Lefthand aeromotor installation.

General tips, techniques, hints, tools and the also where can I find it? We cover both construction and maintenance submissions.

Moderator: Moderators

Ladibird
Mags On
Posts: 40
Joined: Tue Jun 27, 2017 9:54 am
Closest Airfield: fawa
Has liked: 0
Been liked: 0

Lefthand aeromotor installation.

Unread post by Ladibird » Thu Oct 08, 2020 8:24 am

Could one install a lefthand motor into a taildragger. If so, would all the forces be reversed (from left hand rudder to right hand), and would this aircraft be "exceptional" to handle?
Jean Crous
Tree Tousand
Tree Tousand
Posts: 3469
Joined: Tue Mar 02, 2010 10:10 pm
Closest Airfield: FASX
Location: Barrydale Western Cape
Has liked: 375 times
Been liked: 171 times

Re: Lefthand aeromotor installation.

Unread post by Jean Crous » Mon Oct 12, 2020 8:05 am

Ladibird wrote:
Thu Oct 08, 2020 8:24 am
Could one install a lefthand motor into a taildragger. If so, would all the forces be reversed (from left hand rudder to right hand), and would this aircraft be "exceptional" to handle?
No it would not be "exeptional", the same inputs , but just to the OPPOSITE side would be required. I have done such an exercise , and still here to tell the tale ...... :wink:
The rudder trimtab will need adjusting to the opposite side, and if an aileron trimtab is fitted, it too will need adjusting.
Jean.
Cubby Aircraft Factory
Suppliers of Nitrate, Butyrate, Adhesive, Fabric.
New front seat solo Cubby Renegade
Cell : 072 6716 240
SACAA Approved Person 402
Email: cubbyaircraftfactory@gmail.com
User avatar
Ugly Duckling
Seven Thousand
Seven Thousand
Posts: 7173
Joined: Sat Mar 18, 2006 2:24 pm
Closest Airfield: Brakpan Benoni FABB
Location: Waterkloof
Has liked: 693 times
Been liked: 612 times

Re: Lefthand aeromotor installation.

Unread post by Ugly Duckling » Mon Oct 12, 2020 8:26 am

The vertical stab may be offset from the center line, like the Cygnet, which would require to be reworked first.
Paul Sabatier EAA Ch 575, SSSA, ERGC, ERFC, AeroClub
Long time Cygnet builder
The object is to fly, it does not matter what the object is!
User avatar
StressMerchant
1k poster
1k poster
Posts: 1424
Joined: Mon Jul 03, 2006 8:57 am
Closest Airfield: Cab
Location: The Matrix
Has liked: 43 times
Been liked: 145 times

Re: Lefthand aeromotor installation.

Unread post by StressMerchant » Wed Oct 14, 2020 10:59 am

Consider that traditional British engines rotate in opposite directions to traditional American engines. So the basic design is not an issue. The classic DH Chipmunk can be fitted with a Lycoming engine under an STC, so presumably the engine rotation directions are opposite for the basic and modified aircraft. (Or were the Lycomings the "opposite handed" variants?)

As Ugly Duckling points out, a few aircraft do have specific features to aid with control. Offset fins, asymmetric control rigging, etc.
The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair.
- Douglas Adams

Return to “Building and Maintaining Aircraft”