out. |
Quote:
Quote:
|
1 Attachment(s)
Quote:
The throttle had a gate, at which the normal max 9lbs boost was produced. At the gate you could shift the throttle to the left then forward to achieve +12.25lbs for takeoff. Emergency combat boost of +12lbs was also available with the throttle at the normal max position (+9lbs) by pushing forward the red tab we are familiar with froim the Spitfire MkIa/100 octane. Why there should have been two methods I don't know. I have the attached on my hard drive for the Spitfire MkII, I'll try to find out more if we have a copy of an original Manual at the museum. |
All times are GMT. The time now is 04:14 PM. |
Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright © 2007 Fulqrum Publishing. All rights reserved.