THE BLOODY GOOSE IS DESIGNED!
After scaling it to 3" blades with the intent of quick and easy build, I realize the bloody build style doesn't allow for boat plane building... I kept on anyway. This "tiny" plane is enormous. at this scale it is still a 52" wingspan, 35" long and 4 boards, way outside of the BB WWII build parameters... I likely will start it's own thread, starting with this information.
I do wonder about the power system. I have three choices. They costs between $65-80 total. the ESC cost is very different.
The setup is to pair the motors up and attache each side to 1 esc, or two connected escs. power with with a PDB (allowing power for lights, and cameras)
I could reduce this by 67% and make it 34 11/16" wing span with 2" blades. anyway this is what I've gathered so far, I have 3 basic options, low, middle and high powered;
1 low power - 94g ($80) (similar to the original gremlin)
2-30A ESCs, 25g/pc ($12)
8-1104 4000kv 3S motors (166gT, 4.4A) 5.5g wt, ($60 total)
3" prop ($8)
2 medium power - 104g ($93) (similar to the red bottom gremlin)
2-40A ESCs, 28g/pc, 2-4S ($17 total)
8 1105 6000kv 3S motors (218gT, 9.5A) 5.9g wt ($68)
3" prop ($8)
3 High Power - 232g ($98) (nutty)
4-30A ESCs, 25g/pc ($18 total)
8 1408 3750kv 3-4S motors (535g,8S) ($80) 16.5g/pc
3" prop (included)
(this to me, is a CRAZY good deal)
Model and Battery Weights:
Estimated all up weight of the plane is (115g/board*4 board*70%) 322g+36g (4*9g) servo wt = 358g (12.6oz.)
Battery Assume 3S, 2200mAh - 170g
Wt/Thrust:
(1) 622g (1lb. 6oz.) 1.328kg T (46.8oz.)
(2) 632g (1lb. 6.3oz.) 1.744kg T (61.5oz.)
(3) 760g (1lb. 10.8oz.) 4.28kg T (9lbs 7 oz.)
Wing Area: 304si or 2.11sf, 0.196m^2
Alpha Plans:
AIO SET
Attachments
The escs are nearly the same costs.
And all said, the difference is ~$20. Not much.
I think I will go big and order the 1408's and put them with my 50A on 3s. The chart shows 15A is for 4S. So I'm thinking 12a on 3s. So 48a for 4.
Motors & Mounting
I went Big. The motors came in the other day. I have been neck deep involved with other projects right now so the amp and static thrust testing will have to wait a short while.
I will ruminate on the motor mounting situation in the mean time.
FPV and GEAR
I have a switching camera. I wanted to try something mentioned on the FTCC a LONG time ago. it involved creating mount points for your Cameras and a common base. Then running power to the magnets and using the magnets to power and attach the cameras.
As I suspect this models power to weight ratio to be stupid high, I will be playing around with using the 5000 mah 2S we use for our RC cars.
Waterproofing
for the Prototype no... but it will be part of this project, Heck Yes!
![](/proxy.php?image=https%3A%2F%2Fftforumx2.s3.amazonaws.com%2F2018%2F10%2F200875_14f6fa3453271d38a0dde51902387d45_thumb.jpg&hash=6b32d754845e4b53d43212064893f1ac)
After scaling it to 3" blades with the intent of quick and easy build, I realize the bloody build style doesn't allow for boat plane building... I kept on anyway. This "tiny" plane is enormous. at this scale it is still a 52" wingspan, 35" long and 4 boards, way outside of the BB WWII build parameters... I likely will start it's own thread, starting with this information.
I do wonder about the power system. I have three choices. They costs between $65-80 total. the ESC cost is very different.
![200856_97729faee163659478f5b8c7cfcf3f5a.png](/proxy.php?image=https%3A%2F%2Fftforumx2.s3.amazonaws.com%2F2018%2F10%2F200856_97729faee163659478f5b8c7cfcf3f5a.png&hash=2323e6f55b3582f055d6b5c85a7298e3)
The setup is to pair the motors up and attache each side to 1 esc, or two connected escs. power with with a PDB (allowing power for lights, and cameras)
I could reduce this by 67% and make it 34 11/16" wing span with 2" blades. anyway this is what I've gathered so far, I have 3 basic options, low, middle and high powered;
1 low power - 94g ($80) (similar to the original gremlin)
2-30A ESCs, 25g/pc ($12)
8-1104 4000kv 3S motors (166gT, 4.4A) 5.5g wt, ($60 total)
3" prop ($8)
![](/proxy.php?image=https%3A%2F%2Fftforumx2.s3.amazonaws.com%2F2018%2F10%2F200858_33c680557918ed912a7c2992daaf686a_thumb.jpg&hash=cfd2b267e5999ca60de7429a8028225a)
2 medium power - 104g ($93) (similar to the red bottom gremlin)
2-40A ESCs, 28g/pc, 2-4S ($17 total)
![200857_0c06a799cc3aa68fb23f061fc0b3c817.png](/proxy.php?image=https%3A%2F%2Fftforumx2.s3.amazonaws.com%2F2018%2F10%2F200857_0c06a799cc3aa68fb23f061fc0b3c817.png&hash=67f72a4bb4dc2f3006e003416ca0df2d)
8 1105 6000kv 3S motors (218gT, 9.5A) 5.9g wt ($68)
3" prop ($8)
![](/proxy.php?image=https%3A%2F%2Fftforumx2.s3.amazonaws.com%2F2018%2F10%2F200860_63ab127b80394f8f25f746e7d43cdb36_thumb.jpg&hash=482ebcfa7dec5d947e7d1c8a1e6b040b)
![](/proxy.php?image=https%3A%2F%2Fftforumx2.s3.amazonaws.com%2F2018%2F10%2F200859_fa2f6e07bbd1a9baa3e48098239ff6b1_thumb.jpg&hash=4ceee9778faf2f7481d81ace46b62755)
3 High Power - 232g ($98) (nutty)
4-30A ESCs, 25g/pc ($18 total)
8 1408 3750kv 3-4S motors (535g,8S) ($80) 16.5g/pc
3" prop (included)
![](/proxy.php?image=https%3A%2F%2Fftforumx2.s3.amazonaws.com%2F2018%2F10%2F200861_a52b3abb4ea4ae6bf88185175d1c1ee7_thumb.jpg&hash=879cf8196708d746af74e31cbc5c6ebb)
Model and Battery Weights:
Estimated all up weight of the plane is (115g/board*4 board*70%) 322g+36g (4*9g) servo wt = 358g (12.6oz.)
Battery Assume 3S, 2200mAh - 170g
Wt/Thrust:
(1) 622g (1lb. 6oz.) 1.328kg T (46.8oz.)
(2) 632g (1lb. 6.3oz.) 1.744kg T (61.5oz.)
(3) 760g (1lb. 10.8oz.) 4.28kg T (9lbs 7 oz.)
Wing Area: 304si or 2.11sf, 0.196m^2
Alpha Plans:
AIO SET
Attachments
- BSG-AiO-Alpha.pdf
329.3 KB
The escs are nearly the same costs.
And all said, the difference is ~$20. Not much.
I think I will go big and order the 1408's and put them with my 50A on 3s. The chart shows 15A is for 4S. So I'm thinking 12a on 3s. So 48a for 4.
Motors & Mounting
I went Big. The motors came in the other day. I have been neck deep involved with other projects right now so the amp and static thrust testing will have to wait a short while.
I will ruminate on the motor mounting situation in the mean time.
FPV and GEAR
I have a switching camera. I wanted to try something mentioned on the FTCC a LONG time ago. it involved creating mount points for your Cameras and a common base. Then running power to the magnets and using the magnets to power and attach the cameras.
As I suspect this models power to weight ratio to be stupid high, I will be playing around with using the 5000 mah 2S we use for our RC cars.
Waterproofing
for the Prototype no... but it will be part of this project, Heck Yes!