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HelicopterScale Model RC Helicopters › the importance of testing
05-06-2005 11:59 AM  12 years agoPost 1
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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for those of us who spend many hours building a scale ship, we know that one very important part of the process is test flying the mechanics we intend to mount in our prized fuselage. in many cases this is pretty easy to do. it is just a matter of putting the boom and skids on and flying it in pod n boom to fine tune and work out all the bugs. what i do is fly the heli in pod n boom while the fuselage is being built just so i can put time on the machine to prove its reliability and dependability. this assures me that in the fuselage, i know all is well...........for the most part. there are some machines however that arent so easy to do the pod n boom testing. what do you do then? i once had a heim bell 222 to build for someone many years ago and the mechs are only able to be mounted in the fuse. since for me the biggest issue with test flights is getting a reliable running engine, what i did was run the engine on the test stand for a couple tanks til i was satisfied it was holding a good idle and had good throttle response. several props of te recomended size range for the engine was used. my experience has tought me that if anything is going to loosen on a new machine, it will happen during the first tankful, so i usually hover at a low altitude for the first half tank, shut down, check all screws for tightness and crank her up again. as i gain confidence, i proceed with getting the flight controls, and other settings adjusted. after that, its off into the wild blue.
before i test fly my scale mechanics, i usually get them set up for the fuselage meaning i size them up in the fuselage to get all woodwork installed and other mounting stuff. this will keep me from having to stop the flying and taking things apart just to fit it to the fuse. after the mechs are sized up, it will be flying while i work on the fuselage issues that do not require the mechs' presence. by the time the fuselage is ready for the first flight with the mechs, the mechs will be ready for the job.
i have had bad things happen to mechanics when they were being test flown outside the fuselage and while it can be a bummer, it's not as bad as it would be if it was in the fuse. when i do a "100hr" inspection on my scalers, i do it in the pod n boom configuration. engine tunings are so much more hassle free this way. i also feel better setting up the mechs for autos while it is in pod n boom than when it is in the fuse.
well i have rambled on enough for now, hope this is of some good use

drive a rotary, fly a rotorcraft

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05-06-2005 12:31 PM  12 years agoPost 2
Edders

rrApprentice

Suffolk,UK

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great post many thanks for the tip


Edders

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05-06-2005 12:39 PM  12 years agoPost 3
RUFFYB

rrNovice

HERTFORDSHIRE UK.

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Sound advice.
That was my plan with my petrol dauphin.
It's alot of effort and money to blow in one go!

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05-06-2005 02:57 PM  12 years agoPost 4
BladeRunner

rrElite Veteran

Ontario Canada. Member of "some sort" s

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The Doctor is in da' house! Thanks for an informative post..Well done... These are the type of posts that we can all learn from.....

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05-07-2005 04:10 AM  12 years agoPost 5
CobraJock24

rrApprentice

Northern California

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Emile,
Very good check list and test profile! Your "Real Deal" piloting skills are showing through!!! Someday that CFI should be in your wallet!

Cheers,
Grover

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