Lanier Shrike 40 / Reducing Airfoil
 

All right , what you will see here is a pain in the neck lol .... no just kidding is going to be a reduction on the airfoil and on the fuselage with just one purpose .... less drag .

I'm not following the manual at all so if you know the steps or the way the Shrike needs to be building and you notice this looks like other way Yes you are right I'm just following my way , I hope she could be finished . :D

I'm not sure if this thing will be able to fly due to the change of airfoil but I want to take it like an "expriment" .

I'll save some words and let the pics speak by themselves , feel free to make any comment though .

RE: Shrike 40 / Reducing Airfoil
 

Reduction on ribs .

The last pic show all the ribs modified and original .

RE: Shrike 40 / Reducing Airfoil
 

The total amount of the reduction was 5/8" at the highest point on the first rib and proportionally on the others ribs.

RE: Shrike 40 / Reducing Airfoil
 

looking good:D

RE: Shrike 40 / Reducing Airfoil
 

Reduction on the fuselage (height) .

The pic shows 8mm but in fact it was 9mm , at the last moment I decided to move back the fire wall 1/4" so that it needed to be reduced 1mm more .

ATVVFMX thanks for the words. :D

RE: Shrike 40 / Reducing Airfoil
 

Reduction on the formers #2 ( fire wall ) and #3.

Both were reduced 3/8" (width) and 1/4" (height).

RE: Shrike 40 / Reducing Airfoil
 

Fire wall with blind nuts .....

Due to the reduction and the big block size engine I couldn't use a normal mount so I needed to make my own as a back plate mount with 1/8" aluminum sheet .

RE: Shrike 40 / Reducing Airfoil
 

Now , beginning the fuselage .

RE: Shrike 40 / Reducing Airfoil
 

A view front with the mount and the "surplus" part that needed to be cut.

RE: Shrike 40 / Reducing Airfoil
 

I needed to carve the lower front block wood to allow fit the engine and to getting out the screws of the back plate mount .

RE: Shrike 40 / Reducing Airfoil
 

To save some work rounding the nose I did use the dremel at the begining .

RE: Shrike 40 / Reducing Airfoil
 

The nose was reduced to fit a 2 1/4" spinner instead of 2 1/2" (originally). I did need to make the former #1 too . [:-]

I also did a detachable piece (see pics) to allow get out the engine .

RE: Shrike 40 / Reducing Airfoil
 

More ....

RE: Shrike 40 / Reducing Airfoil
 

Hey bro where do you fly in Monterrey?

RE: Shrike 40 / Reducing Airfoil
 

Hi evaristus ,

I'm flying at Kitty Hawk field , do you know there ???

RE: Shrike 40 / Reducing Airfoil
 

I did extend 2 1/2" the hatch forward .....

RE: Shrike 40 / Reducing Airfoil
 

More ....

RE: Shrike 40 / Reducing Airfoil
 

I also fly there,really impressed with your work,Ill be there next sunday, and gona be there today (maybe a couple fligths),member 87 at kitty hawk abscent for the last 6 months.

RE: Shrike 40 / Reducing Airfoil
 

Orale !! entonces muy probablemente debemos conocernos , yo normalmente vuelo los Sabados en la tarde , haber si un dia de estos coincidimos en el campo para hacer unos vuelitos .

Gracias por el comentario evaristus , espero que mi "experimento" pueda funcionar , creo yo que en un mes mas lo acabo , pero ya veremos.

Haber si no me regañan por el idioma . :)

Saludos.


Hector Peña . (socio #49) :D

RE: Shrike 40 / Reducing Airfoil
 

Yes I do know you, you fly really fast and with excellent technique, Im getting the groove on building with a Sig Kougar, by the way neat shop.
Evaristo Cedillo

RE: Shrike 40 / Reducing Airfoil
 

You have a PM Evaristo .

RE: Shrike 40 / Reducing Airfoil
 

Begining the wing....

I added 2 spars (spruce) parallel to the leading edge through all the wing from root to tip for a better reinforcement you know just for in case . ;)

As I did reduce the airfoil I needed cut off the rib tabs so that I needed to use some "tools" ( Mini Dv casettes box) to avoid a bend on the stock spars ( not wich I added to the wing ) during the glueing . Please see the pics for a better understanding.

On this step I spent about 2 hrs. to have all the ribs aligned before start glueing , measuring LE , measuring TE , measuring , measuring , measuring ....... this has been the only "hard" step during the build so far .

RE: Shrike 40 / Reducing Airfoil
 

Just as a note : on the pics above the right wing is the one is aligned to the plan , as I narrowed the fuse only one wing can be aligned at same time . Yes I needed to aligned twice .

RE: Shrike 40 / Reducing Airfoil
 

A closer view ....

RE: Shrike 40 / Reducing Airfoil
 

The ply brace WEB was also reduced .....