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Search: Posts Made By: validator
Showing results 1 to 14 of 14
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Forum: Rotorheads
15th Mar 2013, 08:28
Replies: 3
Views: 1,028
Posted By validator

New PW210S Engine question

Hello boys and girls,

I have a question about the new PW210S engine. Does anyone know what the dry weight of the engine is? It is not written in the TCDS =(

In a report i recently completed I...
Forum: Rotorheads
20th Feb 2013, 06:10
Replies: 15
Views: 2,496
Posted By validator

so should i just accept the problem and don't...

so should i just accept the problem and don't talk about it in my designs? =)

there should be something that can be done! Increased inlet cooling, different inlet and exhaust locations on the...
Forum: Rotorheads
20th Feb 2013, 05:33
Replies: 15
Views: 2,496
Posted By validator

Reingestion!

Hello fellow rotorheads;

I have a question about engine placement on helicopters. Recent studies i have been doing resulted in my finding of the following problem:

At Ng above 85% when hovering...
Forum: Rotorheads
18th Feb 2013, 13:29
Replies: 20
Views: 10,636
Posted By validator

Thanks for all the answers guys, So can we...

Thanks for all the answers guys,

So can we say a radial inlet + 2 stage centrifugal compressor leads to a better particle seperation (with a particle seperator of course) and better stall/surge...
Forum: Rotorheads
12th Feb 2013, 09:06
Replies: 20
Views: 10,636
Posted By validator

Turboshaft Engine Air Intake

Hello guys,

I have a question that has been bugging me for some time now, but i couldnt find a satisfying answer.

What are the adventages and disadventages of using an axial or radial air...
Forum: Rotorheads
31st Jan 2013, 14:34
Replies: 6
Views: 1,805
Posted By validator

Temperature limits

Hello,

I wonder if you guys know the operating temperature limitations of the following helicopters (or at least know some website that i can find such information)

Bell UH-1H
Bell AB204
Bell...
Forum: Rotorheads
22nd Jan 2013, 08:23
Replies: 3
Views: 3,528
Posted By validator

yeah that's what i thought but just trying to...

yeah that's what i thought but just trying to validate =)

I just found it kinda unnecessary for someone to put an OEI service ceiling graph to an introductory brochure about a helicopter, started...
Forum: Rotorheads
22nd Jan 2013, 07:56
Replies: 3
Views: 3,528
Posted By validator

OEI Service Ceiling vs Category A

Hello, here is a Helicopter 101 question for you that worths 10 points =)

I just saw a graph for a halicopter, telling about the OEI service ceiling data, changing with MTOW, Altitude and...
Forum: Rotorheads
21st Jan 2013, 09:12
Replies: 4
Views: 1,879
Posted By validator

I found my own answer about s76c++ while...

I found my own answer about s76c++ while inspecting a graph
its -34.4C<OAT<50C for anyone thats interested =)

But s76d is data is still missing
Forum: Rotorheads
21st Jan 2013, 08:55
Replies: 4
Views: 1,879
Posted By validator

Operating Envelope s76C++ and S76D

Hey,

Does anyone know what is the approximate operating altitude/temperature envelope of S76C++ and S76D? I dont need the Weight vs Temperature vs Altitude graph, knowing that their service...
Forum: Rotorheads
16th Jan 2013, 05:38
Replies: 6
Views: 2,271
Posted By validator

FAA and EASA kinda helped thank you =) i...

FAA and EASA kinda helped thank you =)

i believe they won't share the information for a "simple" study.

Lastly, wtf is wrong with that video =)
Forum: Rotorheads
15th Jan 2013, 14:19
Replies: 6
Views: 2,271
Posted By validator

Turboshaft Engine Specifications

Hello,

I'm kinda need performance data about engines that are used in mid-weigth helicopters, such as PW210S, HTS900-2 and TM333 2B2, other than OEI and AEO performances - these are the...
Forum: Rotorheads
14th Jan 2013, 06:00
Replies: 11
Views: 4,018
Posted By validator

thanks for all the answers, I have been reading...

thanks for all the answers, I have been reading too much lately, especially on the reliability of TS engines, what you guys wrote here helped me a lot.

take care
Forum: Rotorheads
11th Jan 2013, 13:00
Replies: 11
Views: 4,018
Posted By validator

OEI Performance

Hello,

I'm kinda lost among some information for a study im trying to complete.

We know that TS engines have 30s, 2min and continuous OEI power limits, Take off and continuous AEO limits.
...
Showing results 1 to 14 of 14


 
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