MBB Bo 105: Difference between revisions

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==Realism==
==Realism==
The Bo105-model has one of the most realistic fdm regarding flight handling, based on collected detailed datas of the Bo105 from NASA-flight tests, flightmanuals, pilots and published scientific datas from various sources.
The Bo105-model has a very realistic fdm regarding flight handling, based on collected detailed data of the Bo105 from NASA-flight tests, flight manuals, pilots and published scientific data from various sources. Due to its unique flight character, and its nature of being a helicopter, there had been some false assumptions about the realism in the past by many users, including its current maintainer.
Due to its unique flight character, and its nature of being a helicopter, there had been some false assumptions about the realism in the past by many users, including its current maintainer.


Though the BO105 was the first helicopter with a rigid rotor head, the civilian version had never been eqipped with any helping assistence like SAS or even autopilot. The only helping assistence installed is a ForceTrim System by Springloading.  
Though the BO105 was the first helicopter with a rigid rotor head, the civilian version had never been eqipped with any flight-control assistence like SAS or autopilot. The only flight-control assistence installed is a ForceTrim System by Springloading. Only the military versions BO105 M-P, especially the armed versions, have a YAW-SAS to keep the helicopter better in place while aiming and shooting.
Only the militarian versions BO105 M-P, especially the armed versions, has a YAW-SAS to keep the helicopter better in place while aiming and shooting.
 
What is confusing to many users is, that they have to pull the stick quite back to hover the helicopter. This 45% back cyclic is completly realistic on the BO105 and these are real values, obtained from two independant sources. Depending on CoG, loads, and flight states the position of the cyclic will vary a lot anyway, so a 0% cyclic at lift-off would make problems on other flight states like fast cruise.


What is confusing to many users is, that they have to pull the stick quite back to hover the helicopter.
This 45% back cyclic is completly true and realistic on the BO105 and are real values, retrieved from two independant sources. Depending on CoG, loads, and flight states the position of the cyclic will vary a lot anyway, so a 0% cyclic at lift-off would make problems on other flight states like fast cruise.
The problem behind is that the rigging of the controls of real helicopters are mostly not symmetrical like the joysticks we use. So the problem is on the hadware side, since realistic and affordable helicopter sim controls are rare. Especially the ForceTrimSystem can't be simulated 100% realistic, and would need corresponding hardware for, which does not exist yet.  
The problem behind is that the rigging of the controls of real helicopters are mostly not symmetrical like the joysticks we use. So the problem is on the hadware side, since realistic and affordable helicopter sim controls are rare. Especially the ForceTrimSystem can't be simulated 100% realistic, and would need corresponding hardware for, which does not exist yet.  


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