Re: Help, please, re "Lion"

On 18 Mar, 21:41, D7666 <d7...@xxxxxxxxxxx> wrote:
On Mar 16, 10:28 am, kevall...@xxxxxxxxxxxxxxxxxxxxxx wrote:

On 16 Mar, 09:09, "Peter Fox" <peterfoxd...@xxxxxxxxxxxxx> wrote:
The Class 47 used the body of FALCON and the innards of LION. So a Class 47
is a lion in a falcon's clothing.
That's a bit questionable.

Indeed ... but ....

While the fact that the 47 body originated
from Loughborough meant that similar construction techniques to those
of Falcon were used,

Were they ?

I thought they were very different.

Surely a 47 is an integral monocoque, whereas Falcon is a conventional
underframe design more like a 31 if one must compare it with a
Luffbruff product. (All that explains the different grille layout). I
might be wrong - relevant books not on hand right now.

I think you may, indeed be wrong. If you look at teh grilles on
Falcon you will note various diagonal members behind them. These seem
to suggest a somewhat stretched Class 47 type body.


a production Class 47 shares, or much more
closely approximates, many overall dimensions with Lion. Length,
bogie wheelbase and wheel diameter are the same,

Mainly becuase of the BTC 1960 spec dictated certain parameters: BTC
did not actually go into the detail precisely but there were certain
general specs that meant whatever any maker offered would be similar
in terms of wheel size etc because if you specifiy a certain installed
engine power + a certain max speed + a certain axle weight + and a
certain maximum speed, your drawing boards tend to the same result.

True enough. Falcon's wheels were 2" smaller than a 47's (or Lion's).


BTCdid however specify cab layout in some detail - thats why Falcon /
Lion / Duff tend to look the same at a glance - only EE bucked that as
is well known to speed up getting a prototype out they used a Deltic
shell for DP2.

Much as they specified the AC electric cabs, right down to the blue
Formica on the driving desks.


Falcon was also noteworthy as providing a useful comparison with which
to judge the efficiency (or lack thereof) of the Class 52s. When
operating alongside them it was possible to compare the relative
maintenance costs of hydraulic and electric transmissions using the
same engines.

It did and I'm sure it yielded interesting data - but that was not the
original intention.

No, I wasn't suggesting that it was. But the realisation that such a
useful comparison was available must have been a pleasant one.


This thread has reminded yet again that I must get out my NBL Type 4
tender response documents and get an item in a mag. NBL offered the
same engine options in a shell that looks like a stretched 84 (even
with oval buffers and the same cab style).

Given the robust way that 84s were built, the body design might not
have needed a lot of alteration to take a diesel engine. That having
been said, NBL's record as a diesel builder wasn't a happy one, so
perhaps it was good thing that it didn't happen.

.

Relevant Pages

  • Re: Could Falcon 9 compete with the Stick?
    ... Following them getting their Falcon 1 rocket launching successfully, ... we will soon find out how well or badly this first launch goes. ... main problem was how the heated fuel clogs up the engine. ...
    (sci.space.policy)
  • Re: Help, please, re "Lion"
    ... The Class 47 used the body of FALCON and the innards of LION. ... is a lion in a falcon's clothing. ... Falcon was also noteworthy as providing a useful comparison with which ...
    (uk.railway)
  • Re: Backfires damaged SOMETHING ....
    ... Falcon car.I replaced that engine with another six cylinder Ford ... engine.Before I got around to hooking up the exhaust pipe, ... The bus driver used to wait to get under a bridge cut the ignition, then turn it back on and got a bang out of it. ...
    (rec.autos.tech)
  • Re: Help, please, re "Lion"
    ... striping. ... As I said in my original post, D0280 was Falcon and D0260 was Lion. ... Pullman from Sheffield Victoria to London King's Cross. ...
    (uk.railway)
  • Re: First Falcon 9 Poised for Launch
    ... The Merlin 1C engine on Falcon 9, being regeneratively cooled, should have ... I'd give them less than 50% chance of having a successful first launch. ... nine engine cluster on the bottom of the first stage raises a few eyebrows. ...
    (sci.space.history)