Table 1 LAA Mandatory Modifications Rev 15 Mar 2012
MOD REF NO |
DESCRIPTION |
COMMENTS |
47-001 |
Detachable wing panels and fittings with aileron auto-connect |
Supplied with the UK plans package. The inclusion of the aileron auto-connect system is optional |
47-002-1 |
Beam spars and wing assembly detail |
Supplied with the UK plans package |
47-002-2 |
Transportation fittings |
Supplied with UK plans package. The outboard fittings are optional if builders do not intend to stow the wings in this configuration. The inboard fittings ARE required to carry the front jury strut – see Mod 47-006 |
47-003 |
Cub style undercarriage for 1966 fuselage |
Supplied with UK plans package
|
47-004-1 |
Continental engine mount: Centre section struts: Lift struts and fittings |
Supplied with UK plans package |
47-004-2 |
Upper motor mount compression strut |
Supplied with UK plans package |
47-005 |
Lift strut attachment plate extended 0.5 ins to 4-13/16 ins from 10 swg S510 steel |
See Mod 10233 – Table 2 |
47-006 |
Jury struts to front lift struts |
See PFA letter dtd 13 August 1998 |
47-008-1 |
Passenger harness attachment |
SEE MOD 11452 TABLE 2 |
47-008-2 |
Pilot lap strap attachment |
See PFA letter & drgs 8 April 1998 |
47-008-3 |
Pilot shoulder harness attachment |
See PFA letter & drgs 8 April 1998 |
47-008-4 |
Cabane roll wires specified as 1/8 “ diameter |
See PFA letter 8 April 1998 |
47-008-5 |
Deletion of joggles on carry-through straps |
See PFA letter 8 April 1998 |
Notes on Wills drawings |
Tail bracing wires to be 3/32 “ 7x17 stranded cable |
|
Notes on Wills drawings |
Aileron hinges from MS20001P6 piano hinge |
|
Notes on Wills drawings |
Equivalent UK spec materials and gauges to be used for all steel fittings |
|
10170 |
Fitment of bobbins to strengthen lift strut attachment plates when strut attachment plates are extended by 1” in 12 swg material |
Only applicable if the lift strut attachment plates are extended by 1 “ in 12 swg. See PFA letters 13 August 1998 and 8 January 1999 |
Table 2 Prototype Modifications Rev 15 Mar 2012
Mod No: |
Description |
Comment |
|
|
10233 |
Lift strut attachment plates extended by 0.5 ins in 10 swg to give greater clearance at attachment point |
See 47-005 |
|
|
10352 |
Centre section trailing edge cut-out, baggage compartment and access hatch |
Rounded cut out Approved
by PFA 18 May 1999. ( Peter Hill ) |
|
|
10353 |
Installation of tail wheel steering horns and strengthening of lower area of rudder |
Approved by PFA 8 June 1999. See also Mod 10495 |
|
|
10495 |
Surface mounted rudder and elevator horns |
Mandatory if Mod 10353 fitted |
|
|
10531 |
Control column assembly – modified aileron crank manufactured from flat plate |
Approved by PFA 12 Oct 2000 ( Peter Hill ) No drawing on web site. |
|
|
10595 |
Double pulley assembly under rear seat for elevator cables. Single pulleys at sides of rear seat for rudder cables |
|
|
|
11002 |
Centre section cut out & baggage compartment |
Angular cut-out ( Steve Bryan) |
|
|
11452 |
Passenger seat harness lap strap attachment |
To supersede PFA/047/MOD. 1 Sheet 1( PART ) dtd 8 April 1998. To be used in conjunction with Mod 47-008-1. See also PFA letter dtd 8 April 1998 |
|
|
11453 |
Centre section cut out for pilot access |
Hinged flap alternative to 10352 or 11002 |
|
|
12654 |
Large main undercarriage wheels |
|
|
|
12655 |
Leaf type tail spring & steerable tail wheel |
|
|
|
12706 |
Rudder pedals for pilot to replace rudder bar |
|
|
|
13052 |
Jury strut attachment to rear lift strut |
|
|
|
13061 |
Undercarriage safety cables |
|
|
|
10994 |
Circular centre section cut out |
( Ian McLeod ) No drawing on web site. |
|
|
10995 |
Modified elevator actuating system to eliminate cable fouls |
|
Applicable to metal fuselage only ( Ian McLeod ) No drawing on web site. |
Table 3 Engineering Concessions Rev 15 Mar 2012
These concessions may be applied without reference to LAA Engineering but must be in this section of the Declaration of Design documents
Concession No |
Description |
|
0451 |
Modification to No 2 rib truss to avoid cable foul |
|
0348 |
Innermost wing rib re-positioned 0.5 ins outboard to avoid attachment plates bolt foul |
|
0356 |
Lengthened brackets for wing drag brace cables. Applies to all three types of fitting |
|
Table 4 Alternative Engine Installations Available
for both wood and metal fuselage types
LYCOMIMG 0-235 – L2C WITH STRAIGHT MOUNT POINTS |
|
LYCOMING 0-235 L2C WITH DYNAFOCAL MOUNT |
|
CORVAIR AUTO MOTIVE – WILLIAM WYNN CONVERSION |
|
ROTAX 912 ULS |
DRAWING SETS & LAA MOD NOS AVAILABLE ON REQUEST
FOR A SMALL DONATION TO CLUB FUNDS