Re: The "Galloping Ghost" Handbook
Posted: 11 Sep 2021, 17:32
The issue is that if voltage drops you have to trim down and in turns you get elevator down. Guys flying aerobatics were accepting this...with this configuration some were able to fly inverted and make attempts on a bunt.
If for whatever reason the actuator stopped failsafe is full elevator up...determalizer?...but absolutely no glide condition.
Today with BEC and constant voltage it wouldn't be a big issue as it was.
We have also to remember that most models were basically rudder only with some elevator assistance and throttle control was not distinct as today when you fly electric/separate servo, most setting in the old days gave you 3-5 positions for throttle.
Rudder authority would remain the same in either choice as both would decrease with voltage drop but with "inverted " you have to trim down instead to give trim up, a standard GG Rand have on the total trow about 2/3 up and 1/3 down.
If you flew with a cage or the Controlaire actuator instead you got about the same up as down but were still voltage dependent.
It's all a matter of geometry and voltage on Rx pack.
I used to fly a X-103 this way at the expenses of a fresh battery pack for each flight and after 3-4 minutes you would start noticing so at the end I switched to conventional setup, probably I wouldn't have done it if it was electric and had a nice BEC.
If for whatever reason the actuator stopped failsafe is full elevator up...determalizer?...but absolutely no glide condition.
Today with BEC and constant voltage it wouldn't be a big issue as it was.
We have also to remember that most models were basically rudder only with some elevator assistance and throttle control was not distinct as today when you fly electric/separate servo, most setting in the old days gave you 3-5 positions for throttle.
Rudder authority would remain the same in either choice as both would decrease with voltage drop but with "inverted " you have to trim down instead to give trim up, a standard GG Rand have on the total trow about 2/3 up and 1/3 down.
If you flew with a cage or the Controlaire actuator instead you got about the same up as down but were still voltage dependent.
It's all a matter of geometry and voltage on Rx pack.
I used to fly a X-103 this way at the expenses of a fresh battery pack for each flight and after 3-4 minutes you would start noticing so at the end I switched to conventional setup, probably I wouldn't have done it if it was electric and had a nice BEC.