gyro
GSN Contributor
65" Vyper Discussion Thread
- Thread starter SnowDog
- Start date
SnowDog
Moderator
From the 65" Vyper assembly manual:
Balancing: The Vyper can use a wide range of center-of-gravity locations. For your maiden, we suggest a more forward CG location, since you can always move your CG rearward to suit your flying style if necessary.
For maiden and precision flight - 170-180 mm from leading edge of wing at root
When trimming your CG, keep in mind that a “neutral†CG (one with which you can roll the airplane inverted and the airplane neither climbs nor dives) is good for 3D aerobatics, but a more forward CG (one with which you must hold some “down†elevator to keep the airplane flying straight while inverted) is often
better for precision flight and is much easier to land gracefully.
Control Throws -
Ailerons -
Low Rate 15 degrees 30% exponential
High Rate 30 degrees 70% exponential
Elevator-
Low Rate 15 degrees 30% exponential
High Rate Maximum possible throw, at least 45 degrees 75% exponential
Rudder-
Low Rate 30 degrees 30% exponential
High Rate 45 degrees 75% exponential
Make your first flight with the controls set on low rates. During the trimming phase, we recommend landing with some throttle, and not attempting to “dead stick†the airplane. This may mean you need to time your flights and keep them a bit shorter than usual. After your first flights, check all control connections and motor and prop mounts for tightness.
Balancing: The Vyper can use a wide range of center-of-gravity locations. For your maiden, we suggest a more forward CG location, since you can always move your CG rearward to suit your flying style if necessary.
For maiden and precision flight - 170-180 mm from leading edge of wing at root
When trimming your CG, keep in mind that a “neutral†CG (one with which you can roll the airplane inverted and the airplane neither climbs nor dives) is good for 3D aerobatics, but a more forward CG (one with which you must hold some “down†elevator to keep the airplane flying straight while inverted) is often
better for precision flight and is much easier to land gracefully.
Control Throws -
Ailerons -
Low Rate 15 degrees 30% exponential
High Rate 30 degrees 70% exponential
Elevator-
Low Rate 15 degrees 30% exponential
High Rate Maximum possible throw, at least 45 degrees 75% exponential
Rudder-
Low Rate 30 degrees 30% exponential
High Rate 45 degrees 75% exponential
Make your first flight with the controls set on low rates. During the trimming phase, we recommend landing with some throttle, and not attempting to “dead stick†the airplane. This may mean you need to time your flights and keep them a bit shorter than usual. After your first flights, check all control connections and motor and prop mounts for tightness.
Bushwacker
3DRCF Moderator
Ah dang it I had it all backwards.
Bushwacker
3DRCF Moderator
Question, Should I have plugged the center hole in the firewall as I did with the motor mount holes or can I use that as a reference for the new motor? Sorry about picture quality, came from my phone.
gyro
GSN Contributor
Nope. The shaft that protrudes slightly from the rear of the motor needs that opening. It also helps move air through to aid with cooling
Bushwacker
3DRCF Moderator
Sorry I wasn't very clear on this one. I meant do I need to plug that one and re drill another one like I will be doing for the motor mount bolts. Think I will be okay, it's just the bolt pattern that doesn't match up. The center is still the center right?
gyro
GSN Contributor
Yes.
Bushwacker
3DRCF Moderator
God!!! Im just so needy aren't I...:ashamed:
LOL thanks guys.
LOL thanks guys.