Scale OH-6A "Cayuse" (450 size)
- Thread starter danhampson
- Start date
danhampson
Member
I'll have to reduce my caffeine in take an hour or two before I start these. Lol
They look a lot better IRL they stand quite proud so they will show through the top coat and capture the weathering wash.
They look a lot better IRL they stand quite proud so they will show through the top coat and capture the weathering wash.
danhampson
Member
The only problem with super glue is if you make a mistake it could get very messy, with the PVA if ive made a mistake i can just wipe it with a damp rag, dry and reapply.
There are kits available from starwood models in the US or redlodge helicopters in the UK, they are both PVA based
There are kits available from starwood models in the US or redlodge helicopters in the UK, they are both PVA based
danhampson
Member
Went for a remaiden with the new head and blades. And things didn't got too well. She wouldn't lift off until full collective was applied.
I made the noob mistake of not checking the pitch. So after some head scratching it was time to take my camera man home.
I've just finished setting the pitch up ( 12° not 6.5°), so weather permitting we will try again tomorrow.
I'm going to do some work on the mechanics later I want to turn the ESC around and move the motor Wire's to the the rear of the frame this will give me better access to the battery cable.
I made the noob mistake of not checking the pitch. So after some head scratching it was time to take my camera man home.
I've just finished setting the pitch up ( 12° not 6.5°), so weather permitting we will try again tomorrow.
I'm going to do some work on the mechanics later I want to turn the ESC around and move the motor Wire's to the the rear of the frame this will give me better access to the battery cable.
danhampson
Member
V5 rivets.
After some research I found out that talc can be mixed with the PVA to thicken it up this has made the rivets hold there shape.
Sorted the pitch out and turns the ESC around. I've added some yellow tape to the tips of the main blades for visibility.
All set for test flight #2
After some research I found out that talc can be mixed with the PVA to thicken it up this has made the rivets hold there shape.
Sorted the pitch out and turns the ESC around. I've added some yellow tape to the tips of the main blades for visibility.
All set for test flight #2
danhampson
Member
I'll post some shots of the riveting equipment tomorrow. They have taken a lot of experimenting to get them right.
danhampson
Member
very nearly had a disaster this morning, I took off and all seemed well for the first few seconds until the heli gave a strange kick.
i managed to land her with no other damage.
All damage id now repaired and she is ready to fly again.
i managed to land her with no other damage.
All damage id now repaired and she is ready to fly again.
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danhampson
Member
i'll check it over later Tony. They were old gears, probably the original set that came with the kit, i cant remember changing those. i have changed the bevel gears a few times when the tail has come down hard.
Below is a shot of the equipment that i use to apply the rivets the bottles are what vaping liquid come in and the needle cap is for filling atomizers with e-liquid, the needle caps can be purchased from most vaping stores and are cheap £0.75 ($0.50), the needle caps come with a small bottle (10ml) when purchased and will fit most e-liquid bottles.
The glue for the rivets is 2 parts PVA 1 part talc, the talc helps the PVA to keep its shape and stops it spreading out while drying.
Below is a shot of the equipment that i use to apply the rivets the bottles are what vaping liquid come in and the needle cap is for filling atomizers with e-liquid, the needle caps can be purchased from most vaping stores and are cheap £0.75 ($0.50), the needle caps come with a small bottle (10ml) when purchased and will fit most e-liquid bottles.
The glue for the rivets is 2 parts PVA 1 part talc, the talc helps the PVA to keep its shape and stops it spreading out while drying.
danhampson
Member
Test flight #3
The tail held well under hard pitch pumps and the heli felt pretty stable. Ive upped the gains on the gyro a bit as the heli felt very loose on decent, this has made it a lot more locked in.
Ive going to put a few more flights in this week to fine tune the 3gx but over all im happy with the performance.
The tail held well under hard pitch pumps and the heli felt pretty stable. Ive upped the gains on the gyro a bit as the heli felt very loose on decent, this has made it a lot more locked in.
Ive going to put a few more flights in this week to fine tune the 3gx but over all im happy with the performance.
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danhampson
Member
Seems to fly really nicely.
Those skids look HUGE!
The skids are for a trex 600, i had them laying about so thought they would be good to keep the larger tail blades away from the ground.
Im planning on heading out to the field again in the morning (no video tomorrow).
some more testing and tuning with the T450, and a bit of fun with the protos and T150.
ive added a few more rows of rivets (its a slow process).
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danhampson
Member
I wouldn't recommend them as training gear, I tried them because I couldn't get 500 skids there and then. And they vibrant on 450 when its running a HS of around 2800 but they seem OK at lower HS around 2200.
I've just been strapping a couple of lipos to the bottom of the Heli for ballast.
I've just got to wait for the wind to drop (12mph gusting 29mph), its forecast the same until Monday morning. I don't want to do any more work on the fuse until it's been test flown.
I've just been strapping a couple of lipos to the bottom of the Heli for ballast.
I've just got to wait for the wind to drop (12mph gusting 29mph), its forecast the same until Monday morning. I don't want to do any more work on the fuse until it's been test flown.
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danhampson
Member
I ended up getting a test flight in with the ballast attached (366g) to the heli, the heli flew surprisingly well. Ever thing was fine until there was a gust for wind and the nose would turn into the wind, to try to cure this i have removed the home made tail blades and replaced them with modified protos 500 tail blades (waiting for the weather to test again).
I did another dry fit of the mechanics in the fuse (got a bit carried away putting parts on), to measure the rises for glueing.
I did another dry fit of the mechanics in the fuse (got a bit carried away putting parts on), to measure the rises for glueing.
danhampson
Member
im flying in HH tony, ive tried rate mode and really dont like it.
The heli was holding in 8mph winds but when there were gusts (12mph) it turned into the wind, i ran 3 HS (2000 80%, 2200 90%, 2400 100%. all approx) none of them made any difference.
The protos blades have a wider chord and are a fraction longer so im hoping they fix it.
The heli was holding in 8mph winds but when there were gusts (12mph) it turned into the wind, i ran 3 HS (2000 80%, 2200 90%, 2400 100%. all approx) none of them made any difference.
The protos blades have a wider chord and are a fraction longer so im hoping they fix it.