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Mini Avispad (90%) Build Log
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«
on:
June 27, 2014, 10:19:01 PM »
maahinberi
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Mini Avispad (90%) Build Log
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I have the following electronics:
Motor: Turnigy 2826 1400kv
ESC: Turnigy Plush 40A
Batteries:
2x Turnigy Nanotech 950mah 25-50C
2x Turnigy 2200mah 20C
I wanted to build a plane using Coroplast that could fly with the 2826 motor and carry the 2200mah battery.
So, thanks to Sanjay Rai Sir and Girish Sir, I decided to make a 90% AviSpad.
Proposed dimensions:
Wingspan: 42 inches
Chord: 9 - 9.5 inches
Length of Fuse: 33 inches
I want to try and keep the All-Up weight of the plane (including a battery of 180g) to not more than 800g.
I have 3mm and 5mm coro. I plan to build everything using the 3mm coro, except the spar and formers for which I shall use 5mm coro.
I request experienced members to please provide tips regarding how I can keep the weight down.
Will try to post a detailed build log as I go along.
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Reply #1 on:
June 27, 2014, 11:29:37 PM »
prashant_rc
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Re: Mini Avispad (90%) Build Log
With 2200 mah battery, 2826 motor will be under powder, also with 42 inch wingspan requires more pull, use 2836 motor,
Mini avispad
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Reply #2 on:
June 28, 2014, 05:05:33 AM »
sanjayrai55
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Re:
Put the biggest prop the motor can take. A 9*47 or 10*47
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Reply #3 on:
June 28, 2014, 05:07:31 AM »
sanjayrai55
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Re:
And dont use landing gear
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Reply #4 on:
June 28, 2014, 07:12:52 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Twp strips of 5mm coro cut to make the spar...
Re: Mini Avispad (90%) Build Log
P1120909.jpg
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Reply #5 on:
June 28, 2014, 07:15:12 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Glued the two strips to get the spar for one side of the wing...
Feviquick sucks in everything around it into its stickiness (notice the torn newspaper) like a blackhole
Re: Mini Avispad (90%) Build Log
P1120912.jpg
(94.61 KB, 800x600 - viewed 490 times.)
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Reply #6 on:
June 28, 2014, 07:18:05 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Both sides ready...
Re: Mini Avispad (90%) Build Log
P1120916.jpg
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Reply #7 on:
June 28, 2014, 07:29:42 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Measuring 2" of dihedral and gluing in place with Hot glue. One drop of hot glue on each side, goes into the flutes of the coroplast and makes a solid joint...
Re: Mini Avispad (90%) Build Log
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Reply #8 on:
June 28, 2014, 07:30:34 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
2mm plywood glued on both sides of spar using 5min epoxy for support...
Re: Mini Avispad (90%) Build Log
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Reply #9 on:
June 28, 2014, 07:47:07 PM »
sanjayrai55
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Re: Mini Avispad (90%) Build Log
Do hurry. Taking forever
Mini Avispad (90%) Build Log
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Reply #10 on:
June 28, 2014, 07:47:57 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Sit and relax....Grab some popcorn
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Reply #11 on:
June 28, 2014, 07:52:08 PM »
sanjayrai55
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Re: Mini Avispad (90%) Build Log
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Reply #12 on:
June 29, 2014, 12:23:53 AM »
girishsarwal
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Re: Mini Avispad (90%) Build Log
Following this thread Maahin, this one will be a trend setter I believe, getting those cool number on the weight... quickest to get one in air with super easy available parts
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Reply #13 on:
July 17, 2014, 01:35:33 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Wing panel and Ailerons cut out.............
Ailerons glued to the wing panel...
Re: Mini Avispad (90%) Build Log
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AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #14 on:
July 17, 2014, 01:37:18 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Made the cutouts for the servo.
Glued the spar.
Glued reinforcement to the servo mount (Used ice cream sticks))
Re: Mini Avispad (90%) Build Log
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AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #15 on:
July 17, 2014, 01:38:03 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Scoring the Coroplast to fold it
Re: Mini Avispad (90%) Build Log
P1120975.jpg
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Reply #16 on:
July 17, 2014, 01:40:15 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Masking the ailerons with clear tape (So that excess cyano doesnt cause it to stick to the top of the wing.
Wing folded over and glued.
Re: Mini Avispad (90%) Build Log
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AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #17 on:
July 17, 2014, 01:44:16 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Wing Wrap glued. The wing is now complete....
Dimensions:-
Wingspan: 1070 mm (42 inches)
Chord: 250 mm (9.8 inches) (Including 1.5 inch ailerons)
Weight: 242 g
Re: Mini Avispad (90%) Build Log
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AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #18 on:
July 17, 2014, 01:54:20 PM »
sanjayrai55
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Re: Mini Avispad (90%) Build Log
Too heavy. The 48" wing with servos, pushrods etc should be 220-240 g
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Reply #19 on:
July 17, 2014, 02:19:47 PM »
girishsarwal
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Re: Mini Avispad (90%) Build Log
You sir are super productive today..are we on for maiden on Saturday?
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gs
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Reply #20 on:
July 17, 2014, 04:38:32 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Most probably
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Reply #21 on:
July 26, 2014, 10:44:57 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Fuselage cut out...
Firewall made...
Re: Mini Avispad (90%) Build Log
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AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #22 on:
July 26, 2014, 10:52:27 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Formers made.
Ice cream stick used to strengthen servo mounts.
Fuselage folded and formers glued in place.
Re: Mini Avispad (90%) Build Log
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, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #23 on:
July 26, 2014, 10:54:15 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Vertical Stabilizer, Horizontal Stabilizer and Firewall glued in place.
Re: Mini Avispad (90%) Build Log
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Reply #24 on:
July 26, 2014, 10:56:01 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Doublers for the Wing and Dowel rods attached.
Re: Mini Avispad (90%) Build Log
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, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #25 on:
July 26, 2014, 10:57:37 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Top of Fuselage glued in place
Re: Mini Avispad (90%) Build Log
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July 26, 2014, 01:31:58 PM »
girishsarwal
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Re: Mini Avispad (90%) Build Log
Video Video
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July 26, 2014, 04:33:56 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Servos installed
Re: Mini Avispad (90%) Build Log
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July 26, 2014, 04:34:27 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Motor installed
Re: Mini Avispad (90%) Build Log
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, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #29 on:
July 26, 2014, 04:38:05 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Other electronics installed.
Made the battery tray and installed the ESC below it.
Re: Mini Avispad (90%) Build Log
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AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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July 26, 2014, 04:39:25 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Made the hatch cover
Re: Mini Avispad (90%) Build Log
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, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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July 26, 2014, 04:39:57 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Propeller installed
Re: Mini Avispad (90%) Build Log
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, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #32 on:
July 26, 2014, 04:41:37 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Ready to fly. (Used scrap pieces of Red Vinyl temporarily to help with orientation) Will make graphics later.
Re: Mini Avispad (90%) Build Log
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AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #33 on:
July 26, 2014, 04:44:38 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Final Specifications:
Wingspan: 1070mm (42 inches)
Chord: 250mm (9.8 inches)
Length: 910mm (35.8 inches)
AUW: 852 grams
Motor used: Turnigy 2826-10 1400kv
Prop: 9x4.7 SF
Battery Turnigy 2200mah 3S 20C
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Reply #34 on:
July 26, 2014, 04:52:41 PM »
maahinberi
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AviSport Build Log
Flew 4 flights today. The model was a little underpowered and would start to drop below 60% throttle. Apart from that, it is a wonderful model. Flies like a Sport plane and flies pretty fast.
Considering that I redesigned the entire fuselage and empennage, it is no longer apt to call this an AviSpad, hence after seeing it fly, it has been renamed to AviSport.
Flies inverted very nicely with very little down stick. Also rolls and loops nicely, however these were slightly restricted due to the lack of power. (I plan on putting a slightly bigger motor)
All in all it's a wonderful plane.
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July 26, 2014, 04:55:24 PM »
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Re: Mini Avispad (90%) Build Log
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, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #36 on:
July 26, 2014, 05:18:40 PM »
sanjayrai55
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Re: Mini Avispad (90%) Build Log
Quote from: maahinberi on July 26, 2014, 04:52:41 PM
The model was a little underpowered and would start to drop below 60% throttle. Flies like a Sport plane and flies pretty fast.
Considering that I redesigned the entire fuselage and empennage,
You have not mentioned that you "ün-designed" on the spar height; the thin wing is making it behave so.
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Reply #37 on:
July 26, 2014, 06:31:27 PM »
maahinberi
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Re:
Yeah, but it didn't affect the lift and stall characteristic much. The glide is pretty decent
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #38 on:
July 26, 2014, 07:19:30 PM »
Mjet
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Re: Mini Avispad (90%) Build Log
Very clean build Maahin. Have you blunt the leading edge?
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Reply #39 on:
July 26, 2014, 07:24:39 PM »
sanjayrai55
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Re: Mini Avispad (90%) Build Log
Of course it affected the lift! That is why you have to fly with high throttle
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Reply #40 on:
July 26, 2014, 11:28:21 PM »
crazycalvin
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Re: Mini Avispad (90%) Build Log
Haha, nice flying! Miss Sanjay sir's commentary
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Reply #41 on:
July 29, 2014, 07:58:57 AM »
maahinberi
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Re:
Upgraded the motor to NTM 28-36 1400kv with a 9x6 prop. The plane flies normally at half throttle now and pretty fast at full throttle, further living up to the name "AviSport"
Loops are now perfect as the plane has enough thrust to go vertical.
Getting 5-6 minutes of flight time with a 2200mah battery.
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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Reply #42 on:
July 29, 2014, 08:56:26 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Moderator, requesting you to please change topic name to "AviSport Build Log".
Thank you
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
«
Reply #43 on:
July 29, 2014, 08:58:15 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
@Mjet
Sorry sir, missed your question.
I made three scores for the leading edge to give it a slightly rounded shape.
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
«
Reply #44 on:
July 31, 2014, 10:32:48 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
AviSport gets a new look
Re: Mini Avispad (90%) Build Log
IMG_20140729_191431.jpg
(61.73 KB, 800x600 - viewed 691 times.)
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
«
Reply #45 on:
July 31, 2014, 10:41:40 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Update:
The new motor really has given this plane a new life.
Inverted flight is very easy at 3/4th throttle with very little elevator required.
The plane can climb vertically for as long as you want. Can do as big loops as you want.
Rudder authority is also good and Stall turns are easy to perform.
Slow rolls will require a little practice, however only from the pilot's side (Need to figure out the exact amount of rudder required). I am yet to try knife edge on this plane.
Glide is decent. It's not as much as the AviSpad, Bixler, Easy Star II etc. But it is equivalent to the Seagull 40 Low Wing Trainer (which I'm used to flying). Hence I did not face any problem there.
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
«
Reply #46 on:
July 31, 2014, 11:38:54 PM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Finally sat down and drew out the plan.
Here it is:
Mini Avispad (90%) Build Log
Mini Avispad (90%) Build Log
Mini Avispad (90%) Build Log
How do I remove the attachments??
Re: Mini Avispad (90%) Build Log
AviSport 1.jpg
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«
Last Edit: August 01, 2014, 08:45:21 AM by maahinberi
»
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
«
Reply #47 on:
August 01, 2014, 04:54:30 AM »
sanjayrai55
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Re:
Great Maahin. I highly reccomend this model
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Reply #48 on:
August 01, 2014, 08:23:24 AM »
ashok baijal
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Re: Mini Avispad (90%) Build Log
Plan 2: Is the fuselage width 50mm or 5mm as shown?
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Reply #49 on:
August 01, 2014, 08:25:24 AM »
maahinberi
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Re:
50mm. 5cm Sorry, I'll fix that in a while.
«
Last Edit: August 01, 2014, 08:46:04 AM by maahinberi
»
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
«
Reply #50 on:
August 01, 2014, 08:46:16 AM »
maahinberi
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Re: Mini Avispad (90%) Build Log
Updated Plans:
Mini Avispad (90%) Build Log
Mini Avispad (90%) Build Log
Mini Avispad (90%) Build Log
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Maahin Beri - Introduction and Hangar
Seagull Arising Star, Seagull Low Wing 40,
AviSport (SPAD)
, Phoenix Scanner, VortexRC Speedster, Martian 220 Racing Quadcopter.
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