DC SFRA and ADS-B exemptions
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Hello to all,
I currently own a 1941 Piper J5A that was manufactured without an electrical system. I do have foreflight with stratus for traffic (ADS-B in). I am currently exempt in selected airspace, which I am aware of. Anyway, on my flight from KOBI - KCGE Cambridge, MD today, I was close to entering the 60 NM vail of the DC SFRA. All of the sudden, I thought........can I enter that special area with an ADS-B exemption? I would’ve been slightly inside of it, but didn’t take the chance. I went to KGED instead. It’s tough to find the specific details for this. Any help would be greatly appreciated.
Thanks,
Dave
6 Replies
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The transponder requirement only applies inside the 30nm ring where the DC SFRA flight plan and transponder code are required.  The only requirements to operate within the 60nm ring of the DC SFRA are that if you're operating VFR, you must have completed the DC SFRA on-line course and that you must remain below 230 KIAS airspeed.  I don't think you'll have any trouble staying below that speed limit in your J-5A.  You'll just have to stay outside the 30nm ring of the DC SFRA and abide by the "no electrical system" rules if you venture inside the 30nm Mode C veil around the Baltimore-Washington Class B Airspace, which extends out past the DC SFRA 30nm ring in many places:

(i) Outside any Class A, Class B, or Class C airspace area; and

(ii) Below the altitude of the ceiling of a Class B or Class C airspace area designated for an airport or 10,000 feet MSL, whichever is lower

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Thanks Ron,
I wonder how they can track your speed without a transponder? Being a small fabric airplane, I don’t have much of a return without one. I would equipped it, if the allowed small battery powered units.
Dave
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It's not the FAA ATC radars which are watching for intruders in the DC area.  The USAF Regional Air Defense Center at Rome NY (aka "Huntress") provides the surveillance for the DC area and has radars that can track noncooperative targets just fine, including altitude, direction, and speed.  Remember, nobody expected Russian bombers coming over the pole or across the ocean to have their transponders on..
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I wonder if they’re on edge, when the see a target that is not reporting while inside of the 60 mile ring? It’s getting harder and harder to fly an old Cub around this area. What about flying under a layer of a class C, while remaining outside of their airspace?
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Under the lip of C-space is OK as long as you stay out of the to-the-surface core and below the overhang (and any adjacent B-space).  You might want to review 91.215 and 91.225 for the details.
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Thanks again Ron. Stay safe, Dave