The Carryfast engine design discussion

ERF-NGC-European:

ramone:

cav551:

[zb]
anorak:
ERF’s ■■■■■■■ Preferred (That’s what I thought it stood for!) policy must have been watered down later, when Perkins finally got their hands on the Eagle, and made it into a stronger competitor. Until the M11 came along (1994, according to Wiki), ■■■■■■■ had quite a gap in its range, ably filled by those 375/400 Tx engines in the E series ERF.

ERF C16 Gardner 6LYT as operated by Lowes of Paddock Wood. ERF also offered ERF C12 Gardner 6LXDT.

Were the 16 litre Gardners he 320/350s?

Grille says Gardner 320. C-series also had the then new ■■■■■■■ 320 on offer.
0

I had a 320 it was a great motor in a Foden

Carryfast:
The big Triumph saloons were anything but dated they were more than a match for the BMW 5 series with the new 2.3 and 2.6 6 cylinder and the Rover V8 engines.

You really think the Acclaim and 800 were the way to go v that.

The RR was ‘made by the firm’ ultimately the two state owned assets Leyland and RR Diesels, that like the Leyland Truck and Bus divisions, was flogged off.

You do know that Edwardes did ( eventually ) ‘cull’ the TL12 unless you’re saying that the decision to end its production and implementation happened simultaneously.

No surprise in the knowledge that the RR 290/300/340 were all there in the ’ early 80’s’.The question being why not cull the TL12 ‘before’ launch of the T45 rather than after and why did the government flog off RR diesels to Vickers at that point in the late 70’s instead of taking it into Leyland Group.

To which your bs answer is that Acclaim and 800 were great cars and the RR couldn’t have survived at 1,900 rpm without throwing con rods.

You need to read this, because you still haven’t even got the dates right:
amazon.co.uk/Back-Brink-Sir … 0002170744
£4.51, delivered to your door, in hardback. Mine’s only paperback, so you would have bragging rights there, if nowhere else.

By the time of Edwardes’ stint at BL, all of the Triumph cars were outdated, having been in production for well over 4 years (apart from the TR7, which was great :neutral_face: ). The 5 Series was almost a decade more modern. Even in the mid 1970s, Triumphs were old men’s cars. People who had done well for themselves bought 2000E Cortinas. Regarding the TL12, it was still in production for years after Edwardes left BL. Buy the book and read it, otherwise these discussions are futile: “your bs answer is that Acclaim and 800 were great cars and the RR couldn’t have survived at 1,900 rpm without throwing con rods.”. I didn’t say any of that; you did. The truck racing technicians in the 1980s said that the RR engine was safe to 2600rpm. At 2800 it was not safe to race. You need to read about that too. If your only research tool is YouTube, you might find a video of a hooligan driving a Fiat V8 at 2800rpm, without any problems.

[zb]
anorak:

Carryfast:
The big Triumph saloons were anything but dated they were more than a match for the BMW 5 series with the new 2.3 and 2.6 6 cylinder and the Rover V8 engines.

You really think the Acclaim and 800 were the way to go v that.

The RR was ‘made by the firm’ ultimately the two state owned assets Leyland and RR Diesels, that like the Leyland Truck and Bus divisions, was flogged off.

You do know that Edwardes did ( eventually ) ‘cull’ the TL12 unless you’re saying that the decision to end its production and implementation happened simultaneously.

No surprise in the knowledge that the RR 290/300/340 were all there in the ’ early 80’s’.The question being why not cull the TL12 ‘before’ launch of the T45 rather than after and why did the government flog off RR diesels to Vickers at that point in the late 70’s instead of taking it into Leyland Group.

To which your bs answer is that Acclaim and 800 were great cars and the RR couldn’t have survived at 1,900 rpm without throwing con rods.

You need to read this, because you still haven’t even got the dates right:
amazon.co.uk/Back-Brink-Sir … 0002170744
£4.51, delivered to your door, in hardback. Mine’s only paperback, so you would have bragging rights there, if nowhere else.

By the time of Edwardes’ stint at BL, all of the Triumph cars were outdated, having been in production for well over 4 years (apart from the TR7, which was great :neutral_face: ). The 5 Series was almost a decade more modern. Even in the mid 1970s, Triumphs were old men’s cars. People who had done well for themselves bought 2000E Cortinas. Regarding the TL12, it was still in production for years after Edwardes left BL. Buy the book and read it, otherwise these discussions are futile: “your bs answer is that Acclaim and 800 were great cars and the RR couldn’t have survived at 1,900 rpm without throwing con rods.”. I didn’t say any of that; you did. The truck racing technicians in the 1980s said that the RR engine was safe to 2600rpm. At 2800 it was not safe to race. You need to read about that too. If your only research tool is YouTube, you might find a video of a hooligan driving a Fiat V8 at 2800rpm, without any problems.

In what way was the 5 series more modern than a Triumph 2.5 saloon with the new 2.3 and 2.6 6 cylinder engines and Rover V8 in it in 1977 ?.The BMW didn’t even have rack and pinion steering it still used 1950’s Zodiac style steering box just klike the E3 before it and had been in production since 1972.It then continued on in different marks and developments for decades to date.

The TL12 went out of production in 1983.Remind me when Edwardes left and when that decision would have been made.

So you’re saying that the RR was ok to 2,600 rpm.
It was obviously no problem at 1,950 where its peak power was produced up to 400 hp so WTF is all your tensile load bs v TL12 all about.When the TL12 couldn’t get past 273 hp at 2,000 rpm without either blowing it’s head off and/or wrecking it’s ends.
As opposed to the fact that putting the TL12 out of its misery was the only thing that Edwardes got right and he only did that because the bankers wanted their T45 development cash back before closing the doors and handing over to DAF.

^^^^
It is on record that the first production AEC diesel engines (A155) ran in service with the LGOC T class AEC Regals on occasions at up to 75mph, the gearing equating to 3800rpm.

cav551:
^^^^
It is on record that the first production AEC diesel engines (A155) ran in service with the LGOC T class AEC Regals on occasions at up to 75mph, the gearing equating to 3800 rpm.

Not much use in a 32-38t truck with the design aim of 400 hp potential at less than 2,000 rpm. :confused:

Carryfast:

[zb]
anorak:

Carryfast:
The big Triumph saloons were anything but dated they were more than a match for the BMW 5 series with the new 2.3 and 2.6 6 cylinder and the Rover V8 engines.

You really think the Acclaim and 800 were the way to go v that.

The RR was ‘made by the firm’ ultimately the two state owned assets Leyland and RR Diesels, that like the Leyland Truck and Bus divisions, was flogged off.

You do know that Edwardes did ( eventually ) ‘cull’ the TL12 unless you’re saying that the decision to end its production and implementation happened simultaneously.

No surprise in the knowledge that the RR 290/300/340 were all there in the ’ early 80’s’.The question being why not cull the TL12 ‘before’ launch of the T45 rather than after and why did the government flog off RR diesels to Vickers at that point in the late 70’s instead of taking it into Leyland Group.

To which your bs answer is that Acclaim and 800 were great cars and the RR couldn’t have survived at 1,900 rpm without throwing con rods.

You need to read this, because you still haven’t even got the dates right:
amazon.co.uk/Back-Brink-Sir … 0002170744
£4.51, delivered to your door, in hardback. Mine’s only paperback, so you would have bragging rights there, if nowhere else.

By the time of Edwardes’ stint at BL, all of the Triumph cars were outdated, having been in production for well over 4 years (apart from the TR7, which was great :neutral_face: ). The 5 Series was almost a decade more modern. Even in the mid 1970s, Triumphs were old men’s cars. People who had done well for themselves bought 2000E Cortinas. Regarding the TL12, it was still in production for years after Edwardes left BL. Buy the book and read it, otherwise these discussions are futile: “your bs answer is that Acclaim and 800 were great cars and the RR couldn’t have survived at 1,900 rpm without throwing con rods.”. I didn’t say any of that; you did. The truck racing technicians in the 1980s said that the RR engine was safe to 2600rpm. At 2800 it was not safe to race. You need to read about that too. If your only research tool is YouTube, you might find a video of a hooligan driving a Fiat V8 at 2800rpm, without any problems.

In what way was the 5 series more modern than a Triumph 2.5 saloon with the new 2.3 and 2.6 6 cylinder engines and Rover V8 in it in 1977 ?.The BMW didn’t even have rack and pinion steering it still used 1950’s Zodiac style steering box just klike the E3 before it and had been in production since 1972.It then continued on in different marks and developments for decades to date.

The TL12 went out of production in 1983.Remind me when Edwardes left and when that decision would have been made.

So you’re saying that the RR was ok to 2,600 rpm.
It was obviously no problem at 1,950 where its peak power was produced up to 400 hp so WTF is all your tensile load bs v TL12 all about.When the TL12 couldn’t get past 273 hp at 2,000 rpm without either blowing it’s head off and/or wrecking it’s ends.
As opposed to the fact that putting the TL12 out of its misery was the only thing that Edwardes got right and he only did that because the bankers wanted their T45 development cash back before closing the doors and handing over to DAF.

Supposition and speculation without any factual evidence whatsoever. Prove the sentence highlighted please.

gingerfold:

Carryfast:
When the TL12 couldn’t get past 273 hp at 2,000 rpm without either blowing it’s head off and/or wrecking it’s ends.

Supposition and speculation without any factual evidence whatsoever. Prove the sentence highlighted please.

The maths regarding its leverage deficit v RR and ■■■■■■■ and the fact that the thing was removed from the options list of the Roadtrain within 3 years of launch, rather than Leyland offering a production intercooled version of it , seems proof enough.
No argument it might have got through a dyno run unscathed but that’s not the same thing as expected service life under that type of added stress at RR type specific torque outputs.

Carryfast:
In what way was the 5 series more modern than a Triumph 2.5 saloon with the new 2.3 and 2.6 6 cylinder engines and Rover V8 in it in 1977 ?.The BMW didn’t even have rack and pinion steering it still used 1950’s Zodiac style steering box just klike the E3 before it and had been in production since 1972.It then continued on in different marks and developments for decades to date.

The 5 Series came out in 1972, the Triumph 2500 in 1963- that modern. The Triumph went out of production in 1977, because it was old. The version with the Rover engines is a figment of your imagination. It did not exist.

Carryfast:
The TL12 went out of production in 1983.Remind me when Edwardes left and when that decision would have been made.

Do you have evidence that the TL12 was not made after 1983?

Carryfast:
So you’re saying that the RR was ok to 2,600 rpm.

I quoted the opinion of the race mechanic- Google it, if you don’t believe me. He said the engine would do 10 laps of Donongton Park without blowing up, if you stuck to 2600rpm. The Fiat doing higher rpm in a production vehicle is on YouTube, somewhere.

Carryfast:
It was obviously no problem at 1,950 where its peak power was produced up to 400 hp so WTF is all your tensile load bs v TL12 all about.

Tensile loads, as a result of centrifugal acceleration, are used to calculate the fatigue life of various engine parts. I hope that answers your question, which was somewhat garbled.

Carryfast:
When the TL12 couldn’t get past 273 hp at 2,000 rpm without either blowing it’s head off and/or wrecking it’s ends.

B.S.

Carryfast:
As opposed to the fact that putting the TL12 out of its misery was the only thing that Edwardes got right and he only did that because the bankers wanted their T45 development cash back before closing the doors and handing over to DAF.

What bankers? BL’s losses in the 1970s were covered by the taxpayer. How would stopping production of the engine have somehow regurgitated money that had previously been invested anyway? I know- they delivered vehicles without engines, but charged the same money for them, putting the cost savings in their piggy bank, until they amounted to the development cost. That makes sense.

[zb]
anorak:

Carryfast:
In what way was the 5 series more modern than a Triumph 2.5 saloon with the new 2.3 and 2.6 6 cylinder engines and Rover V8 in it in 1977 ?.The BMW didn’t even have rack and pinion steering it still used 1950’s Zodiac style steering box just klike the E3 before it and had been in production since 1972.It then continued on in different marks and developments for decades to date.

The 5 Series came out in 1972, the Triumph 2500 in 1963- that modern. The Triumph went out of production in 1977, because it was old. The version with the Rover engines is a figment of your imagination. It did not exist.

Carryfast:
The TL12 went out of production in 1983.Remind me when Edwardes left and when that decision would have been made.

Do you have evidence that the TL12 was not made after 1983?

Carryfast:
So you’re saying that the RR was ok to 2,600 rpm.

I quoted the opinion of the race mechanic- Google it, if you don’t believe me. He said the engine would do 10 laps of Donongton Park without blowing up, if you stuck to 2600rpm. The Fiat doing higher rpm in a production vehicle is on YouTube, somewhere.

Carryfast:
It was obviously no problem at 1,950 where its peak power was produced up to 400 hp so WTF is all your tensile load bs v TL12 all about.

Tensile loads, as a result of centrifugal acceleration, are used to calculate the fatigue life of various engine parts. I hope that answers your question, which was somewhat garbled.

Carryfast:
When the TL12 couldn’t get past 273 hp at 2,000 rpm without either blowing it’s head off and/or wrecking it’s ends.

B.S.

Carryfast:
As opposed to the fact that putting the TL12 out of its misery was the only thing that Edwardes got right and he only did that because the bankers wanted their T45 development cash back before closing the doors and handing over to DAF.

What bankers? BL’s losses in the 1970s were covered by the taxpayer. How would stopping production of the engine have somehow regurgitated money that had previously been invested anyway? I know- they delivered vehicles without engines, but charged the same money for them, putting the cost savings in their piggy bank, until they amounted to the development cost. That makes sense.

The Triumph 2.5 Mk1 was introduced in 1967.The Mk2 shortly before the 5 series in 1970.
You didn’t answer the question in exactly what way was the 5 series more modern as opposed to its inferior backward steering box and linkage set up.
The fact that it was put out of production in favour of the retrograde live axle SD1 when the V8 and the Triumph developed 2.3 and 2.6 engines all fitted is the point.Let alone going full ■■■■■■ with Acclaim and 800.

The TL12 was dropped from the Roadtrain in 1983.Where else was it used.

Why would you need to rev the RR Eagle to 2,600 rpm when it delivered its peak power of up to 400 hp at less than 2,000 rpm.What is the relevance of what a race mechanic said it would do at 2,600 rpm.
Also when was the TL12 ever even used for racing.

Why would the so called centrifugal tensile fatigue loads be any worse at 1,950 rpm than the TL12 at 2,000 rpm.
You do know that you don’t drive a truck everywhere all the time at peak power rpm.Peak torque rpm is far more important as to where it will spend more of its working life and that’s all about compressive loads just like 400 hp at 1,950 rpm is.Remind me what was the TL12’s best shot specific peak torque as opposed to the Eagle’s.

The state had a majority holding not a 100% holding obviously with the intention of selling out to the foreign competition.
Even the government used more than just tax payers’ cash to bail out Leyland.It’s obvious that DAF also had a stakeholding in the firm long before the handover which was then increased to a majority holding.
They obviously didn’t want the Roadtrain competing with the 2800/3300 at launch but they also wanted their investment cash back from what they’d put in and the TL12 wasn’t going to do that for them especially after the introduction of the 38t gross limit.
All very convenient.

Carryfast:
Why would the so called centrifugal tensile fatigue loads be any worse at 1,950 rpm than the TL12 at 2,000 rpm.

Work it out. The equation is up there^^^.

Carryfast:
You do know that you don’t drive a truck everywhere all the time at peak power rpm.Peak torque rpm is far more important as to where it will spend more of its working life and that’s all about compressive loads just like 400 hp at 1,950 rpm is.Remind me what was the TL12’s best shot specific peak torque as opposed to the Eagle’s.

Fatigue calculations take account of all load scenarios. The work is more precise than sweeping statements like “it’s all about compressive loads…” Fatigue calculations and testing deliver reliable machinery at a fair price. You should do a bit more reading, before forming an opinion.

Carryfast:
The state had a majority holding not a 100% holding obviously with the intention of selling out to the foreign competition.
Even the government used more than just tax payers’ cash to bail out Leyland.It’s obvious that DAF also had a stakeholding in the firm long before the handover which was then increased to a majority holding.

What is a “stakeholding?” Please show us evidence that DAF owned any BL shares, prior to the eventual sale.

[zb]
anorak:

Carryfast:
Why would the so called centrifugal tensile fatigue loads be any worse at 1,950 rpm than the TL12 at 2,000 rpm.

Work it out. The equation is up there^^^.

Carryfast:
You do know that you don’t drive a truck everywhere all the time at peak power rpm.Peak torque rpm is far more important as to where it will spend more of its working life and that’s all about compressive loads just like 400 hp at 1,950 rpm is.Remind me what was the TL12’s best shot specific peak torque as opposed to the Eagle’s.

Fatigue calculations take account of all load scenarios. The work is more precise than sweeping statements like “it’s all about compressive loads…” Fatigue calculations and testing deliver reliable machinery at a fair price. You should do a bit more reading, before forming an opinion.

Carryfast:
The state had a majority holding not a 100% holding obviously with the intention of selling out to the foreign competition.
Even the government used more than just tax payers’ cash to bail out Leyland.It’s obvious that DAF also had a stakeholding in the firm long before the handover which was then increased to a majority holding.

What is a “stakeholding?” Please show us evidence that DAF owned any BL shares, prior to the eventual sale.

Are you seriously trying to suggest that the TL12 was superior to the RR Eagle in any way whatsoever ?.You really think that it had 400 hp in it and more than 90 lbft per litre for less ‘fatigue’.

If DAF didn’t have a stake holding in Leyland Group before the take over how to do explain reports that DAF increased its holding in Leyland Trucks to 60% at the time of the takeover.It’s clear that it was a done deal between Thatcher and the Dutch PM.
It’s equally clear that neither side wanted the superior RR Eagle getting in the way of any of that.

Carryfast:

Carryfast:
When the TL12 couldn’t get past 273 hp at 2,000 rpm without either blowing it’s head off and/or wrecking it’s ends.

The maths .

gingerfold:
Supposition and speculation without any factual evidence whatsoever. Prove the sentence highlighted please.

Go on then CF, DO the maths so that we can see it and prove the head is going to blow off and the bottom end is going to be destroyed. You’ve claimed this umpteen times so now come up with the figures to back up your claim. You have obviously got all the data about strength of materials and the various dimension to back this up so it will be no trouble at all for you since you know the answer already.

Come on, figures : Peak pressure in cylinder, force on piston, force in connecting rod,the bending stress in the connecting rod versus failure at shear, ditto the crankshaft, the bearing pressures, the tensile strength of the big and main bearing bolts and the cylinder head studs.

cav551:

Carryfast:

Carryfast:
When the TL12 couldn’t get past 273 hp at 2,000 rpm without either blowing it’s head off and/or wrecking it’s ends.

The maths .

gingerfold:
Supposition and speculation without any factual evidence whatsoever. Prove the sentence highlighted please.

Go on then CF, DO the maths so that we can see it and prove the head is going to blow off and the bottom end is going to be destroyed. You’ve claimed this umpteen times so now come up with the figures to back up your claim. You have obviously got all the data about strength of materials and the various dimension to back this up so it will be no trouble at all for you since you know the answer already.

Come on, figures : Peak pressure in cylinder, force on piston, force in connecting rod,the bending stress in the connecting rod versus failure at shear, ditto the crankshaft, the bearing pressures, the tensile strength of the big and main bearing bolts and the cylinder head studs.

Fair enough the odds are the head won’t blow off literally the gasket will obviously blow long before that point and we’re talking more a case of reduced end bearing service life.So it probably won’t destroy the dyno shed.Although all bets are off if we try for the 1,250 lbft at 1,200 rpm and 400 hp at 1,950.

The typical tensile strength of truck main bearing and head bolts is more than 150,000 psi.So assuming that’s any guide a 7% reduction in leverage at the crank, let alone 16% in the case of other types, is going to mean a large increase in the force exerted on the end bearings and/or head fastenings at equivalent specific torque output.
Because cylinder pressures acting on the piston area and con rod is where all that force is generated at the end of the day.Alleviating that by multiplying less or equivalent force on the piston with more leverage obviously helps.

I don’t get the stupid arguments being put up against what is accepted design practice.
So far using the example of a bus engine operating at 3,800 rpm to Eagle engines used for racing turning over at 2,600 rpm.When this is all about the TL12’s ( non ) ability to produce almost 100 lbft per litre at less than 1,500 rpm and 400 hp at less than 2,000 rpm. :confused:

Carryfast:

ramone:

Carryfast:
The TL12 was obviously closer to the Gardner’s specific torque output than the Eagle’s. :bulb: :open_mouth:

So what did the 290L push out in the early 80’s?

Why the 290 why not the 300 and 340 ?.You know more than 300 hp at less than 2,000 rpm and more than 900 lbft torque.Obviously with a lot more potential than that for the ‘last’ versions.

But no Edwardes decided that Leyland needed the Acclaim, 800 and the TL12 all the no hopers together to deliberately wreck the firm. :unamused:

Because the TL12 was a 273 bhp engine so you are right but the nearest comparison would be the 265 RR then how did that compare

Carryfast:

cav551:
^^^^
It is on record that the first production AEC diesel engines (A155) ran in service with the LGOC T class AEC Regals on occasions at up to 75mph, the gearing equating to 3800 rpm.

Not much use in a 32-38t truck with the design aim of 400 hp potential at less than 2,000 rpm. :confused:

Why would they be designing a 32 - 38 ton truck in the '30s ■■?

ramone:
Because the TL12 was a 273 bhp engine so you are right but the nearest comparison would be the 265 RR then how did that compare

The 265 was actually just a derated version of an engine obviously with 400 hp and more importantly almost 100 lbft per litre potential, contained in it, for customers who only needed the lower output.
How does that compare with TL12.Especially at 38t gross.
Remind me what did the TL12 have going for it v the Eagle.
All I’m hearing so far is that the Eagle had issues running over 2,600 rpm on a race track.
Don’t remember the TL12 ever being used for racing.

Carryfast:
Are you seriously trying to suggest that the TL12 was superior to the RR Eagle in any way whatsoever ?.You really think that it had 400 hp in it and more than 90 lbft per litre for less ‘fatigue’.

If DAF didn’t have a stake holding in Leyland Group before the take over how to do explain reports that DAF increased its holding in Leyland Trucks to 60% at the time of the takeover.It’s clear that it was a done deal between Thatcher and the Dutch PM.
It’s equally clear that neither side wanted the superior RR Eagle getting in the way of any of that.

You’ve actually regressed. From a position of almost accepting that tensile loads in the rotating parts of engines exist, you are back to trotting out the same old ignorance. You don’t know any fatigue test results of either of those engines. Who knows what the TL12 would have done, if they had decided to keep it going? You’ll never know, because you can’t even do the most basic calculations.

Please post the merger articles you have been reading, so we can scour them for anti-Eagle conspiracies. :laughing:

ramone:

Carryfast:

cav551:
^^^^
It is on record that the first production AEC diesel engines (A155) ran in service with the LGOC T class AEC Regals on occasions at up to 75mph, the gearing equating to 3800 rpm.

Not much use in a 32-38t truck with the design aim of 400 hp potential at less than 2,000 rpm. :confused:

Why would they be designing a 32 - 38 ton truck in the '30s ■■?

Why is the A155’s seeming ability to rev to 3,800 rpm relevant to the issue of L12/TL12 v RR Eagle.

[zb]
anorak:

Carryfast:
Are you seriously trying to suggest that the TL12 was superior to the RR Eagle in any way whatsoever ?.You really think that it had 400 hp in it and more than 90 lbft per litre for less ‘fatigue’.

If DAF didn’t have a stake holding in Leyland Group before the take over how to do explain reports that DAF increased its holding in Leyland Trucks to 60% at the time of the takeover.It’s clear that it was a done deal between Thatcher and the Dutch PM.
It’s equally clear that neither side wanted the superior RR Eagle getting in the way of any of that.

You’ve actually regressed. From a position of almost accepting that tensile loads in the rotating parts of engines exist, you are back to trotting out the same old ignorance. You don’t know any fatigue test results of either of those engines. Who knows what the TL12 would have done, if they had decided to keep it going? You’ll never know, because you can’t even do the most basic calculations.

Please post the merger articles you have been reading, so we can scour them for anti-Eagle conspiracies. :laughing:

I’ve said that the tensile loads, especially in a forced induction, truck engine, are negligible comparared to compressive loads.More leverage at the crank being the default choice to reduce those compressive loads for equivalent torque output.

What ‘fatigue results’ have you actually got for the TL12 at over 273 hp let alone over 300 hp.
How am I supposed to get results which never happened.

We do know than the Eagle was in service at up to 400 hp unlike the TL12 which sort of backs my case.

Anti Eagle conspiracies you mean like the government flogging off RR to Vickers.While putting the TL12 in the Roadtrain and conveniently splitting the truck and bus divisions for sell off to different respective foreign competitors.

[zb]
anorak:

Carryfast:
Are you seriously trying to suggest that the TL12 was superior to the RR Eagle in any way whatsoever ?.You really think that it had 400 hp in it and more than 90 lbft per litre for less ‘fatigue’.

If DAF didn’t have a stake holding in Leyland Group before the take over how to do explain reports that DAF increased its holding in Leyland Trucks to 60% at the time of the takeover.It’s clear that it was a done deal between Thatcher and the Dutch PM.
It’s equally clear that neither side wanted the superior RR Eagle getting in the way of any of that.

You’ve actually regressed. From a position of almost accepting that tensile loads in the rotating parts of engines exist, you are back to trotting out the same old ignorance. You don’t know any fatigue test results of either of those engines. Who knows what the TL12 would have done, if they had decided to keep it going? You’ll never know, because you can’t even do the most basic calculations.

Please post the merger articles you have been reading, so we can scour them for anti-Eagle conspiracies. :laughing:

I’ve ordered the Michael Edwards book anorak it should be an interesting read