Differences in models AeroDynic ....

[fireball3]

hello everyone,


For AeroDynic; What is the difference between the Model 24 series, and the Model 25??


Thanks


Cyril

 

[toon80]

For what I know, Model 24 is for bars with a speaker grille in the middle.


-AeroDynic Model 24 4 sections per side


-AeroDynic Model 24M 3 and half sections per side


-AeroDynic Model 24S 3 sections per side


Model 25 are all-light with NO speaker sections in the middle


2 sides of 5 sections each. Maybe this is where the "25" comes from: 2x5(model 25)=all light as well as 2x4(model 24)= speaker in the middle


Model 22 is 2 sides of 2 sections, so I'm thinking 2x2=22....


I've never seen official statements about this but that's what I understand.


Toon

 

[fireball3]

it's a good logic!, Toon


Thank you for this info!


Cyril

 

[03crownvic]

Perfectly logical synopsis toon, congrats!

 

[toon80]

*clap clap clap* (bowing down)


-Thank you, thank you


*clap clap clap*hehehe


Does anyone know the real reason, though? Is it really this? hehe

 

[nerdly_dood]

So the extra-long ones for fire trucks would be something like a model 27? (2 sides x 7 sections)

 

[toon80]

I guess that until someone brings informations that tells otherwise, it'll be referred to as the "27" ;-)


Seriously, though, why 22, 24, 25?


And while we're here, where does the Twinsonic's "12" comes from?

 

[ryan]

And while we're here, where does the Twinsonic's "12" comes from?

Visibar=model 11


Twinsonic=model 12


aerodynic=model 24, 25


it is the basic model of each style of bars.

 

[stansdds]

So the extra-long ones for fire trucks would be something like a model 27? (2 sides x 7 sections)

Nope, the 72 inch wide Aerodynics were intended for mounting on fire apparatus and were called the "Aerohawk". Model designations were AH1 for a standard bar, AH2 for a bar with Meteors in the center panels.


As for Federal's model designations, they don't always make sense. The first rotating beacon was the model 17 in 1948, followed by the 173, 174, 175 and 176. In 1958 we got the model 15, in 1963 the model 14 and in 1964 the 184, the somewhere around 1982 the model 16 appeared. The 17 series made sense and the 14 series had three and four bulb versions as well, designated 143 and 144, but the basic model numbers just sort of jumped around and did not always follow a logical order based on development and release dates.

 

[fireball3]

stansdds, thank you for this synopsis, I am happy to know much history of vintage emergency lights with all of you!!!

 

[Jman423]

There doesn't seem to be a definitive answer here though... What are the differences between a the various model 25's and 24's? What designates independent rotators vs the single motor, gear driven models?

 

[stansdds]

Model designations beginning with "24" or "25" use a single motor and gears or drive chain, model designations beginning with "ADL" or "AH" use independent motor and reflector assemblies. The mini-Aerodynic model numbers are "22" for single motor and gear drive, "22I" for independent motor and reflector assembly version.

 

[emtanderson51]

The 24 eah also had designations after the model# such as 24EAH-T Takedowns or 24EAH-f for flashers...