thank you Andrew, since you always share your experiences... thank you very much again...

We will study thoroughly this information, they will be thought for the next decisions.

cheers.

I had the engine front mounted with a rear support, It was hard mounted to the firewall to allow it to be very strong.
It will be a very hard decision for me as well. Right now I'm leaning with the Q60 as its a bit lighter then the Q80 and both put out about the same power.
BTW, the Q60 hit 3000 watts in the air at 78 amps.


Andrew

Andrew

Have you measured temps of the Q60 / 80 post flight? I'd expect the Q80 to be easier to cool.

Earl,

The Q60 did come done about 15 degrees hotter than the Q80, the Q60 was about 145 degrees after a flight in 100 degree temps.

Andrew

Hey Andrew,

Is 3000 Watts actually needed now in f3a? Can you me tell what motors are currently putting out this kind of power? (besides the Q80, and the Q60 of course ...)

Brenner ...

Is anyone finding the propshaft on the Q80 too short?

When I have the spinner backplate, APC prop and the supplied prop washer fitted I can only get the prop nut on and there is no chance of getting the locknut/ spinner attactchment fitted.
It looks like I will need to use a thinner prop washer but even this will only let the locknut on a couple of threads.

Has anyone else found this?

Regards

Arthur

ArthurHave the same problem and can only guess it is to keep the weight down.Have changed the supplied alloy prop nut for a steel one and find this adequate, as it's a very smooth running motor.Cheers,Mick

Hi Andrew
Do you have some pictures of how you have mounted the Q80?
Cause I can't figure out how it is supported in the rear

regards
Dan

Dan,

I dont have any pictures handy of how it was mounted but I decided to just run a 1/8th stainless pin through the back of the motor supported by 2 bearings in the back of the motor, and one that passes through a mount that I have made up for the motor. I'll try and draw it out and hopefully youll get an understanding of what I did.

Andrew

Use an carbon prop as the PT ones

Hi Guys,

Received my Q80-11S with the post today, and took some measurements that could hopefully satisfy the crowd following this thread....

Weight: approx. 655 grams with the prop adaptor
Shaft length with stock prop adaptor installed: 28mm
Outside diameter of the bell: 88.5 mm
Rear support bearing inner diameter: 8mm
Connector: 4mm bullet, gold plated

Observations:

Motor seems very well built, but somewhat heavier than advertised. The first adverts said 590 grams, the current weight listed on Hackers web-site is 630 grams, the weight of my motor is approx. 655 grams...
The dual lock-nut assembly is no longer made of steel as it was on previous Hacker motors, rather on the Q80 they are made of aluminium and painted or maybe anodised black. Probably to save weight.
The rear bearing is located in the bell, and as far as I can see only has the purpose of installing a rear support, it is not in contact with the steel shaft. The inner ring hole diameter of the rear bearing is 8mm, so it should be relatively easy to create a light rear support using 8mm carbon tube glued into a cross brace made of 3mm plywood or something similar.

Took some photos as well.

The last photos...

Thank you, Morten....good job.

Here is my .dat file for my castle Ice 80HV system and both my Q60 and Q80 motors. Note you will have to change the txt extension back to a .dat file after downloading it.

Andrew

Hellow Andrew, thank you for the info!

I fitted the Q80 in my Visa, fixed on the front without rear mounting. Previously, waiting for the Hacker, I used a Duslaky 6360T12 fitted on the same way.
The total number of fligths of the airplane is 160 flights without problems at all, all of them flying the P11 schedule. I think this way of mounting is lighter than the one with the rear mount. Can send you photos if you like.
Regarding your information, I´m using for the Q80 an APC 21x14 prop. Current is the same as you reported (82 Amps).
What I would like to know is if you tested another props, also if you have a recommendation about.

Gustavo

Does anybody have the real weight of the Q60, not the manufacurer info, as Mola reported earlier in this thread his Q80 was hevier than manufacturer info. THX.

Does anyone know the firewall to thrust washer dimension for the Q60?

Thanks!

Chris

Here's a Q60. Weighs 596 grams or 21 ounces

Looks like 71.2 MM

Hi

I am awaiting my Q80 motor but in the mean while wanted to order a CF spinner from Phillipe Marquet. Can you please indicate if there is any difference between the drive washer and collet used in the Q80 when compared to drive washer used the Hacker C50 F3A comp motors? The reason for asking is because the Marquet spinner comes with an option where the drive washer is moulded as part of the spinner back plate and one saves a great deal in weight when not using the standard Hacker drive washer.

Regards
Burt

Hello Burt,

it´s the same drive washer.
You can use at the Q 80 the same Marquet spinner like at the C 50 Acro competition and you save the original drive washer.

At the oictures my Delro-Jupiter with Marquet spinner and C50 Acro competition. Now I fly at the same modeltype the Q 80.

regards

Bruno

Hi Bruno.

Thank you very much, what is your opinion having flown both motors, which of the two motors do you prefer.

Regards
Burt

can you do this for the Q60 as well???
any sugestion for a prop.size on this ...thinking maybe 21x14 apc or a bit smaller?

A friend of mine AC Glenn gave me a new style prop to test. The prop is a Hatta Special by Extreme Compositenamed after the member of the Japanese F3A team. Hatta runs this on his Q80.
I was using a 20.5x14 Rasa on my motor before along with having tried and disliked a PT 21x14.
This prop is showing great results so far. It uses on avarage about 7% less mils per routine. It has superior braking equal pull and a tad slower cruise speed. It's all wood. Size is 19x12.5.
I'm extremely happy with what I've seen from it so far.
They are now availble in the states too. Mike Mueller

Hello all

I wanted to know if the CC Ice 80HV would be enough for the Q60

Happy Landings