FDNY Aerotwinsonic History and Demo

Hey its Zach from 718motorpool and today we have this FDNY aerotwinsonic, Granted ive already covered the NYPD Aerotwin on this channel but today were focusing on the FDNY bars. In the 90s my uncle was a firefighter on light duty for the FDNY and I remember he used to come by my grandparents house all the time with a square body suburban with this lightbar on and let me play in the truck. So this lightbar may have contributed to why I like lights and sirens today. So on with the video So the federal signal aerotwinsonic was introduced in 1979 and combined the internals of a federal signal twinsonic with the housing of the federal aerodynic giving it the best of both worlds. So the aerotwins were very popular in the towing industry and also popular for lower end ambulances. In 1985 the list price for a 47 and a half inch aerotwin with internal flashers like this one was 620 dollars. Adjusted for inflation that would be 1,908 dollars in 2025. The aerotwin would be discontinued around 1991 So aside from the dome configuration on these which were going to talk about. There was one major difference from the NYPD lightbars. These bars were off the shelf bars and the NYPD had a custom option of having a passenger side power cable, the off the shelf bars did not. The FDNY started using these aerotwinsonics in 1983 on Chevy suburban Battalion chiefs cars and starting in 1987 they would use them on Chiefs sedans as well. Prior to the early 2000s it was common practice for Battalion Chiefs to have suburbans and higher level chiefs to use sedans. The last vehicles to get these lightbars would be an order of 1991 Chevy Suburbans and Chevy Caprices. So this lightbar has a 1988 build date and no speaker, FDNY was a little ahead of the curve by relocating speakers to the front of the vehicles instead of keeping them in the overhead speaker housing. But due to the year on the bar I suspect this was used on either an 89 GMC suburban or an 89 Gran fury So one of the most unique features of this bar is the drivers side dome has been replaced with a passenger side dome that got flipped around. So this was not common but also not unheard to use the wrong side dome to replace a broken dome. Ive seen pictures of NYPD RMPs of the Era as well as FDNY vehicles do this. So this kind of repair is more than likely done by the FDNY shops to get the vehicle back in service faster instead of waiting weeks for a proper replacement dome. And I find it cool so I'm keeping it like this. Let me know if you agree or disagree with me in the comments or on discord. #nyc #fdny #nypd #police #history #1970s #70s #80s #1980s #90s #1990s #cars #policecars #policecar #copcar #copcars #crownvic #automobile #cars #car #plymouth #80s #1980s #documentary #chicago #firefighter #firefighters #firetruck #fireengines #fireman #maryland #statepolice Merch Store!!! https://718motorpool-shop.fourthwall.... Follow me on my other platforms! Instagram   / 718motorpool   Tiktok   / 718motorpool   Discord   / discord   Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use