mastermalpass086 Show full post »
mastermalpass086
Actually, on second thoughts, refunding them seems like too much effort considering what they cost... Maybe I'll make a beast-mode parkjet with them or something.

upload_2019-1-13_15-21-58.png 
BRB - Building another nosecone.
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bogusbandit56
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Actually, on second thoughts, refunding them seems like too much effort considering what they cost... Maybe I'll make a beast-mode parkjet with them or something.

[ATTACH=full]57433[/ATTACH]

It`s their bloody shipping cost that cost the money, I think a lot of people are peed off with them and their so called customer service( none existent).
You might as well hang on to those props, they will be useful for later twin projects.
I was going to say something about taking cooling from the central oil cooler or supercharger cooler.
Unless you are an actual paid up member of the Scale Police, don`t get to hung up on prop sizes. Who can see them at 100 feet doing 1200rpm?
Wot, no Depron?
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mastermalpass086
Tru dat, I could see how well she flies with a 9-incher. Still, scaled to 11 inches - I got it wrong first - notice the blue line representing the prop goes further than that on the blueprint, I scaled it up a bit more to match - the wingspan is now 1016mm/40inches. Should build and fly a bit more comfortably now!
BRB - Building another nosecone.
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bogusbandit56
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Tru dat, I could see how well she flies with a 9-incher. Still, scaled to 11 inches - I got it wrong first - notice the blue line representing the prop goes further than that on the blueprint, I scaled it up a bit more to match - the wingspan is now 1016mm/40inches. Should build and fly a bit more comfortably now!

If you had gone for an early mk1 you could have used a cheap 11 inch slow fly prop
As a matter of interest which motor will you be fitting.
Wot, no Depron?
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mastermalpass086
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If you had gone for an early mk1 you could have used a cheap 11 inch slow fly prop
As a matter of interest which motor will you be fitting.


Wheels and prop are the only parts I already have for this project. The illustrated motor and ESC sizes are based on what the Su-34 is carrying:

upload_2019-1-13_16-30-43.png 

Got these based on the recommended parts in the RC Powers Master Parts list:

upload_2019-1-13_16-40-58.png 

Fitted with a 4-bladed 6incher, the Su-34 cruises between 1/3-1/2 throttle, and can pull a vertical zoom at Max. It was a bit under-powered on the two-blader; 2/3 throttle was the minimum cruising speed and high-alpha was easy to get stuck in. With a 3-blade 11-incher, I imagine this power system will give a nice half-way performance between the Su-34's two extremes.
BRB - Building another nosecone.
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bogusbandit56
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Wheels and prop are the only parts I already have for this project. The illustrated motor and ESC sizes are based on what the Su-34 is carrying:

[ATTACH=full]57434[/ATTACH]

Got these based on the recommended parts in the RC Powers Master Parts list:

[ATTACH=full]57436[/ATTACH]

Fitted with a 4-bladed 6incher, the Su-34 cruises between 1/3-1/2 throttle, and can pull a vertical zoom at Max. It was a bit under-powered on the two-blader; 2/3 throttle was the minimum cruising speed and high-alpha was easy to get stuck in. With a 3-blade 11-incher, I imagine this power system will give a nice half-way performance between the Su-34's two extremes.

You`re going to have problem`s swinging a 9 or 10 inch prop with a 2826 2200kva motor even on 2s. The amp draw will kill your esc and possibly burn the motor and battery out.
For swinging 10 inch props I use 1000kva or 1200kva motor.
I have just bought 2 2830 1300kva motors from Banggood around £6.30 each free shipping.
Oh bugger they`ve just gone up
https://www.banggood.com/Racerstar-BR2830-1300KV-2-4S-Brushless-Motor-For-RC-Airplane-p-1125801.html?cur_warehouse=CN
They are doing these at a pittance £3.80. Worth a punt don`t you think?
https://www.banggood.com/Racerstar-BR2212-1000KV-2-4S-Brushless-Motor-For-RC-Airplane-p-1083190.html?rmmds=search&cur_warehouse=CN
Wot, no Depron?
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mastermalpass086
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You`re going to have problem`s swinging a 9 or 10 inch prop with a 2826 2200kva motor even on 2s. The amp draw will kill your esc and possibly burn the motor and battery out.
[...]
They are doing these at a pittance £3.80. Worth a punt don`t you think?
https://www.banggood.com/Racerstar-BR2212-1000KV-2-4S-Brushless-Motor-For-RC-Airplane-p-1083190.html?rmmds=search&cur_warehouse=CN


BOOM! Bought three. The Blenheim can use these too! That's what, the third disaster I've avoided now? Seriously thanks a million!
BRB - Building another nosecone.
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bogusbandit56
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BOOM! Bought three. The Blenheim can use these too! That's what, the third disaster I've avoided now? Seriously thanks a million!

When I started out again with foamies and electric motors I didn`t have much of a clue what I was doing and wrecked a beautiful Fokker D8 which was one of my first foamies because of mismatched prop motor and esc.
If I had known about this site I could have avoided that mishap.
I`m happy to help.
Wot, no Depron?
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bogusbandit56
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BOOM! Bought three. The Blenheim can use these too! That's what, the third disaster I've avoided now? Seriously thanks a million!

The Blenheim would make a nice score and fold project if you`re going for the early greenhouse nose.
Wot, no Depron?
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mastermalpass086
My Grandfather did fly that variant, and it does look pretty cool - here's a photo my Dad got of one that came to Torbay Airshow in May last year:

upload_2019-1-13_18-5-6.png 

Fun fact - see the letters YP on the fuselage? That's 23 Squadron, there's a slim chance my Grandad flew this very plane! Not with that canopy though - that had to be remade - after the war someone took the original canopy off and turned it into a car haha!

I prefer the look of the Mk IV myself, and my Grandad flew that as well before he moved to Mozzies. Hmm... More I look at the Mk I, though, the more I like it.
BRB - Building another nosecone.
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bogusbandit56
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My Grandfather did fly that variant, and it does look pretty cool - here's a photo my Dad got of one that came to Torbay Airshow in May last year:

[ATTACH=full]57438[/ATTACH]

Fun fact - see the letters YP on the fuselage? That's 23 Squadron, there's a slim chance my Grandad flew this very plane! Not with that canopy though - that had to be remade - after the war someone took the original canopy off and turned it into a car haha!

I prefer the look of the Mk IV myself, and my Grandad flew that as well before he moved to Mozzies. Hmm... More I look at the Mk I, though, the more I like it.

The greenhouse cockpit does make this early variant look old fashioned and the mkiv looks better.
I think your granpa was lucky to survive flying both variants as they were about obsolete at the outbreak of war in 1939 and took heavy casualties in the battle field.
Wot, no Depron?
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mastermalpass086
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I never trusted feeding the vtx using power provided off the ESC feeding radio and servos. With most 2s or 3s systems ...you can just plug you vtx directly to the battery.


POW! Re-wiring the Camera and VTx power supply through a LC Filter into the battery cables did it! No more flickering video feed, no matter how crazy I go with the sticks. Weather permitting, this yellow bipe should be in the air soon!

Also, in testing I learned another thing - never use hot glue to secure a VTx! The thing will comfortably get warm enough to melt its way free! I've re-mounted it by feeding the antenna through a hole in a plywood plank, and added a little wedge to tighten it into place. This give the device all-round breathing space as well, which is nice.

upload_2019-1-14_20-33-40.png 
BRB - Building another nosecone.
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bogusbandit56
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POW! Re-wiring the Camera and VTx power supply through a LC Filter into the battery cables did it! No more flickering video feed, no matter how crazy I go with the sticks. Weather permitting, this yellow bipe should be in the air soon!

Also, in testing I learned another thing - never use hot glue to secure a VTx! The thing will comfortably get warm enough to melt its way free! I've re-mounted it by feeding the antenna through a hole in a plywood plank, and added a little wedge to tighten it into place. This give the device all-round breathing space as well, which is nice.

[ATTACH=full]57444[/ATTACH]

Excellent news. I have learned some thing new today RE FPV
Cue Aretha Franklin
Wot, no Depron?
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KK
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POW! Re-wiring the Camera and VTx power supply through a LC Filter into the battery cables did it! No more flickering video feed, no matter how crazy I go with the sticks. Weather permitting, this yellow bipe should be in the air soon!

Also, in testing I learned another thing - never use hot glue to secure a VTx! The thing will comfortably get warm enough to melt its way free! I've re-mounted it by feeding the antenna through a hole in a plywood plank, and added a little wedge to tighten it into place. This give the device all-round breathing space as well, which is nice.

[ATTACH=full]57444[/ATTACH]

Glad that LC Filter did it. Good luck and post some videos of flying...
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