Dapol BR 9F. Let's discuss!

[draskouasshat]

Who around here might happen to have one of these @peteski?  How well do they run? What are the actual measurements in regards to driver diameter, driver spacing, and driver wheelbase? Id like to see these measured with a calipers in actual numbers please. No fancy 1:148 measurements please as I'm looking to use the mechanism for some projects.

Adam Draskovich

[peteski]

Sorry Adam - I don't own (or have access to) one of those.

[draskouasshat]

I figured you'd have one of these! I'd really like to see if i could use these for Santa fe and UP 2-10-2s! If my math is right going from 1:148 to 1:160, these should be working .01 of 63" drivers.

Adam Draskovich

[Rich_S]

I don't know if this video would be of any interest? You want to fast forward to 6:13 time stamp

[Cajonpassfan]

Clever idea Adam, but I don't own one either. Maybe I should
Still in search of a proper heavy 2-10-2 mechanism...

The proto 9F has 60" drivers, so in 1:160 that translates to 60"x1.081=64.86" (if the model drivers were to exact 1:148 scale which may or may not be true).

A more important dimension may be the fixed (driver) wheelbase. The 9F has a wheelbase of 21'-8", which at 1:160 would be 23.41" (vs. the 3800 22' even). Again, without the actual model dimensions, I'm just guessing at it. Still, maybe lot better than the Concor heavy which has a fixed wheelbase of almost 25'.

The 9F model has a prominent blind center driver, that's a challenge as the 3800's (or the TTT's) had all flanged drivers. Also it appears to be powered by a tender mounted motor and a shaft....
It would be nice to find a project junker 9F somewhere....

Good luck, Otto [ Guests cannot view attachments ]

[draskouasshat]

Good news otto, ive taken the plunge. The good news is, these aren't too horribly expensive new. Hopefully the mechanism measurements will work for my needs and i can start cranking out the numerous 2-10-2 and 4-10-2s i need to ten on the pass!
[ Guests cannot view attachments ]

Adam Draskovich

[peteski]

Nice!

"UNWATCH"?  That is as bad as "misremembering". English language sure is evolving.

We now know where you live - there is no hiding from the TRW trolls!   

[draskouasshat]

Nice!

"UNWATCH"?  That is as bad as "misremembering". English language sure is evolving.

We now know where you live - there is no hiding from the TRW trolls!   

Come on over @peteski! Luckily,  most people don't like to start nonsense with a 33yo 6'4" 250ibs ex bouncer lol!

Adam Draskovich

[peteski]

Come on over @peteski! Luckily,  most people don't like to start nonsense with a 33yo 6'4" 250ibs ex bouncer lol!

Adam Draskovich

Oh yeah right, just joshin' you!   

[draskouasshat]

That was the funniest part of the nsc convention this past summer. People looked at the model i entered,  then me, Thebes the model lol. They couldn't imagine my big paws working on things this small! I fit the big burly BNSF Signal Construction Foreman look but definitely surprise people when they see I'm also a model railroader!

Adam Draskovich

[VonRyan]

I own a 9F. Only downside to it is that the driveshaft between the tender and the engine sometimes becomes disconnected when I take it out of it's plastic cradle to run it at shows. All five drive axles are geared. The middle driver set is blind. The motor is in the tender, along with the NEM 6-pin harness for converting to DCC, and it is kinda a tight fit under that tender shell. I had to do a good bit of filing to get the shell to sit right after I plugged a decoder in mine.

Of course, mine is still serving as a proper 9F, in early BR livery, hauling a rake of mineral wagons.

[draskouasshat]

Do you have some calipers you could measure driver diameter on the tread and flange?  Also I'd like the individual driver spacing along with driver wheelbase?
That would be fantastic even though I've already bought one!  Lol
Thank you in advance!

Adam Draskovich

[peteski]

That was the funniest part of the nsc convention this past summer. People looked at the model i entered,  then me, Thebes the model lol. They couldn't imagine my big paws working on things this small! I fit the big burly BNSF Signal Construction Foreman look but definable surprise people Eben they see I'm also a modern railroader!

Adam Draskovich

I would have loved to have seen the looks on those people's faces. John @Lemosteam also has big paws and manages to do some really fine work in N scale.

[draskouasshat]

The major go here is to get away from cutting up two kato mikados to make just one 2-10-2 or 4-10-2. The money really adds up when you have 10 or more separate locomotives to build to model cajon.

Adam Draskovich

[mmagliaro]

Here's my "wet rag" on this idea... Sorry.

That video clip made the drivers look very widely spaced, so I hunted on the web for some side photos, and I don't have a good feeling about this.  They all show the model as having very widely-spaced drivers.

I found a photo of the N Scale BR 9F placed next to a ruler.  Granted, it's not a super-accurate measurement, because I am not holding the model here with a caliper, but it looks like the drivers are 63" on the tread, and 66" across the flanges.  That would only be about .009" flange depth, so I'm sure that's a little off.

The wheelbase, however, is easier to get an accurate measurement on from the photo because it's a much longer measurement.
308.66" = 25'-8-3/4"

From a second photo of the model, that is closer-up and more perpendicular to the camera, I get 26'-9" (assuming a 63" driver diameter).  Even if it's only a 60" driver diameter, I still get 25'4".  I think it's going to have too wide a wheelbase.

That's really wide, but it agrees with how the model looks in photos - very "gap toothed" between the wheels.

ConCor's 2-10-2 had just under a 25' wheelbase, but this one is even wider.