Can any of you guys help me,

Im looking for a motor for a microjet, around 100-150grams, main thing im 
looking for is speed, high rpm on a apc 4.2x4.2 50,000rpm would be nice, 
1500w 4s Lipo 100a

a lehner 1530-6-hi amp is about the most savage motor that I can find, but 
it's around £120, can anyone tell me if there are any other makes that would 
be a good substitute?

Cheers

Stew

Humpty Dumpty wrote:
> Can any of you guys help me,
> 
> Im looking for a motor for a microjet, around 100-150grams, main thing im 
> looking for is speed, high rpm on a apc 4.2x4.2 50,000rpm would be nice, 
> 1500w 4s Lipo 100a
> 
> a lehner 1530-6-hi amp is about the most savage motor that I can find, but 
> it's around �120, can anyone tell me if there are any other makes that would 
> be a good substitute?
> 
> Cheers
> 
> Stew 
> 
> 
Mega AC 16/15/3

  3s LIPO and the props you specified, but 50K RPM is unrealistic. 
30-35k maybe. It is virtually uncontrollable flat out anyway on that. 
Goes from incoming missile to dot in less than a second. Or steaming 
pile of crap, if your reflexes don't keep up.


You MIGHT get away with a 16/15/2 and a pretty huge pack - that might 
pull 40A plus on a smaller prop. And might get to 50K RPM.

But 1500W in a microjet? you are mad. It a very expensive accident 
waiting to happen. If you want the lightest 1500W you an, you want a 
tuned pipe 40 racing engine on maybe an 8x8 prop. THAT's lighter than an 
electric, but the torque will spin the thing out of the sky.


4S 100A pack will weigh more than your quoted plane weight by itself.
And cost more than any motor you will ever put in it.

Theres plenty of big hackers that will do the power you want.

Bu that plane will never fly.

"The Natural Philosopher" <a@b.c> wrote in message 
news:1195146133.63081.0@demeter.uk.clara.net...
> Humpty Dumpty wrote:
>> Can any of you guys help me,
>>
>> Im looking for a motor for a microjet, around 100-150grams, main thing im 
>> looking for is speed, high rpm on a apc 4.2x4.2 50,000rpm would be nice, 
>> 1500w 4s Lipo 100a
>>
>> a lehner 1530-6-hi amp is about the most savage motor that I can find, 
>> but it's around ?120, can anyone tell me if there are any other makes 
>> that would be a good substitute?
>>
>> Cheers
>>
>> Stew
> Mega AC 16/15/3
>
>  3s LIPO and the props you specified, but 50K RPM is unrealistic. 30-35k 
> maybe. It is virtually uncontrollable flat out anyway on that. Goes from 
> incoming missile to dot in less than a second. Or steaming pile of crap, 
> if your reflexes don't keep up.
>
>  You MIGHT get away with a 16/15/2 and a pretty huge pack - that might 
> pull 40A plus on a smaller prop. And might get to 50K RPM.
>
> But 1500W in a microjet? you are mad. It a very expensive accident waiting 
> to happen. If you want the lightest 1500W you an, you want a tuned pipe 40 
> racing engine on maybe an 8x8 prop. THAT's lighter than an electric, but 
> the torque will spin the thing out of the sky.
>
>
> 4S 100A pack will weigh more than your quoted plane weight by itself.
> And cost more than any motor you will ever put in it.
>


> Theres plenty of big hackers that will do the power you want.
>
> Bu that plane will never fly.

I know the plane will fly, I know of someone with this very setup, he 
clocked it at around 49,000 rpm, and more than 99 amps on a 4s evo 30c 
pack, but as you say the Mega AC 16/15/3-2 looks like a good medium-high 
power set up, and a bit less extreme ;o) thats more what im looking for, 
i'll leave the savage lehner motor for another time.

I have a Hacker B40 7L that would get you to circa 42000 on a 4.2x4.2 of 3s 
lipos that would come at the right price if you wanted it. £50.00 posted.

Stuart


"Humpty Dumpty"  wrote in message 
news:AZidnfvDL4QyGaHanZ2dnUVZ8tmhnZ2d@fireflyuk.net...
>
> "The Natural Philosopher" <a@b.c> wrote in message 
> news:1195146133.63081.0@demeter.uk.clara.net...
>> Humpty Dumpty wrote:
>>> Can any of you guys help me,
>>>
>>> Im looking for a motor for a microjet, around 100-150grams, main thing 
>>> im looking for is speed, high rpm on a apc 4.2x4.2 50,000rpm would be 
>>> nice, 1500w 4s Lipo 100a
>>>
>>> a lehner 1530-6-hi amp is about the most savage motor that I can find, 
>>> but it's around ?120, can anyone tell me if there are any other makes 
>>> that would be a good substitute?
>>>
>>> Cheers
>>>
>>> Stew
>> Mega AC 16/15/3
>>
>>  3s LIPO and the props you specified, but 50K RPM is unrealistic. 30-35k 
>> maybe. It is virtually uncontrollable flat out anyway on that. Goes from 
>> incoming missile to dot in less than a second. Or steaming pile of crap, 
>> if your reflexes don't keep up.
>>
>>  You MIGHT get away with a 16/15/2 and a pretty huge pack - that might 
>> pull 40A plus on a smaller prop. And might get to 50K RPM.
>>
>> But 1500W in a microjet? you are mad. It a very expensive accident 
>> waiting to happen. If you want the lightest 1500W you an, you want a 
>> tuned pipe 40 racing engine on maybe an 8x8 prop. THAT's lighter than an 
>> electric, but the torque will spin the thing out of the sky.
>>
>>
>> 4S 100A pack will weigh more than your quoted plane weight by itself.
>> And cost more than any motor you will ever put in it.
>>
>
>
>> Theres plenty of big hackers that will do the power you want.
>>
>> Bu that plane will never fly.
>
> I know the plane will fly, I know of someone with this very setup, he 
> clocked it at around 49,000 rpm, and more than 99 amps on a 4s evo 30c 
> pack, but as you say the Mega AC 16/15/3-2 looks like a good medium-high 
> power set up, and a bit less extreme ;o) thats more what im looking for, 
> i'll leave the savage lehner motor for another time.
>