| TO TEST FOR |
TEST PROCEDURE |
OBSERVATIONS |
CK |
ADJUSTMENTS |
| Control Neutrals |
Fly model straight
and level |
Use transmitter
trims to achieve hands-off straight and level flight. |
|
Adjust devises
to center transmitter trims. |
| Control Throws |
Fly model and
apply full deflection of each control. |
Check the response
rate for each control. |
|
Aileron Hi
Rate: 3 rolls in 4 seconds; Low Rate: 3 rolls in 6 seconds. Elevator
Hi Rate: for smooth square corner. Low Rate: for loop of approx. 130
ft. dia. Rudder: Hi Rate for stall turns, Low Rate to maintain knife-edge. |
| Center of Gravity |
Method 1: Roll
into near-vertically banked turn. |
1-A. Nose drops.
|
Y_N |
1-A. Add tail
weight |
|
|
1-B. Tail drops.
|
Y_N |
1-B. Add nose
weight. |
|
Method 2: Roll
inverted. |
2-A: Requires
lots of down elevator to maintain level flight. |
Y_N |
2-A. Add tail
weight |
|
|
2-B: Requires
no down or model climbs. |
Y_N |
2-B. Add nose
weight. |
| Incidence |
Method 1: Power-off
vertical dive, cross wind (if any). Release controls when model is
vertical. |
1-A. Model
continues straight down. |
Y_N |
1-A. No adjustment. |
|
|
1-B. Model
starts to pull up (to top). |
Y_N |
1-B. Reduce
incidence. |
|
|
1-C. Model
starts to tuck under (to bottom) |
Y_N |
1-C. Increase
incidence. |
|
Method 2: Remove
power and then suddenly apply power. |
2-A. Model
maintains level flight |
Y_N |
2-A. No adjustment. |
|
|
2-B. Model
tends to climb when power is applied |
Y_N |
2-B. Reduce
incidence. |
|
|
2-C. Model
tends to dive when power is applied |
Y_N |
2-C. Increase
incidence. |
| Side Thrust |
Fly away from
yourself into any wind. Pull into vertical climb. Watch for deviations
as model slows. |
A. Model continues
straight up. |
Y_N |
A. No adjustment.
|
|
|
B. Model veers
left. |
Y_N |
B. Increase
right thrust |
|
|
C. Model veers
right. |
Y_N |
C. Decrease
right thrust/ add left thrust. |
| Up/Down Thrust |
Method 1: Fly
into wind, parallel to strip at around 300 feet out. At center. pull
into vertical climb and release elevator. |
1-A. Model
continues straight up. |
Y_N |
1-A. No adjustment. |
|
|
1-B. Model
pitches up (towards top) |
Y_N |
1-B. Increase
down thrust. |
|
|
1-C. Model
pitches down (towards bottom) |
Y_N |
1-C. Decrease
down thrust. |
|
Method 2: Maintain
level flight and suddenly cut power |
2-A. Model
maintains level glide slope |
Y_N |
2-A. No adjustment. |
|
|
2-B. Model
dives when power is cut |
Y_N |
2-B. Increase
down thrust. |
|
|
2-C. Model
climbs when power is cut |
Y_N |
2-C. Decrease
down thrust. |
| Aileron Differential |
Method 1: Fly
towards yourself, pull into vertical climb, neutralize controls then
half-roll model. |
1-A. No heading
change |
Y_N |
1-A. Differential
okay. |
|
|
1-B. Heading
changes opposite roll direction (i. e. heading veers to left after
right half-roll). |
Y_N |
1-B. Increase
differential |
|
|
1-C. Heading
changes in same direction as roll command. |
Y_N |
1-C. Decrease
differential. |
|
Method 2: Fly
model on normal pass and perform 3 or more rolls |
2-A. Roll axis
on model centerline. |
Y_N |
2-A. Differential
okay. |
|
|
2-B. Roll axis
off to same side of model as roll direction (i.e. right roll, roll
axis off right wing tip) |
Y_N |
2-B. Increase
differential. |
|
|
2-C. Roll axis
off to opposite side of model as roll command. |
Y_N |
2-C. Decrease
differential. |
| Dihedral |
Fly knife-edge
pass; maintain altitude with top rudder(NOT full rudder unless needed).
Perform test in both left and right knife edge flight. |
A. Model has
no rolling tendency in knife-edge flight. |
Y_N |
A. Dihedral
okay. |
|
|
B. Model rolls
in direction of applied rudder. |
Y_N |
B. Decrease
dihedral. |
|
|
C. Rolls in
opposite directions (both tests) |
Y_N |
C. Increase
dihedral. |
| Elevator Alignment
(for models with independent elevator halves) |
Fly away from
yourself wings level, pull into inside loop Roll inverted and repeat
as above pushing into outside loop. |
A No rolling
tendency with elevator. |
Y_N |
A. Elevator
alignment is correct. |
|
|
B. Model rolls
in same direction in both inside and outside loops. |
Y_N |
B. Elevator
halves not aligned at neutral. Raise one half and/or lower other. |
|
|
C. Model rolls
in opposite direction in inside and outside loops. |
Y_N |
C. One elevator
half has more throw than the other (Model rolls to the side with more
throw). Reduce/Increase throw on one side |
| Tip Weight
(Course adjustment) |
Fly straight
& level upright, check aileron trim for wings-level. Roll inverted,
level wings, release aileron |
A. Wings remain
level. |
Y_N |
A. No adjustment |
|
|
B. Left wing
drops. |
Y_N |
B. Add weight
to right tip |
|
|
C. Right wing
drops |
Y_N |
C. Add weight
to left tip. |
| Tip Weight
(Fine adjustment) |
Method 1: Fly
away from yourself into any wind. Pull into fairly small inside loop.
(1 loop only). |
1-A. Model
exits wings level. |
Y_N |
1-A. No adjustment. |
|
|
1-B. Model
exits w/right wing low. |
Y_N |
1-B. Add weight
to left tip/subtract from right. |
|
|
1-C. Model
exits w/left wing low. |
Y_N |
1-C. Add weight
to right tip/subtract from left. |
|
Method 2: Fly
away from yourself into any wind. Push into fairly small outside loop.
(1 loop only). |
2-A. Model
exits wings level. |
Y_N |
2-A. No adjustment
|
|
|
2-B. Model
exits w/right wing low. |
Y_N |
2-B. Add weight
to left tip/subtract from right. |
|
|
2-C. Model
exits w/left wing low. |
Y_N |
2-C. Add weight
to right tip/subtract from left. |