BGA glider data sheet - Pilatus B4-PC11 (& -A & -AF)

Data source: Manufacturer’s Manual

Date of issue: Dec 1974

Manufacturer: Pilatus Aircraft ltd, Stans, Switzerland.

Manufactured under licence by Nippy in Japan since 1978 as the NP-100 Albatross.

Weighing Data:

Control deflections in mm

Kg Pounds

Up Down Measuring point

Max weight

350 772

BGA concession non-aerobatic max weight [+3%]
Max pilot weight (seat load)

360 795 114 252

mm Inches

Forward C of G limit (aft of datum) 280

Aft C of G limit (aft of datum)

420

Pilot position (forward of datum) 610 Min weight pilot sat fully forward

Pilot position (forward of datum) 531 Max weight pilot sat fully back

11.0 16.5 24
20.9

Ailerons

120 ± 5 58 ± 5 TE inboard end

Elevator

100 ± 5 70 ± 5 TE centre

PC11

Elevator

100 ± 5 85 ± 5 TE centre

PC11A & AF

Rudder

Left & right

TE bottom

230 ± 10

Airbrakes. 7.25 to 8.25 pounds force required to

unlock the mechanism on each wing.

Longitudinal datum: Wing root LE

Horizontal datum: Rear fuselage top 1000:80 tail down

The fixed main wheel is 147mm (5.79”) aft of datum. Distance between wheels is 3368mm (132.6”).

The retractable main wheel is 164mm (6.46”) aft of datum. Distance between wheels is 3351mm (131.9”).

Maximum speeds

Knots Kph

Knots Kph

VNE

130 240 Aerotow

88 163

Rough air

88 163 Winch / auto tow 70 130

Manoeuvre 88 163 Airbrakes open 130 240

Max winch weak link: 550 kg (Tost white) BGA concession 600 Kg (Tost blue)
Tyre pressure: Main 27 psi (1.9 bar) Tail 25 psi (2.5 bar)
Pilatus B4-PC11- Semi aerobatic, cloud flying permitted.
Pilatus B4-PC11-A - Fully aerobatic (+ 7.00, -4.79 g). Cleared for inverted flying, rolling manoeuvres and outside loops. Structurally as B4-PC11 but with toe straps, 5-point harness and increase down elevator travel.
Pilatus B4-PC11-AF - Fully aerobatic. Cleared as “A” model and for flick manoeuvres. As B4-PC11-A model but with rear fuselage strengthening to cater for flick manoeuvres. Strengthening may be factory fitted internally or external, fitted as a modification.
Span 15 meters
This sheet compiled by: Tim Macfadyen Last updated 3 Aug 2008
Distances from wheel to datum and pilot positions corrected as per Manual revisions 01473 & 01574E

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