Title: Modified A-V-Spad Post by: girishsarwal on July 22, 2013, 10:49:33 PM Did an avispad build recently, slightly modified from original plans, the wing areas is larger. No build pics :(.
The maiden was a disaster. The second trial much better. Here it is: http://www.youtube.com/watch?v=ySuB5OfD9qs Some kinks ironed out, some are left. Changed the landing gear. The earlier one was from the cub I lost recently. The gear would squash on landing, and was giving away on high speeds, one can hear the prop hitting the ground, right after sanjay sir's nimboo mirchi chant ;) The CG was out. Very nose heavy. Now fixed by swapping the position of the battery and the ESC + Rx. Feels underpowered on takeoff, motor to be replaced. Next trial this Wed. Will post the results. Thanks Sanjay sir for the guidance throughout, and Sandeep Pande for shooting the difficult video, given the my tipsy takeoff. Title: Re: Modified A-V-Spad Post by: rastsaurabh on July 22, 2013, 10:56:06 PM I am getting jealous of you guys ........getting all the fun.....I am to go on business trip
Title: Re: Modified A-V-Spad Post by: shauviks on July 23, 2013, 01:38:03 AM @Girish Bhaiya that as one heck of a takeoff eve dangerous than mmy TT Ready's first takeoff :giggle: :giggle: :giggle: :giggle:
:hatsoff: :hatsoff: To the pilot for succesfullt cotrolling the takeoff {:)} {:)} {:)} Way too uderpowered i guess and cg not balanced ..... ??? ??? Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 23, 2013, 08:06:53 AM Girish, as I was there, I can unequivocally say that was some flying, looking at the way the model was behaving {:)} {:)}
I think we have all the corrective actions on file now, just need to implement Title: Re: Modified A-V-Spad Post by: maahinberi on July 23, 2013, 09:05:31 AM Wonderful flying! Will be there on Wednesday
Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 23, 2013, 09:31:01 AM Get your 049 and maiden it!
Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 23, 2013, 09:36:10 AM The CG was out. Very nose heavy. Now fixed by swapping the position of the battery and the ESC + Rx. At 1:09, you can hear Sandeep saying some balance problem....CG is out :D Title: Re: Modified A-V-Spad Post by: girishsarwal on July 23, 2013, 05:44:57 PM Thank you sanjay sir, shauvik and maheen. If I had to own up, I was sweating that moment ;) It's a spad but any loss would have been a loss.
Hope to have a better flight tomm. Thanks for the motor sanjay sir. Maheen, I am looking forward to see you flying your cox. Did you start it with the new fuel? Title: Re: Modified A-V-Spad Post by: maahinberi on July 23, 2013, 08:03:01 PM Sir, Cox is finally running ;D
Ready to be maidened tomorrow. Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 24, 2013, 09:58:49 AM Some great flying today Girish! Successful maiden, successful second flight {:)} {:)}
Now just upgrade that motor, and rock the skies :D Title: Re: Modified A-V-Spad Post by: girishsarwal on July 24, 2013, 11:50:20 AM Sure sir, I am looking at the motor tonight.
Also, I now have the two fiery blaze stickers ;)...lol Title: Re: Modified A-V-Spad Post by: maahinberi on July 24, 2013, 11:53:20 AM You'll have to make your plane fiery before installing them though.
Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 24, 2013, 12:07:06 PM Maahin: do you have the video of the flying of this?
Title: Re: Modified A-V-Spad Post by: maahinberi on July 24, 2013, 12:18:54 PM Videos are currently uploading sir.
Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 24, 2013, 12:19:36 PM Great! Thank you Maahin :D
Title: Re: Modified A-V-Spad Post by: maahinberi on July 24, 2013, 01:45:32 PM Maiden Flight:
http://www.youtube.com/watch?v=nTl-CSAPXlo Title: Re: Modified A-V-Spad Post by: maahinberi on July 24, 2013, 01:46:37 PM Second Flight:
http://www.youtube.com/watch?v=F5dppHEpWUw Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 24, 2013, 02:24:38 PM Great! Cool morning's work :D
Observe: video 2 ends precisely where video 1 starts - next to that big stone on the runway ;D Title: Re: Modified A-V-Spad Post by: girishsarwal on July 24, 2013, 04:27:51 PM Thanks Maheen,
Sanjay sir, we should put a green klaxon on top of that stone. It will serve as our our go-no-go light Title: Re: Modified A-V-Spad Post by: sanjayrai55 on July 24, 2013, 07:39:52 PM ;D LoL! It will be easier to move it!
Title: Re: Modified A-V-Spad Post by: girishsarwal on October 04, 2013, 11:32:35 AM Reposting this post a little below ...posted out of order.
Title: Re: Modified A-V-Spad Post by: girishsarwal on October 04, 2013, 11:47:19 AM So, the first incarnation of the A-V spad came down after about 12 successful flights. Was landing and went oblivious on the sticks...let the elevator spring back to neutral, about 8 feet above the ground, nosed dived, fuse broken, motor shaft broken
Redid the fuse...pics attached Title: Re: Modified A-V-Spad Post by: girishsarwal on October 04, 2013, 11:48:12 AM Another photo of the fuse of A-V Redux
Redid the motor shaft from 4mm steel rod. Not hardened but worked great. Snug fit in the bearing, with a little lubrication moved very well. However, motor was not being cooled properly and the bearings little noisy; Ignorance was bliss and the A-V took about 7 more flights Title: Re: Modified A-V-Spad Post by: girishsarwal on October 04, 2013, 11:54:52 AM The original 3530 motor gave way, probable bearing problem; overheated; dead with coils burnt. The A-V came down with the motor dangling in front but landed safely (on the landing strip ;)). It was a sight.
Motor now replaced with a 3536 size from RCB. Thanks Sanjay sir for the advise on the motor spec, and the idea for making a shaft out of die guide rods... Incarnation 3 Maiden tommorow... Title: Re: Modified A-V-Spad Post by: sanjayrai55 on October 05, 2013, 11:19:39 AM Talking of die guide rods, can harden them. Use a butane flame, red heat, and throw into oil. Should get about 45 Rc on it. If done properly, to 850 deg C, and proper cooling done, can get 55 Rc!
Title: Re: Modified A-V-Spad Post by: girishsarwal on October 16, 2013, 06:27:56 PM AV Spad flying on a 3536 motor. Arvind tossing it around ;)
http://www.youtube.com/watch?v=KDkJ-XPuE_M Title: Re: Modified A-V-Spad Post by: sanjayrai55 on October 16, 2013, 06:41:52 PM Great fun. BTW you mentioned ESC about 10 times in the video :rofl:
Title: Re: Modified A-V-Spad Post by: girishsarwal on October 16, 2013, 08:28:28 PM Hahaha...you 'felt' my cloaked agony
Title: Re: Modified A-V-Spad Post by: girishsarwal on December 05, 2013, 11:47:33 AM The A-V Spad has been serving good. Over 70 flights successfully done.
Last flight and due to distractions, the wing bolts weren't tightened. the wing came off right after take off, and it hit the ground like a missile. Firewall was safe so was motor...Corro gave way to the shock... Fuse repaired since then, much stronger and a DVR mounted :D So here's technically my first FPV video...Camera feed will be linked to the gt-jtx very soon. http://www.youtube.com/watch?v=wcdOMVCXrJs Title: Re: Modified A-V-Spad Post by: sanjayrai55 on December 05, 2013, 12:07:28 PM "Fly way...in this perfect weather" :thumbsup: :thumbsup:
The ground looks quite nice from above.....except for the trucks ;) ;) Noticed another field too - behind Title: Re: Modified A-V-Spad Post by: maahinberi on December 05, 2013, 12:40:14 PM Is some mela coming up? Or is that dome like thing a permanent construction ???
Title: Re: Modified A-V-Spad Post by: girishsarwal on December 05, 2013, 12:44:00 PM temporary. Will be off by the time you're in ggn ;)
Title: Re: Modified A-V-Spad Post by: maahinberi on December 05, 2013, 12:47:32 PM Ah, cool. Can't wait to maiden (finally!!) the stick
Title: Re: Modified A-V-Spad Post by: girishsarwal on December 05, 2013, 08:22:15 PM Sanjay sir,
That's where the Jap guy flies his glider. I've asked him to join us this weekend... Title: Re: Modified A-V-Spad Post by: sanjayrai55 on December 05, 2013, 08:26:06 PM :thumbsup: :thumbsup:
Title: Re: Modified A-V-Spad Post by: iwincar on December 06, 2013, 05:00:09 PM Girish spec please, motor bat,prop,
Title: Re: Modified A-V-Spad Post by: girishsarwal on December 07, 2013, 05:45:44 PM Iwincar
3536 motor1500 kv from rcb 10 x 7 ep prop 2200.mah 50a esc 48 inch wingspan auw ~1.3 kg Basis the Avisapd from Bex... Title: Re: Modified A-V-Spad Post by: rcrcnitesh on December 08, 2013, 07:30:56 PM very overpowered I think.
Title: Re: Modified A-V-Spad Post by: sanjayrai55 on December 08, 2013, 08:19:14 PM Young man, your thoughts are irrelevant and irrational. This is no more a trainer, but a sport model
Title: Re: Modified A-V-Spad Post by: girishsarwal on January 09, 2014, 12:58:08 PM The A-V has been serving well and flew it yesterday afternoon...too many kites and partly irresponsible on my end, dangerous for the birds, but then, I'm a non-vegetarian...
http://www.youtube.com/watch?v=Zbod6mQk4D4#ws (http://www.youtube.com/watch?v=Zbod6mQk4D4#ws) Title: Re: Modified A-V-Spad Post by: girishsarwal on January 09, 2014, 01:05:36 PM fuse broke on second landing...so now there's a box on top of a box on top of a boxed fuse...
Flew this morning again... Title: Re: Modified A-V-Spad Post by: sanjayrai55 on January 09, 2014, 02:50:33 PM You kept attacking "The Tree" :o :o ;D
Title: Re: Modified A-V-Spad Post by: girishsarwal on January 09, 2014, 05:33:22 PM parts of me are herbivorous as well ;)...One fine day sire..."The Tree" will be "The Tree That Was"
Title: Re: Modified A-V-Spad Post by: tushar112 on January 10, 2014, 12:05:20 AM "The Tree" will be "The Tree That Was" :giggle: :giggle:
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