Minimum acceptable climb rate?

[bholleran]

On considering a new motor what would you consider the minimum acceptable climb rate to be?

Can you also please list what all up weight and motor you are flying now and what you current climb rate is.

It would be very much appreciated.

[stuartasutherland]

Hi, I fly a Volution Macro (old 180cc). I'm heavy at 100kg plus kit. On a Synthesis 34.

I get 350ft climb usually.

Stuart

[alan_k]

Hi, I'm flying a Fresh Breeze Solo 210 with about 15hp.

My all up weight is about 115Kg, wing is a ReAction 29 metre squared.

With the original carbon prop my climb rate was 250 ft/min, with a replacement wooden prop which is a little fine for this motor I get 200 ft/min.

I would consider this to be about the minimum acceptable, so you have got a little in reserve if you encounter any sinking air.

Good luck with your choice of motor, have you considered the Bulldog?

Cheers,

Alan

[enzo200500]

Barry, have you flown the new V2 parajet?

If you are down hambrook, take mine for a spin!

Better than those popping and banging diesels you flew on sat!!

[morgy]

Better than those popping and banging diesels you flew on sat!!

LOL

Most of the banging (back firing) was due to both me and luke going from high RPM's and climbing to nothing and killing the motor then gliding in for the Skittles..

As for ave climb rate does everyone use the timed average on there Vario or just the instant. You need to have at least 30s to 1m setting to give you a good idea....

A V5 is never going to give you the same climb rate you can get out of the simo or other powerful 2stroke's.. I spoke to seymore today and he gets 2.2-2.5fpm the same as me and luke. If you do want a fast climb rate over 3.5-4.0fpm + then the V5 is not the motor for you with out a doubt.

I will ring you tomorrow to let you know if were going to hambrook as it is now looking windy...

[seymore]

A 250 ft/min climb is plenty is with a 4 stroke . Yes the big two stokes can hit 450 but the draw backs are massive. High fuel consumption, noise, noise, noise, uncomfortable vibration and did I mention they are LOUD. I really don,t like to have them fly from my place as the neighbours complain so much.

As for worrying about sinking air, that is just a matter of anticipation . The only time it is really a problem is lee side wave and that can and should always be easily avoided.

Enjoy the new setup Barry and I will be flying with you soon.

[lukebanks1]

I was getting 200 - 250fpm on trims out and full throttle that day and climbing 100fpm on full bar.

You looked fine on the V5 on take off.

I have never had a motor with lots of thrust (Miniplane and now V5) but when I have flown powerful machines all the negatives Seymore has pointed out have negated what benefit there may have been in having oodles of power in reserve.

The V5 is perfect for the sort of flying I think you want to do.

[Halo]

On 21/05/2012 at 13:33, alan_k said:

Hi, I'm flying a Fresh Breeze Solo 210 with about 15hp.

My all up weight is about 115Kg, wing is a ReAction 29 metre squared.

With the original carbon prop my climb rate was 250 ft/min, with a replacement wooden prop which is a little fine for this motor I get 200 ft/min.

I would consider this to be about the minimum acceptable, so you have got a little in reserve if you encounter any sinking air.

Good luck with your choice of motor, have you considered the Bulldog?

Cheers,

Alan

What's your fuel consumption per hour with carbon prop? I've just bought a used one unseen. There's no info on the web. 

What are the weaknesses of this engine? Anything I should be aware of due to maintenance?

[alan_k]

11 hours ago, Halo said:

What's your fuel consumption per hour with carbon prop? I've just bought a used one unseen. There's no info on the web. 

What are the weaknesses of this engine? Anything I should be aware of due to maintenance?

From memory it was 4.5 to 5 litres. Depends on your weight and the wing loading.

A couple of points with the Fresh Breeze model with Solo 210, the motor mounts were quite soft, there was a modification to add a bracket to limit the motor twist on the frame to prevent cage strike.

2nd point, secure the wiring, particularly the 3 way push on connector, if left loose vibration will cause wire fracture eventually.

Safe flying.