grant31781
Oct 12, 2003, 09:04 PM
General specs. fuse length 42 inchs. wing 76x16 alierons are 2.5 inchs included in the 16. H stab area 276 sq inchs 12x24 1 in taper elevator 4.25x24. Wing is symmetrical front side of the spar is located at 25% or 4 inchs from the LE. Engine 50cc quadra. landing gear 1/4 inch thick flat bar from a local building supply store same as homedepot.
.http://rcgroups.com/gallery/data/500/17944spar_detail-med.JPG?79
The pic above shows how the 2 peice spar is built. The wing is 76x16 symmetric. the spar halfs are 38 inchs long. There are 2 doublers one on each side of the main spar. Each one is 16 inchs long. 8 inchs of the doubler is glued to the spar half One doublere on each spar half. Look at the pic. 5/32 music wire holds the LE and TE together through 4mm coro.
http://rcgroups.com/gallery/data/500/17944wing_setup-med.JPG?2332
This is a pic of the wing assembled ready for flight. There are 4 1/4 inch steel bolts that hold the spar together. 4 1/4 inch nylon bolts hold the wing to the fuse. The front wing bolts go through a 8 inch peice of 1/4 inch lattice to cut down on side to side wing flex. Notice all of the oil and gas on the wing. The air is sucking fuel from the carb and the muffler is leaking oil like mad! Will rvt work on a gassers muffler too?
http://rcgroups.com/gallery/data/500/17944fuse_shot-med.JPG?7744
This is how i do my wing bolts on my big spads. I run the bolts from the inside of the fuse . The pvc scrap on the front wing bolts is tapped for the 1/4 inch bolts. Its used to keep the wing bolts from pushing down into the fuse when the wing is slid over the bolts. Notice the battery access hatch on the rear of the fuse. I put the battery back there for balace reasons and so i could check it when quick charging for heat build up.
http://rcgroups.com/gallery/data/500/17944floor_shot-med.JPG?5727
This is just a pic of the plane. I made a fancy canadian gutter pipe fuel tank holder on the bottom of the fuse. I cut 3 inchs off the nose of the plane because i had to add 1lbs 2ounce of balast to the tail to get the balance right. So i guessed that 3 inchs would do it and it did. Thanks Cunck for posting the link to the buggy wheels. I bought 6 of them and these are great light weight wheels.
http://rcgroups.com/gallery/data/500/17944table-med.JPG?5171
This is a side view of the plane. The plane still wants to nose down when inverted. I cant figure out why it doing it. To me the incedence looks like it may be a tad negitive. I would thing it would climb inverted when negitive. Any ideas?
Auw is between 13 and 14 lbs.
Flight report. Since i cut the nose down and lost over a pound of weight she flys much better. Rolls rate is great very quick. If i kick in rudder with alieron man this thing really speed up on the roll rate. I have tried flat spins or any of that yet but she flys much better. The balance is still at 30%. with the nose chopped down and the weight cut down the plane lands fine now at idle. She does seem to come in a tad hotter and steeper than i am used to but i am getting much better flying her
.http://rcgroups.com/gallery/data/500/17944spar_detail-med.JPG?79
The pic above shows how the 2 peice spar is built. The wing is 76x16 symmetric. the spar halfs are 38 inchs long. There are 2 doublers one on each side of the main spar. Each one is 16 inchs long. 8 inchs of the doubler is glued to the spar half One doublere on each spar half. Look at the pic. 5/32 music wire holds the LE and TE together through 4mm coro.
http://rcgroups.com/gallery/data/500/17944wing_setup-med.JPG?2332
This is a pic of the wing assembled ready for flight. There are 4 1/4 inch steel bolts that hold the spar together. 4 1/4 inch nylon bolts hold the wing to the fuse. The front wing bolts go through a 8 inch peice of 1/4 inch lattice to cut down on side to side wing flex. Notice all of the oil and gas on the wing. The air is sucking fuel from the carb and the muffler is leaking oil like mad! Will rvt work on a gassers muffler too?
http://rcgroups.com/gallery/data/500/17944fuse_shot-med.JPG?7744
This is how i do my wing bolts on my big spads. I run the bolts from the inside of the fuse . The pvc scrap on the front wing bolts is tapped for the 1/4 inch bolts. Its used to keep the wing bolts from pushing down into the fuse when the wing is slid over the bolts. Notice the battery access hatch on the rear of the fuse. I put the battery back there for balace reasons and so i could check it when quick charging for heat build up.
http://rcgroups.com/gallery/data/500/17944floor_shot-med.JPG?5727
This is just a pic of the plane. I made a fancy canadian gutter pipe fuel tank holder on the bottom of the fuse. I cut 3 inchs off the nose of the plane because i had to add 1lbs 2ounce of balast to the tail to get the balance right. So i guessed that 3 inchs would do it and it did. Thanks Cunck for posting the link to the buggy wheels. I bought 6 of them and these are great light weight wheels.
http://rcgroups.com/gallery/data/500/17944table-med.JPG?5171
This is a side view of the plane. The plane still wants to nose down when inverted. I cant figure out why it doing it. To me the incedence looks like it may be a tad negitive. I would thing it would climb inverted when negitive. Any ideas?
Auw is between 13 and 14 lbs.
Flight report. Since i cut the nose down and lost over a pound of weight she flys much better. Rolls rate is great very quick. If i kick in rudder with alieron man this thing really speed up on the roll rate. I have tried flat spins or any of that yet but she flys much better. The balance is still at 30%. with the nose chopped down and the weight cut down the plane lands fine now at idle. She does seem to come in a tad hotter and steeper than i am used to but i am getting much better flying her