Algebra 8
Posted: 12 Apr 2018, 16:05
Following on from the ‘standard’ Algebra build recently completed, moulded fuselages of the old Algebra 8 (T tail, swept back wing version) are also to be re-introduced via Cliff Evans in due course.
I have designed a new built-up wing for this version, retaining the characteristic wing sweep and E193 section, but using a carbon joiner system and implementing ailerons and flaps to hopefully give a more versatile model at a similar weight to the previous RES version.
A proving build has just started, commencing with the wing structure as shown.
The wing uses hardwood spars, faced at the rear with full span 1/16” ply webbing.
A 1/4” square hardwood jigging spar and a 10mm OD carbon joiner tube stiffen up the root end.
More or less full span control surfaces will be hinged from the dummy TE once this has had an 1/8” balsa doubler added.
The photo below shows the first wing structure with all ribs on the lower spar & web strip, with the 1/4” square jigging spar slid in through the root end ribs.
The joiner tube will go just in front of the main spar at the root end, parallel to the jigging spar.
The wings will be sheeted with 1/16” balsa and then glassed as for the standard Algebra in due course.
I have designed a new built-up wing for this version, retaining the characteristic wing sweep and E193 section, but using a carbon joiner system and implementing ailerons and flaps to hopefully give a more versatile model at a similar weight to the previous RES version.
A proving build has just started, commencing with the wing structure as shown.
The wing uses hardwood spars, faced at the rear with full span 1/16” ply webbing.
A 1/4” square hardwood jigging spar and a 10mm OD carbon joiner tube stiffen up the root end.
More or less full span control surfaces will be hinged from the dummy TE once this has had an 1/8” balsa doubler added.
The photo below shows the first wing structure with all ribs on the lower spar & web strip, with the 1/4” square jigging spar slid in through the root end ribs.
The joiner tube will go just in front of the main spar at the root end, parallel to the jigging spar.
The wings will be sheeted with 1/16” balsa and then glassed as for the standard Algebra in due course.