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General Topics => RC Events => Topic started by: flytrack on March 28, 2013, 09:56:23 AM



Title: Electric Payload Competition
Post by: flytrack on March 28, 2013, 09:56:23 AM
Payload Competition Electric-Draft
MODEL AIRCRAFT PAYLOAD COMPETITION(Electric)
1.The aircraft must be self designed ,no kit/ARF/RTF permitted
2.The aircraft may be constructed of any material.
3.The aircraft will use an Electric motor of any size..
4.No autopilot or stabilisation system permitted.
5.Empty weight of aircraft will include,airframe,battery,ESC,motor,RC receiver,Rc receiver battery,Servos,propeller,spinner,landing gear wheels.
6.Payload will include the weight carried in a secure compartment to prevent it from falling in mid air,falling of weight will disqualify.No lead is permitted as payload.
7.The aircraft will take off on its own power.
8.The aircraft must land safely,crash landing will disqualify.
9.The model will make a successful flight and circuit for 3minutes including takeoff and landing,no aerobatics are permitted.
10.Individual or a team comprising of two flyers can participate.
11.The individual/team carrying maximum payload will be declared winner.
Suggestions welcome


Title: Re: Electric Payload Competition
Post by: Ramjan on June 11, 2013, 04:37:41 PM
hey flytrack
may be I m late at forum  >:(
but want to know about this challenge
date and venue  ???

Thank you


Title: Re: Electric Payload Competition
Post by: flytrack on June 11, 2013, 07:45:05 PM
welcome
a lot of info posted under Events (Pinjore 13 update )by me ,please have a look,this is at Pinjore amongst many other categories.on the 18th. to 20th. oct 13 ,also under RC general topics category -AMA certificates


Title: Re: Electric Payload Competition
Post by: K K Iyer on June 11, 2013, 08:07:17 PM
Sir,
You may like to consider (weight with payload)/(weight without payload), instead of just payload to determine the winner.
This will allow planes of different sizes to compete on equal terms.
Otherwise the biggest motor/plane will win.
Regards.
P.S. I remember searching for your father's house in Begumpet and meeting your brother Ajit(?) in 1974 or so. So must have first come to your house in Delhi over 40 years ago. How time flies!


Title: Re: Electric Payload Competition
Post by: flytrack on June 11, 2013, 10:36:02 PM
KK nice to hear from u what r u upto ?relaxing in Indore or still working?active on aeromodeling?
do try n come to Pinjore for the event.Agree with yr suggestion ,will incorporate.
Regards.
 


Title: Re: Electric Payload Competition
Post by: prateek13 on August 26, 2013, 10:53:31 PM
What is going to be the payload?
I have an airframe which is hand launched and belly landing(e.i. without landing gear) can I use it?


Title: Re: Electric Payload Competition
Post by: flytrack on August 27, 2013, 08:19:31 AM
Prateek,
The requirement is enumerated above-plane has to takeoff from ground no hand launch payload ratio will be calculated as follows:-
Weight of aircraft in flying status with batteries/motor etc=x
maximum weight carried in any flight =y
Payload ratio is =Y/X,Whoever has the max payload ratio wins,three attempts will be permitted and highest pay load carried will be taken into account in any of the three flights.


Title: Re: Electric Payload Competition
Post by: K K Iyer on August 27, 2013, 11:09:34 PM
Has anyone started experimenting?
What can one expect - 2:1?, 3:1?
Minimum flight 3 minutes?
Would like to know before i start breaking my head on this problem  :banghead:


Title: Re: Electric Payload Competition
Post by: K K Iyer on August 29, 2013, 11:10:50 PM
@flytrack
No response so far.
What has been achieved in India so far.
2:1, 3:1?
Grateful to know what to aim for.


Title: Re: Electric Payload Competition
Post by: K K Iyer on August 29, 2013, 11:14:49 PM
The thumb rule seems to be 20%of empty wt.
Will try 60- 100% of empty wt on sunday (if no rain) and report results.


Title: Re: Electric Payload Competition
Post by: flytrack on August 30, 2013, 07:58:09 AM
The best payload wins -try your expertise n luck.


Title: Re: Electric Payload Competition
Post by: prateek13 on August 30, 2013, 08:00:20 AM
How much is 0.46 ax engine's power in watts? Around 460 watts?


Title: Re: Electric Payload Competition
Post by: flytrack on August 30, 2013, 08:22:21 AM
You can check the specs of the engine from the engine data sheet and convert to Watts.


Title: Re: Electric Payload Competition
Post by: K K Iyer on September 07, 2013, 10:00:11 PM
@prateek13
Just think.
How can the .46 ax be 460 watts?
It is 1.6 hp.
How many watts is that?


Title: Re: Electric Payload Competition
Post by: K K Iyer on September 07, 2013, 11:12:15 PM
Anyone carried more than 1:1 yet?


Title: Re: Electric Payload Competition
Post by: K K Iyer on September 07, 2013, 11:32:56 PM
@flytrack
Thanks for incorporating my suggestion of payload ratio instead of just payload.
Next suggestion.
What about postal qualifying rounds?
1st round videos of carrying 1:1
2nd round videos of carrying 2:1
These can qualify for Pinjore.
Feasible or bar set too high?
Regards.


Title: Re: Electric Payload Competition
Post by: prateek13 on September 08, 2013, 12:20:37 AM
At 746 watts per HP it will be around 1194 watts in total.


Title: Re: Electric Payload Competition
Post by: K K Iyer on September 08, 2013, 12:29:14 AM
I knew the answer.
Just wanted to give you a hint so you could answer your own question.
But no one is answering my question.
Anyone carrying 1:1?
Anyone carrying 2:1?
More?


Title: Re: Electric Payload Competition
Post by: vineet on September 08, 2013, 10:44:35 AM
hope some similar events in delhi with in reachable boundaries