Lancaster PA474 BBMF Summer 2016

PA474 had engines test today.

https://www.facebook.com/RAFConingsby/videos/1585339938429946/

Yup- it’s simply to increase the effective area of the rudder, and was standard on some batches of late-build Lancasters.

It’s larger area, and the best way to do it on an elliptical surface is to extend one plane.

That’s a good question Hampden98 !

Not this AGAIN! PA474 was BUILT with the enlarged rudder type of fins; they became the norm on later production Lancs.

Can you answer this question which has always interested me. Why does the type of tailfin the Lancaster currently have have a flat edge at the bottom?
Was this to prevent grounding or just a manufacturing nicety?

If I remember correctly.

The spar is life ex in 2018, so the one from the Canadian preserved Lanc FM212 which had been rebuilt to airworthiness standards before I believe it was knocked on the head, will be rebuilt to “waste of space” (BAe) standards allowing it to be replaced in 2018 for the life ex item so it will reduce downtime and allow it to maintain its display commitments.

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Thanks for info Tony

Considering the way repair and maint operations are carried out on non combat RAF aircraft there can only be one correct prediction of when PA 474 will return to service. When it is safe to be cleared for flight again. It was fortunate that the engine fire occured close to an airfield with fire cover on hand, I have sad memories of the B17 force landing in the USA when the fire spread after the crew escaped safely.

Good idea Meddle, message sent!

She was down for RIAT but as now been withdrawn officially…

this post may contain grammatical errors…

It might be best to go straight to BBMF, as apparently they are quite easy to communicate with. Apparently they are still holding on to the 16th for first flight, but it will be a tight one. Apparently these new fuel tanks are made in China? No irony there!

I’ve heard a rumour that PA474 is being refuelled for testing. Does anyone have any news?

Peter Jackson is doing that (albeit with modified materials).
Ah yes, I mean the rudders.
Cees

Build some new ones or forget about flying her !

What is the life expectancy of the replacement and what happens when that expires.?

Trim tabs or rudders?

I thought the trim tabs were bigger on later Lancs, not the fins themselves?
Cees

“The CH2A and the City of Windsor are very pleased to announce that, in response to a request from the Battle of Britain Memorial Flight, we will be sending our horizontal stabilizers to RAF Coningsby, UK. They will be re-built to BAe standards and will replace the current stabilizers on Lancaster PA474 as they near the end of their airworthiness sometime in 2018. This exchange will allow the BBMF Lancaster to uphold their flight commitments through the 2018 season without interruption. Once their old stabilizers have been removed, they will be shipped to Windsor to be installed on Lancaster FM212. We are very proud to uphold the spirit of co-operation that has existed between our organizations and our two great countries!”

Aha TT, why could I not remember they are horizontal stabilizers ? and I did know they had enlarged fins on PA474 of which has been discussed here before.
Interesting stuff this Lancaster stuff

I don’t think the fins come into, simply the horizontal stabilizer

a more Lancaster type fins I am guessing

Not this AGAIN! PA474 was BUILT with the enlarged rudder type of fins; they became the norm on later production Lancs.