Van's Aircraft RV-7A, Flight Manual

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HB-YMT Airplane Flight Manual
7–26 Description of the Airplane and its Systems 01/00
7.5 Landing Gear / Brakes
7.5.1 Nose Gear
The nose gear employs a custom size custom size custom size custom size tire and tube tire and tube tire and tube tire and tube available
through Van’s. (P/N U LAMB TIRE / TUBE )
Recommended pressure is at least 25
25 25
25 psi
psi psi
psi //// 1.8
1.8 1.8
1.8 bar
bar bar
bar and
and and
and ideally
ideally ideally
ideally
45 45 45 45 psi psi psi psi //// 3+ 3+ 3+ 3+ bar bar bar bar.
The wheel itself is a “Grove 59-2A-RV” 500x5 aftermarket part
with improved performance employing an axle spacer
resulting in lower friction.
The “breakout force
breakout force breakout force breakout force”, meaning the pull required sideways to
rotate the fork when pulled at the location of the axle bolt
should be 22lbs/10
22lbs/10 22lbs/10
22lbs/10kg
kg kg
kg. If required, adjust by tightening the
large fork nut and safety with a cotter pin. Too little force
increases the risk of shimmy.
The nose-gear is free castering, differential braking
differential braking differential braking differential braking is required
for ground steering steering steering steering.
The nose gear also has special M&B requirements, consult
chapter 6 Mass&Balance for this.
7.5.2 Main Gear
Main gear employs a standard light aircraft Cleveland 500x5
wheel and brake assembly. 5:00X5
5:00X5 5:00X5
5:00X5----6
6 6
6 Tire/Tube
Tire/Tube Tire/Tube
Tire/Tube with a target
pressure of at least 25 psi 25 psi 25 psi 25 psi //// 1.8 bar and 1.8 bar and 1.8 bar and 1.8 bar and ideally ideally ideally ideally 40+ 40+ 40+ 40+ psi psi psi psi //// 2. 2. 2. 2.8+ 8+ 8+ 8+
bar
bar bar
bar.