Yes it does. 25.1587, and the following AC further describes the requirements. That data is, without question, required. Period.
http://rgl.faa.gov/Regulatory_and_G...20bd265862569b3005479d7/$FILE/AC25-1581-1.pdf
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Here is the actual reg
§ 25.1587 Performance information.
(a) Each Airplane Flight Manual must contain information to permit conversion of the indicated temperature to free air temperature if other than a free air temperature indicator is used to comply with the requirements of §25.1303(a)(1).
(b) Each Airplane Flight Manual must contain the performance information computed under the applicable provisions of this part (including §§25.115, 25.123, and 25.125 for the weights, altitudes, temperatures, wind components, and runway gradients, as applicable) within the operational limits of the airplane, and must contain the following:
(1) In each case, the conditions of power, configuration, and speeds, and the procedures for handling the airplane and any system having a significant effect on the performance information.
(2) VSRdetermined in accordance with §25.103.
(3) The following performance information (determined by extrapolation and computed for the range of weights between the maximum landing weight and the maximum takeoff weight):
(i) Climb in the landing configuration.
(ii) Climb in the approach configuration.
(iii) Landing distance.
(4) Procedures established under §25.101(f) and (g) that are related to the limitations and information required by §25.1533 and by this paragraph (b) in the form of guidance material, including any relevant limitations or information.
(5) An explanation of significant or unusual flight or ground handling characteristics of the airplane.
(6) Corrections to indicated values of airspeed, altitude, and outside air temperature.
(7) An explanation of operational landing runway length factors included in the presentation of the landing distance, if appropriate.
25.103 is stall speed
25.101(f) is flight procedures (near as I can tell, written kind of weird)
25.1533 is for take off and langind weights and runway distances (wet, grooved, etc)
25.1303 is flight instruments.
To the PDF, I believe you are looking at pages 11-14 of it
25.121 is one engine inop climb performance
25.123 is enroute one engine inoperative (or 2 depending on the total number of engines)
Sections 10 and 11 of the pdf on page 14 are what I think you may have focused in on.
The only chart(s) I can find in the BeechJet are the fuel time and distance to climb charts. You can figure the gradient from that, but section 10 says the gradient must be presented (fwiw, a sea level climb to 10,000 feet is a 12.8% gradient by simple math).
Concerning section 11 above
25.111(a) is discussing one engine inoperative take off flight paths.
25.115 b and c discuss the percentage reduction that must be applied to the data derived from 25.111(a)
I've read the pdf a couple of times, and save for section 10 there, I can't find where it requires all engine operating climb data be included in the AFM. I believe this section is talking about data for one engine inoperative climbs (as it seems the pdf follows the order of part 25)
25.111 is take off path and it, as far as I can tell trying to decipher it, only talks about data and paths for one engine inoperative (25.111(a)(2))
There is nothing in part 25 subpart b (flight) that deals or talks about all engine climb performance, that I can find.
I could be very wrong, but my manuals, the manuals in the airplane and all the training material (for what it is worth) do not have a chart for all engine climb performance that gives me a gradient. The only charts are the fuel time and distance to climb and those charts are basically worthless because it assumes a take off at sea level and only gives me 5000 foot increments from 5000 foot pressure altitude to 15000 feet then 2000 foot increments from 15000 to 45000 feet. Based on the two climb profiles available.
You cannot interpolate the climb gradient from the F,T,D charts either, you could very well penetrate the obstacle plane even if your net gradient exceeds the obstacle plane gradient (you don't climb in a straight line, it is a curve).
The one place the data may be, and I don't have access to this manual, is the operational planning manual (OPM). From what I understand it isn't required to aboard the aircraft, you are not required to reference it, and thus very few operators even own them (they run about a grand or so from the manufacturer). I haven't had a chance to call Raytheon/BeechJet/Hawker yet to find out if there is even one available for the BeechJet.
Like I said, I could very well be wrong and completely missing something here.