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Henseleit TDR MP-XLE MP-E
› Need some advice about electronic parts for TDR
04-06-2011 05:25 PM  6 years agoPost 1
b999

rrNovice

Hong Kong

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Hi All,
I'm buliding my TDR now,
these TDR is from my friend who has it as a back up heli,
it's a 2009 ver but have have 2010 upgrade(no install yet, that's what I need to do now )

I have 8717HV+9088 or 8717+251
Pyro 700-52 & 700-45
Jive 120HV & Jive 80HV
I don't know should I run HV, because I need to put 2S for RX,
I can just spot flight & some roll. Is that abit stupid to put extra weight to my TDR? also, 700-52 or 700-45 is better?
I do have the 710 blade make by Jan, but I have alot Edge 690
I'm worry to damage Jan's 710 & need to wait for order.
also, is 80HV already enough?
thanks for advice

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04-07-2011 05:22 AM  6 years agoPost 2
Stolla

rrKey Veteran

Port elizabeth South Africa

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700-52 is ideal for max power but you can use the 45 to great effect as the TDR fly very well at lower headspeed,Jive 80hv on 45 and 120.
on 52. If you dont fly serious 3d or dont want to fly at 200 km/h best is 45 as you'll get better flight times as well.
I dont use external bat on jive, 7 machines flying like that in 3 years not a problem

Common sense may not be common after all

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04-07-2011 07:35 AM  6 years agoPost 3
b999

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Hong Kong

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Thank you so much~~
will put 80HV +45 as you advice~~

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04-07-2011 12:08 PM  6 years agoPost 4
Stolla

rrKey Veteran

Port elizabeth South Africa

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Good, for what you want,i.e long flight times,low amp draw stay with the stock pinion for 700-52 and set throttle curves accordingly. Wont help much if you gear 45 (larger pinion) to get higher headspeed.
Aim for approx 1600 -1700 headspeed

Common sense may not be common after all

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04-07-2011 12:39 PM  6 years agoPost 5
JohnDa

rrVeteran

England, South West

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Stolla, that's a bit confusing,

He say's he's going to use the 45 motor, but you advise to use the stock pinion for the 700-52 motor, this will not get to 1600 -1700rpm,
to get those headspeeds with the 700-45 motor I thought you would need someting like a 15t pinion or a 14t?

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04-07-2011 01:45 PM  6 years agoPost 6
epc2

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Miami , Fl./S.Domingo.

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Why do you think he needs the 120 with the 700-52 , the 80HV with the heatsink should be more than enough , there're a lot of guys running the 80-700-52 w/o any issues.

epc2.

Team My Wallet.

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04-07-2011 02:13 PM  6 years agoPost 7
b999

rrNovice

Hong Kong

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as Stolla "you can use the 45 to great effect as the TDR fly very well at lower headspeed,Jive 80hv on 45 and 120.
on 52. If you dont fly serious 3d or dont want to fly at 200 km/h best is 45 as you'll get better flight times as well."

I miss understanding he advice me to use 700-45.
ok, now my elec list:
8717 x 3
251
Vbar 5.1
Kon 80HV
Pryo 700-52
12S 4000mAh 25C
I want longer sport flight time~~~
so, my target head speed 1600~1700, is it enought?
thanks for helping~~guys

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04-08-2011 08:27 PM  6 years agoPost 8
Stolla

rrKey Veteran

Port elizabeth South Africa

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For longer flight times use the 700-45, the 52 is a high power setup aiming for upwards of 1900 headspeed.
You can fly 3d with a tdr at 1400 if you want.
Reason i say 120 for 52 is yes you can use the 80 if you fly normal aerobatics but you risk if you fly hard 3d on high c rated lipos.
My estimation of approx 1600-1700 headspeed on same pinion is based on what i achieve on my 520 i.e 2100 so give and take he'll be close to target headspeed of 16-1700 with the 450 on same pinion

Common sense may not be common after all

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04-08-2011 09:31 PM  6 years agoPost 9
b999

rrNovice

Hong Kong

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Thanks Stolla~ very detail explaination!
almost finish re-built with 2010 upgrade parts.
you give me a big help

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04-08-2011 10:09 PM  6 years agoPost 10
JohnDa

rrVeteran

England, South West

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When I asked Jan about gearing for the 700-450 motor he suggested that I would need a 15t pinion even possibly a 16t to reach those head speeds

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04-09-2011 05:40 PM  6 years agoPost 11
Stolla

rrKey Veteran

Port elizabeth South Africa

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If you want to reach speeds in the 1850-1900 range yes but the whole idea of the 450 is to get more flight times etc similar to the efp machines, Gearing the 450 to get 520 headspeeds is not the purpose here. Off the top of my head the difference in headspeed between 450kv and 520kv on same pinion will be in the 250-300 range Believe me the 450 on stock pinion will be a sweet machine for everything from smooth aerobatics to 3d.

Common sense may not be common after all

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04-11-2011 07:59 AM  6 years agoPost 12
JohnDa

rrVeteran

England, South West

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If you want to reach speeds in the 1850-1900 range yes but the whole idea of the 450 is to get more flight times etc similar to the efp machines, Gearing the 450 to get 520 headspeeds is not the purpose here. Off the top of my head the difference in headspeed between 450kv and 520kv on same pinion will be in the 250-300 range Believe me the 450 on stock pinion will be a sweet machine for everything from smooth aerobatics to 3d.
Hmmmm now I'm concerned that I've installed the wrong pinion

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04-11-2011 08:59 AM  6 years agoPost 13
Stolla

rrKey Veteran

Port elizabeth South Africa

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Dont be concerned you can get around with a t bigger or smaller paticularly on the jive, also because of the 5 % disrepancy between motors sometimes you may want 2 pinions to play around with.
It's only when you look for max efficiency and/or power that it gets critical.

Common sense may not be common after all

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