Airline Pilot Central Forums - Are King Air 300's Part 23 or 25?

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Are King Air 300's Part 23 or 25?

We just purchased a King Air 300 (MTW 14,000 lb.).

I know that the King Air 90's and 200's are Part 23 being under 12,500 lb.

The reason I'm asking is I'm needing to replace the outdated KLN900 GPS with "something" but although the Garmin GPSs are STC'd for the B300, it specifies Part 23 aircraft, and I'm told most B300's are Part 25. I've been told that some B300s are Part 23 but I can't find out how to determine which Part my aircraft was certified under.

I contacted Raytheon and they sent me a bunch of paperwork and regs that didn't answer the question, or I'm not smart enough to figure it out.

If the Garmin equipment can't be installed in the B300 for $15,000 the only other option is either a used non WAS FMS for $30,000 or a new WAS FMS for $115,000.

Any suggestions?

No experience in any 300s here...but here is the typical unhelpful government text from the TCDS that mentions both:

Quote:

Certification Basis Special Federal Aviation Regulation (SFAR) 41C, effective September 13,
(Model 300, 300LW) 1982, see NOTE 7 or 11 (300 only); Part 23 of the Federal Aviation
Regulations (FARs), effective February 1, 1965, through Amendment 23-9;
Amendment 23-11; Amendment 23-14, Paragraphs 23.143(a), 23.145(d),
23.153, 23.161(c)(3), 23.173(a), 23.175, 23.427, 23.441, and 23.445;
Amendment 23-15, Paragraphs 23.951(c) and FAR 23.997(d); Amendment 23-23,
Paragraph 23.1545(a); Amendment 23-26, Paragraphs 23.967 and 23.1305(n);
Special Conditions No. 23-47-CE-5, including Amendments Nos. 1, 2, 3
dated November 15, 1982, and 4 dated October 17, 1986; Part 25 of the
FAR, Paragraph 25.929, effective February 1, 1965, Amendment 25-23,
Paragraph 25.1419; Amendment 25-41, Paragraph 25.831(d); Part 36 of
the FARs, through Amendment 36-10, and SFAR 27, through Amendment 27-4.
Compliance with ice protection has been demonstrated in accordance with
FAR 25.1419 when ice protection equipment is installed in accordance
with the Equipment List.

TCDS

However, here is a picture of a King Air 300 for sale with a Garmin 400 in it...so it's at least possible:

http://www.contrailjets.com/King_Air...op_800x600.jpg
KingAir300

You might be thinking of the 300LW. It was a Light Weight version with a GTOW of 12.5 because of the fees in Europe. The easiest way to get the answer is to talk to the avionics shop.

The avionics shop is the one asking me to check and confirm which part my aircraft is certified under....

Regarding the picture of the 300 with the Garmin....I've been advised that the Garmin GPSs don't interface 100% with the EFIS 85 in the picture so that's probably bot a good thing for that owner....also advised that some avionics shops will install the Garmin in part 25 King Airs even when they shouldn't....that's part of the clarification I'm trying to get.

You're getting some crazy run around. My old avionics shop had no problem installing Garmins into Part 23 or 25 aircraft.

From what I remember with the Garmin 430 and the standard King Air Collins electro mech HSI you'll have to fly in heading mode to track any of the GPS courses. Kind of a hassle, and defeats the wonder of the GPS, doesn't it? I've flown one switched to a Sandel EHSI and all is good. I don't know if the King Air Collins EHSI's work that way.

Quote:

Originally Posted by chazbird (Post 967442)

We have a Sperry HSI (steam gauge) and are currently having that problem (having to fly in heading mode) with the KLN900 GPS. The avionics shop said that we don't have the role steering component installed in the plane and that would fix the problem, then Sperry autopilot will then slave to the GPS approach. Does that mean anything to you?

Again I've heard that the Garmin equipment doesn't fully integrate with the Collins EFIS-85 but I haven't heard anything about that problem associated with the Sperry equipment????

The picture of that King Air 300 has Bendix King EFIS-50. FWIW, It's my understanding that with EFIS 85 you have to retain the center MFD because it is the backup to the pilots primary flight displays.

I believe you are correct.