Search found 136 matches

by CanukinUSA
Sun Aug 29, 2021 10:50 pm
Forum: Technical/Operations
Topic: Airplane Air Circulation Questions
Replies: 10
Views: 1650

Re: Airplane Air Circulation Questions

https://aip.scitation.org/doi/10.1063/5.0044720
-->

"Simulation of aerosol transmission on a Boeing 737 airplane with intervention measures for COVID-19 mitigation" Paper on Cabin Air Circulation simulation in the 737-700 and 737-800 for Covid-19 spread. For Details go to:
https://aip.scitation.org/doi/10.1063/5.0044720

Jump to post
by CanukinUSA
Sun Aug 29, 2021 9:04 pm
Forum: Technical/Operations
Topic: Airplane Air Circulation Questions
Replies: 10
Views: 1650

Re: Airplane Air Circulation Questions

For more details on the aircraft air circulation system in use in most airliners and more please refer to a study that was done in 2002 by the National Research Council in the US. It is a little dated and some of the newer aircraft (787, etc.) use quite different systems for air circulation but does...

Jump to post
by CanukinUSA
Sun Aug 29, 2021 7:40 pm
Forum: Technical/Operations
Topic: Can you expand on this quote on speed stability in the CV-880M to help me understand it better?
Replies: 11
Views: 1676

Re: Can you expand on this quote on speed stability in the CV-880M to help me understand it better?

Another correction: The type certificate 4A27 is for the Convair 880 only. The model 22 has General Electric Turbojet CJ805-3 or CJ805-3A Engines with 11200 lbs. rated thrust. The model 22M has General Electric Turbojet CJ805-3B engines at a higher rated thrust of 11650 lbs. There are additional cha...

Jump to post
by CanukinUSA
Sun Aug 29, 2021 6:29 pm
Forum: Technical/Operations
Topic: Can you expand on this quote on speed stability in the CV-880M to help me understand it better?
Replies: 11
Views: 1676

Re: Can you expand on this quote on speed stability in the CV-880M to help me understand it better?

Substitute 880 for 990 in my comments. If you need to see the certification standards that the Convair 880/990 was certified to check the FAA Type Certificate Data Sheet 4A27 now held by AeroXin Industries, Inc.and the Aircraft Model is called 22 (Convair 880) and 22M (Convair 990). For more details...

Jump to post
by CanukinUSA
Sun Aug 29, 2021 3:59 am
Forum: Technical/Operations
Topic: Can you expand on this quote on speed stability in the CV-880M to help me understand it better?
Replies: 11
Views: 1676

Re: Can you expand on this quote on speed stability in the CV-880M to help me understand it better?

The Convair 990 was certified long before 14 CFR Part 25 (FAR Part 25 for some people) existed so any references to it are not what the aircraft was certified to. It was certified under CAM 4b SR-422B "Airplane Airworthiness; Transport Categories" as far as I can determine. For details sea...

Jump to post
by CanukinUSA
Tue Aug 10, 2021 5:47 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

Corrections to comments on previous posts: 1) When the 737 Max simulator was manufactured the Company was not CAE it was TRU. It was only recently bought up by CAE and is now part of CAE. 2) Where and by whom the software was written would depend on whether the system was simulated with software and...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 10:18 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

Every year the regulatory agencies must perform some of the original simulator checks to keep the simulator approved (certified) for training when they visit a simulator training center for every simulator to ensure that they match flight test data. The Flight Test Data has way more information on t...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 8:27 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

According to the FlightGlobal 2021 Civil Simulator Census there are at least 34 Boeing 737 Max Full Flight Simulators now certified worldwide at Level-C or Level-D. There are 4 additional Simulators listed in China that may be certified as their certification status is not listed. I believe that Sur...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 7:44 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

The only 737 Simulator listed in the FlightGlobal 2021 Civil Simulator Census for the 737 in Ethiopia is at Ethiopian Airlines and is a 737NG Level-D Full Flight Simulator built by Flight Safety International. If there is another 737 Max simulator it is not certified right now. Given that the Simula...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 6:30 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

Ethiopian can brand their simulator to whatever the Ethiopian CAA allows them to do, and I am certain that the simulator that was approved is the one at Boeing which would have had to be approved to assist the aircraft certification. If the Ethiopian CAA approved the Ethiopian Airlines simulator for...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 4:12 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

I agree with you that the simulator should not have been branded as a 737 MAX simulator as it is not until it is accepted as such with the proper flight model. That is obviously a marketing gimmick by the simulator manufacturer to sell simulators. Many of the simulators can be loaded with different ...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 3:39 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

I noted in that article that there was only one simulator at Boeing that was approved for the MAX. That was probably the simulator used by Captain Forkner when he was making his comments in the IMs and emails. The airline simulators had not been given the flight model for the MAX as a result probabl...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 3:20 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

The other problem with simulating high manual pitch trim forces at high speeds is that someone would have to go out in flight test and obtain data on the manual pitch trim force's. This would likely be a very high risk test condition. The forces if they are even simulated (which I do not recall bein...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 3:04 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

What they are referring to is the higher control forces on the manual trim wheel at high speeds which does not surprise me as I do not remember there being any manual pitch trim forces standards required to be simulated on simulators which to me is a serious oversight at least for the 737 and simila...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 2:24 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

We don’t know that without knowing the details on the particular flight model installed on the simulator. Like I stated in a previous post it sounded to me that the MCAS including the low speed feature quite likely could have been in the flight model installed on the first full flight training simul...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 1:11 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

Even if the simulators were sold as NGs they would not be legal to use for 737 MAX training until the regulator approved them after 737 MAX flight model simulator acceptance. This again raises questions about the Flight Model that was being sent to the simulator manufacturers and airlines from Boein...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 12:47 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

The internal engineering simulators are located in Seattle not in Florida. I have used them for testing before I retired from Boeing Flight Test. The simulator in Florida would have been first 737 MAX Full Flight Training Simulator at the training center in Florida. The FAA has to use a Properly FAA...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 12:12 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

The simulator has to be accepted (certified) during an aircraft certification program so that the FAA AEG group can use it to determine the pilot training requirements for pilots who will be flying that aircraft. I witnessed aircraft certification programs (at other manufacturers besides Boeing) bei...

Jump to post
by CanukinUSA
Mon Aug 09, 2021 4:20 am
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

I am certain that Boeing Management was happy with that media confusion because it distracted everyone from the fact that the simulator is based on the Flight Model that is created from Flight Test Data that comes from the manufacturer (i.e. Boeing). I suspect that Captain Forkner was evaluating the...

Jump to post
by CanukinUSA
Sat Aug 07, 2021 8:43 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

As I stated in an earlier post the ARs/UMs are responsible to the FAA when they are doing certification activities I find it hard to believe that a change could be done to a flight critical system such as Flight Control Systems and they as an FAA Designee (subject to all of the same FAA orders as a ...

Jump to post
by CanukinUSA
Sat Aug 07, 2021 5:47 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

The UMs are almost always the senior engineers in a particular group like 737 Flight Controls. They spend most of their time as design Engineers and then put on an FAA hat when the Certification Activities are happening if the Certification and Testing is delegated by the FAA. I find it almost impos...

Jump to post
by CanukinUSA
Sat Aug 07, 2021 2:11 am
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

In the Commercial Aircraft world, the important designation for an Engineer/Pilot is called Unit Member (UM). The Unit Member is a member of the Organizational Delegation Authority (ODA) in the company which is the group of people who represent and are responsible to the FAA in the company to ensure...

Jump to post
by CanukinUSA
Fri Aug 06, 2021 2:45 am
Forum: Technical/Operations
Topic: Carbon Composite Fuselage Issues
Replies: 18
Views: 2451

Re: Carbon Composite Fuselage Issues

I should have said new materials in Commercial Airline Aircraft. I understand that they have been around for quite a while, but they have mostly been used in military aircraft which although they are subject to greater structural loads, they are not in use 12 to 15 hours a day like a typical airline...

Jump to post
by CanukinUSA
Thu Aug 05, 2021 9:41 pm
Forum: Civil Aviation
Topic: Call to cancel DPA with Boeing on 737MAX Crashes
Replies: 145
Views: 16206

Re: Call to cancel DPA with Boeing on 737MAX Crashes

I find it hard to believe that at any point for the 737 since the 737-100 was certified and onwards that the Angle of attack vane could be assumed to be perfect like it was by many personnel and/or someone at Boeing for the MAX. Someone was either trying to cover it up since it now fed data into MCA...

Jump to post
by CanukinUSA
Thu Aug 05, 2021 7:40 pm
Forum: Technical/Operations
Topic: Carbon Composite Fuselage Issues
Replies: 18
Views: 2451

Re: Carbon Composite Fuselage Issues

No doubt that he is. He has a history of that with Airbus, Boeing, Bombardier, etc... But unfortunately, some of the issues that seem to be developing with Carbon Composites as they are in service seem to give him that ability. It is the hazards of progress in using newer materials in Aircraft Struc...

Jump to post
by CanukinUSA
Thu Aug 05, 2021 4:48 pm
Forum: Technical/Operations
Topic: Carbon Composite Fuselage Issues
Replies: 18
Views: 2451

Carbon Composite Fuselage Issues

It looks like both major manufacturers (Airbus and Boeing) are having issues with Carbon Composite Fuselages. Qatar forced to ground A350s over fuselage degrading. For details go to: https://abcnews.go.com/International/wireStory/qatar-airways-grounds-13-airbus-a350s-fuselage-degrading-79290044 It s...

Jump to post
by CanukinUSA
Wed Aug 04, 2021 2:15 am
Forum: Technical/Operations
Topic: Thrust limits for derated jet engine?
Replies: 5
Views: 1317

Re: Thrust limits for derated jet engine?

It is not clear to me that you understand what derate means. Every engine has been tested to determine the maximum thrust it can produce (typically on an engine test stand). This is usually more thrust than the engine is rated for due to Engine life and reliability considerations. Then taking in acc...

Jump to post
by CanukinUSA
Tue Aug 03, 2021 6:29 pm
Forum: Civil Aviation
Topic: Bombardier CL 600 down near Truckee, California
Replies: 136
Views: 27383

Re: Bombardier CL 600 down near Truckee, California

I was not too clear with my comments in an earlier post it appears. I am certain that a good programmer could write an app in a few minutes to do the calculations, but do we really want flight crews calculating what should be design issues while descending and doing circling approaches like this one...

Jump to post
by CanukinUSA
Tue Aug 03, 2021 4:18 am
Forum: Technical/Operations
Topic: FAA Demands that Boeing Flight Manuals give more detail on Pilot Emergency Procedures
Replies: 2
Views: 668

Re: FAA Demands that Boeing Flight Manuals give more detail on Pilot Emergency Procedures

The AFM is organized in a legally correct fashion and that is the property that makes it not very useful on the flight deck. OK for lawyers though.

Jump to post
by CanukinUSA
Tue Aug 03, 2021 3:55 am
Forum: Civil Aviation
Topic: Bombardier CL 600 down near Truckee, California
Replies: 136
Views: 27383

Re: Bombardier CL 600 down near Truckee, California

The main problem with the circling area is that how many pilots would know what the Circling Area Radius for a particular airport is? And know how to calculate it if they don't? And who has time to calculate it while on an approach in the aircraft? The calculation took me about 30 minutes, and I was...

Jump to post
by CanukinUSA
Tue Aug 03, 2021 3:42 am
Forum: Technical/Operations
Topic: At what height above field elevation is takeoff thrust reduced [increased] to climb thrust
Replies: 12
Views: 1112

Re: At what height above field elevation is takeoff thrust reduced [increased] to climb thrust

There are a lot of variables that may affect where a pilot reduces to climb thrust: (Sorry if this adds to your confusion over thrust reduction altitude) 1) How long the engines may be operated at takeoff thrust. All Engines are certified for 5 minutes at takeoff thrust. Many Engines now are approve...

Jump to post
by CanukinUSA
Tue Aug 03, 2021 2:51 am
Forum: Civil Aviation
Topic: Bombardier CL 600 down near Truckee, California
Replies: 136
Views: 27383

Re: Bombardier CL 600 down near Truckee, California

Interestingly as far as I can tell they do not have any correction for temperature in their formulas.

Jump to post
by CanukinUSA
Tue Aug 03, 2021 2:48 am
Forum: Technical/Operations
Topic: FAA Demands that Boeing Flight Manuals give more detail on Pilot Emergency Procedures
Replies: 2
Views: 668

FAA Demands that Boeing Flight Manuals give more detail on Pilot Emergency Procedures

In Seattle Times tomorrow there is an interesting article on the FAA requirements for what is to be contained in the Airplane Flight Manuals (AFM) for future Aircraft Certifications. It is an interesting requirement for information to be added to the Airplane Flight Manuals, but most airlines and th...

Jump to post
by CanukinUSA
Mon Aug 02, 2021 8:31 pm
Forum: Civil Aviation
Topic: Bombardier CL 600 down near Truckee, California
Replies: 136
Views: 27383

Re: Bombardier CL 600 down near Truckee, California

Using the latest version of FAA Order 8360.3E TERPS "Terminal En-Route Procedures" issued on 09/17/2020 online, I have calculated the True Airspeed and Circling Approach Radius for the approach and circling maneuver at KTRK. TERPS is available online at: https://www.faa.gov/regulations_pol...

Jump to post
by CanukinUSA
Sat Jul 31, 2021 3:48 am
Forum: Civil Aviation
Topic: Bombardier CL 600 down near Truckee, California
Replies: 136
Views: 27383

Re: Bombardier CL 600 down near Truckee, California

Part 121 Operators are allowed to perform Circling Approaches legally if they meet the proper conditions. I have attached the section from FAA Order 8900.1 "Flight Standards Information Management System". I would assume that because of the risk management (safety) issues (as they are not ...

Jump to post
by CanukinUSA
Fri Jul 30, 2021 1:37 pm
Forum: Civil Aviation
Topic: Bombardier CL 600 down near Truckee, California
Replies: 136
Views: 27383

Re: Bombardier CL 600 down near Truckee, California

As stated that report is an engineering report that was done by an engineering firm for the airport authorities of possible approach and departure procedures in the future. It is not a environmental study so noise abatement is only mentioned when it could affect a future procedure like causing the d...

Jump to post
by CanukinUSA
Wed Jul 28, 2021 11:55 am
Forum: Civil Aviation
Topic: Bombardier CL 600 down near Truckee, California
Replies: 136
Views: 27383

Re: Bombardier CL 600 down near Truckee, California

[/quote] But the Challenger is a Category C for the straight-in approach minimum (1.3Vso = 137). If you circle above 140 kts, then you use the Category D minimum. The straight-in RNAV Rwy 11 would have been legal if not for the runway length.[/quote] Do you mean a straight-in RNAV Rwy 20 would have ...

Jump to post
by CanukinUSA
Wed Jul 07, 2021 3:54 am
Forum: Civil Aviation
Topic: Boeing 777X Testing/Production Thread - 2021
Replies: 669
Views: 146148

Re: Boeing 777X Testing/Production Thread - 2021

It is most likely due to the issue that there was not an ADS-B receiver location on the ground within line of sight of the aircraft. The radio frequencies used for ADS-B are typically Line of sight limited.

Jump to post
by CanukinUSA
Wed Jul 07, 2021 3:10 am
Forum: Civil Aviation
Topic: Boeing 777X Testing/Production Thread - 2021
Replies: 669
Views: 146148

Re: Boeing 777X Testing/Production Thread - 2021

The data you see for aircraft accidents does not need to be at the rates that you need to see when testing Aircraft Flight Control Systems, Aircraft Stability and Control and. Aircraft structural issues on the aircraft such as flutter, loads, etc.

Jump to post
by CanukinUSA
Thu Jun 17, 2021 5:08 am
Forum: Technical/Operations
Topic: Price of Full Motion Simulators
Replies: 7
Views: 2665

Re: Price of Full Motion Simulators

The flight pack is obtained by the manufacturer during it’s Flight Test program. You not only need to obtain an aircraft but must also install the correct instrumentation on it which takes time and money and has to be removed after. The simulator requires better data in it’s flight model then the ai...

Jump to post
by CanukinUSA
Mon Jun 07, 2021 5:05 pm
Forum: Technical/Operations
Topic: Price of Full Motion Simulators
Replies: 7
Views: 2665

Re: Price of Full Motion Simulators

Assuming that you are talking about a Civil Airliner Level-D Full Flight Simulator. When I finished working in the late 1990s for the world's largest simulator manufacturer the price for a single Civil Airliner Level-D Full Flight simulator was about 13 million US$. I expect that it has increased si...

Jump to post
by CanukinUSA
Sat May 22, 2021 1:20 am
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

https://fsims.faa.gov/wdocs/8900.1/v04% ... 03_001.pdf
-->

Section 1 of Chapter 3 above helps in understanding the performance operational requirements from the FAA
For details go to:
https://fsims.faa.gov/wdocs/8900.1/v04% ... 03_001.pdf

Jump to post
by CanukinUSA
Fri May 21, 2021 10:16 pm
Forum: Technical/Operations
Topic: Technical Agreement between UK CAA and EASA
Replies: 0
Views: 1616

Technical Agreement between UK CAA and EASA

I see that the UK Civil Aviation Authority and the European Aviation Safety Agency have signed an agreement after the UK left the EU over which Technical Standards including Airworthiness Standards will be accepted. For details go to: https://www.easa.europa.eu/sites/default/files/dfu/eu-uk_tip_draf...

Jump to post
by CanukinUSA
Fri May 21, 2021 8:59 pm
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

Another correction: There was a Special FAR (SFAR) Part 41 for Turboprop and Jet Aircraft up to 19,000 lbs. which like SFAR Part 23 cannot be used anymore for Aircraft Certification. So I was not completely incorrect in mentioning 19,000 lbs.. For details go to the previous post link from the FAA. A...

Jump to post
by CanukinUSA
Fri May 21, 2021 8:31 pm
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

Correction: I just looked up the rules currently for SFAR Part 23 applied to aircraft with Passenger Seats of 10 to 19 passengers and up to 12,500 lbs MTOW. Not 19,000 lbs as I stated in a previous post. For all the details for aircraft performance from the FAA please check the "Flight Standard...

Jump to post
by CanukinUSA
Fri May 21, 2021 11:03 am
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

Not being an expert on EASA regulations, that appears to be similar to what used to be Special Part (SFAR) Part 23 which were temporary standards for commuter aircraft that were in place when the commuter airlines in the US started to expand rapidly using aircraft with greater then 9 up to 19 seats ...

Jump to post
by CanukinUSA
Fri May 21, 2021 9:18 am
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

cs23 and cs25 are airworthiness standards like 14 CFR (FAR) Parts 23 and 25 in the US.

Jump to post
by CanukinUSA
Mon May 17, 2021 2:06 pm
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

Not necessarily. I flew for an Air Taxi Part 135 operator for a few years and we were legally allowed to operate ferry flights to position for commercial flights using Part 91 rules which allowed the landing distances to be calculated without the 60% factor. I did not totally agree with that but it ...

Jump to post
by CanukinUSA
Mon May 17, 2021 12:50 pm
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

There are two aircraft performance standards that have to be considered for an aircraft. 1) There is the performance standard that the aircraft was required to meet so that it can obtain a type certificate (“Airworthiness Standard”). This is what the regulator and potential manufacturer agree on whe...

Jump to post
by CanukinUSA
Thu May 13, 2021 3:20 pm
Forum: Technical/Operations
Topic: Class B Performance and Cs 23 Normal / commuter
Replies: 16
Views: 2214

Re: Class B Performance and Cs 23 Normal / commuter

I am puzzled as to why using the aircraft for survey would cause the aircraft to now be a commuter category aircraft? One would think it would be a normal category aircraft and only be a commuter aircraft when used for Commuter Airline use with passengers. Are you certain that your interpretation is...

Jump to post